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User Guide
Audio Products
Mixers and Processors
AXP 64 C AT
PRELIMINARY
Audio Expansion Processor
68-2721-01 Rev. A
03 15
Safety Instructions
Safety Instructions • English
WARNING: This symbol,
, when used on the product, is intended to
alert the user of the presence of uninsulated dangerous voltage within the
product’s enclosure that may present a risk of electric shock.
ATTENTION: This symbol,
, when used on the product, is intended
to alert the user of important operating and maintenance (servicing)
instructions in the literature provided with the equipment.
For information on safety guidelines, regulatory compliances, EMI/EMF
compatibility, accessibility, and related topics, see the Extron Safety and
Regulatory Compliance Guide, part number 68-290-01, on the Extron website,
www.extron.com.
Instructions de sécurité • Français
AVERTISSEMENT : Ce pictogramme,
, lorsqu’il est utilisé sur le
produit, signale à l’utilisateur la présence à l’intérieur du boîtier du produit
d’une tension électrique dangereuse susceptible de provoquer un choc
électrique.
ATTENTION :Ce pictogramme,
, lorsqu’il est utilisé sur le produit,
signale à l’utilisateur des instructions d’utilisation ou de maintenance
importantes qui se trouvent dans la documentation fournie avec le
matériel.
Pour en savoir plus sur les règles de sécurité, la conformité à la réglementation,
la compatibilité EMI/EMF, l’accessibilité, et autres sujets connexes, lisez les
informations de sécurité et de conformité Extron, réf. 68-290-01, sur le site
Extron, www.extron.com.
Sicherheitsanweisungen • Deutsch
WARNUNG: Dieses Symbol
auf dem Produkt soll den Benutzer
darauf aufmerksam machen, dass im Inneren des Gehäuses dieses
Produktes gefährliche Spannungen herrschen, die nicht isoliert sind
und die einen elektrischen Schlag verursachen können.
VORSICHT: Dieses Symbol
auf dem Produkt soll dem Benutzer in der
im Lieferumfang enthaltenen Dokumentation besonders wichtige Hinweise
zur Bedienung und Wartung (Instandhaltung) geben.
Weitere Informationen über die Sicherheitsrichtlinien, Produkthandhabung,
EMI/EMF-Kompatibilität, Zugänglichkeit und verwandte Themen finden Sie in
den Extron-Richtlinien für Sicherheit und Handhabung (Artikelnummer
68-290-01) auf der Extron-Website, www.extron.com.
Инструкция по технике безопасности • Русский
ПРЕДУПРЕЖДЕНИЕ: Данный символ,
, если указан
на продукте, предупреждает пользователя о наличии
неизолированного опасного напряжения внутри корпуса
продукта, которое может привести к поражению
электрическим током.
ВНИМАНИЕ: Данный символ,
, если указан на продукте,
предупреждает пользователя о наличии важных инструкций
по эксплуатации и обслуживанию в руководстве,
прилагаемом к данному оборудованию.
Для получения информации о правилах техники безопасности,
соблюдении нормативных требований, электромагнитной
совместимости (ЭМП/ЭДС), возможности доступа и других
вопросах см. руководство по безопасности и соблюдению
нормативных требований Extron на сайте Extron: www.extron.com,
номер по каталогу - 68-290-01.
安全说明 • 简体中文
警告：
产品上的这个标志意在警告用户该产品机壳内有暴露的危险 电压，
有触电危险。
注 意：
产 品 上 的 这个 标 志 意 在 提 示用 户 设 备 随 附 的 用 户 手 册 中 有
重要的操作和维护(维修）说明。
关于我们产品的安全指南、遵循的规范、EMI/EMF 的兼容性、无障碍
使用的特性等相关内容，敬请访问 Extron 网站 www.extron.com，参见
Extron 安全规范指南，产品编号 68-290-01。
安全記事 • 繁體中文
警告:
若產品上使用此符號，是為了提醒使用者，產品機殼內存在著
可能會導致觸電之風險的未絕緣危險電壓。
注意
若產品上使用此符號，是為了提醒使用者，設備隨附的用戶手冊中有重
要的操作和維護（維修）説明。
有關安全性指導方針、法規遵守、EMI/EMF 相容性、存取範圍和相關主題的詳細資
訊，請瀏覽 Extron 網站：www.extron.com，然後參閱《Extron 安全性與法規
遵守手冊》，準則編號 68-290-01。
安全上のご注意 • 日本語
Instrucciones de seguridad • Español
ADVERTENCIA: Este símbolo,
, cuando se utiliza en el producto,
avisa al usuario de la presencia de voltaje peligroso sin aislar dentro del
producto, lo que puede representar un riesgo de descarga eléctrica.
ATENCIÓN: Este símbolo,
, cuando se utiliza en el producto, avisa
al usuario de la presencia de importantes instrucciones de uso y
mantenimiento recogidas en la documentación proporcionada con el
equipo.
Para obtener información sobre directrices de seguridad, cumplimiento
de normativas, compatibilidad electromagnética, accesibilidad y temas
relacionados, consulte la Guía de cumplimiento de normativas y seguridad de
Extron, referencia 68-290-01, en el sitio Web de Extron, www.extron.com.
警告: この記号
が製品上に表示されている場合は、筐体内に絶縁されて
いない高電圧が流れ、感電の危険があることを示しています。
注意: この記号
が製品上に表示されている場合は、本機の取扱説明書
に 記載されている重要な操作と保守(整備)の指示についてユーザーの 注
意を喚起するものです。
安全上のご注意、法規厳守、EMI/EMF適合性、その他の関連項目に
ついては、エクストロンのウェブサイト www.extron.com より『Extron Safety
and Regulatory Compliance Guide』(P/N 68-290-01) をご覧ください。
안전 지침 • 한국어
경고: 이 기호
가 제품에 사용될 경우, 제품의 인클로저 내에 있는
접지되지 않은 위험한 전류로 인해 사용자가 감전될 위험이 있음을
경고합니다.
주의: 이 기호
가 제품에 사용될 경우, 장비와 함께 제공된 책자에 나와
있는 주요 운영 및 유지보수(정비) 지침을 경고합니다.
안전 가이드라인, 규제 준수, EMI/EMF 호환성, 접근성, 그리고 관련 항목에
대한 자세한 내용은 Extron 웹 사이트(www.extron.com)의 Extron 안전 및
규제 준수 안내서, 68-290-01 조항을 참조하십시오.
FCC Class A Notice
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to part 15 of the FCC rules. The Class A limits provide reasonable
protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy and,
if not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential area is
likely to cause interference. This interference must be corrected at the expense of the user.
PRELIMINARY
NOTE: For more information on safety guidelines, regulatory compliances, EMI/EMF
compatibility, accessibility, and related topics, see the “Extron Safety and Regulatory
Compliance Guide” on the Extron website.
Copyright
© 2015 Extron Electronics. All rights reserved.
Trademarks
All trademarks mentioned in this guide are the properties of their respective owners.
The following registered trademarks®, registered service marks(SM), and trademarks(TM) are the property of
RGB Systems, Inc. or Extron Electronics:
Registered Trademarks (®)
AVTrac, Cable Cubby, CrossPoint, eBUS, EDID Manager, EDID Minder, Extron, Flat Field, GlobalViewer, Hideaway, Inline, IP Intercom, IP Link, Key Minder,
LockIt, MediaLink, PlenumVault, PoleVault, PowerCage, Pure3, Quantum, SoundField, SpeedMount, SpeedSwitch, System INTEGRATOR, TeamWork,
TouchLink, V‑Lock, VersaTools, VN‑Matrix, VoiceLift, WallVault, WindoWall, XTP, and XTP Systems
Registered Service Mark(SM) : S3 Service Support Solutions
Trademarks (™)
AAP, AFL (Accu‑Rate Frame Lock), ADSP (Advanced Digital Sync Processing), Auto‑Image, CableCover, CDRS (Class D Ripple Suppression),
DDSP (Digital Display Sync Processing), DMI (Dynamic Motion Interpolation), Driver Configurator, DSP Configurator, DSVP (Digital Sync Validation
Processing), DTP, eLink, EQIP, FastBite, FlexOS, FOX, FOXBOX, Global Configurator, IP Intercom HelpDesk, LinkLicense, MAAP, MicroDigital, NetPa,
ProDSP, QS‑FPC (QuickSwitch Front Panel Controller), Room Agent, Scope‑Trigger, ShareLink, SIS, Simple Instruction Set, Skew‑Free, SpeedNav,
Triple‑Action Switching, WebShare, XTRA, ZipCaddy, ZipClip
Conventions Used in this Guide
Notifications
The following notifications are used in this guide:
ATTENTION:
• Risk of property damage.
• Risque de dommages matériels.
NOTE: A note draws attention to important information.
TIP: A tip provides a suggestion to make working with the application easier.
Software Commands
Commands are written in the fonts shown here:
^AR Merge Scene,,Op1 scene 1,1 ^B 51 ^W^C
[01] R 0004 00300 00400 00800 00600 [02] 35 [17] [03]
PRELIMINARY
E X! *X1&* X2)* X2#* X2! CE}
NOTE: For commands and examples of computer or device responses mentioned
in this guide, the character “0” is used for the number zero and “O” is the capital
letter “o.”
Computer responses and directory paths that do not have variables are written in the font
shown here:
Reply from 208.132.180.48: bytes=32 times=2ms TTL=32
C:\Program Files\Extron
Variables are written in slanted form as shown here:
ping xxx.xxx.xxx.xxx —t
SOH R Data STX Command ETB ETX
Selectable items, such as menu names, menu options, buttons, tabs, and field names are
written in the font shown here:
From the File menu, select New.
Click the OK button.
Specifications Availability
Product specifications are available on the Extron website, www.extron.com.
Introduction............................................................ 1
About this Guide.................................................. 1
About the AXP 64 C AT....................................... 1
Features.............................................................. 1
AXP 64 C AT Application Diagrams..................... 4
Installation............................................................... 6
System Configuration.......................................... 6
Rear Panel Features and Cabling......................... 7
Front Panel Indicators........................................ 10
Connecting the AXP 64 C AT to a Network........ 11
Creating a Physical Dante Network.................... 11
Star Network Configuration............................ 12
Daisy Chain Configuration.............................. 12
Software Installation.......................................... 13
AXP 64 C AT Software Programs................... 13
Software Installation Overview....................... 13
Downloading and Installing Dante
Controller for Windows................................. 14
Downloading and Installing
DSP Configurator......................................... 19
Updating Firmware............................................ 21
Resetting........................................................... 22
DSP Configurator Configuration and
Operation............................................................... 23
AXP 64 C AT Operation..................................... 23
Starting the DSP Configurator........................... 24
The AXP 64 C AT Main Screen.......................... 25
Menus........................................................... 27
Navigating the Main Screen........................... 33
Connecting to and Disconnecting from a
Device on the Network..................................... 34
Connecting to an AXP 64.............................. 34
Disconnecting from an AXP 64...................... 35
Live and Emulate Modes............................... 36
Naming a Digital Input or an Analog Output
using DSP Configurator.................................... 36
DSP Processing and Signal Flow....................... 37
Copying, Cutting, and Pasting Blocks............ 38
Managing Filter and Processor Blocks........... 40
Changing Block Parameters.......................... 40
Input Channels.................................................. 41
Switching an Input between Analog and
Digital........................................................... 42
Input Gain...................................................... 42
Filter Blocks — Input..................................... 43
Acoustic Echo Cancellation (AEC) ................. 49
Dynamics Processor Blocks.......................... 52
Output Channels............................................... 57
AT Output Gain (GAIN) .................................. 58
Analog Output Blocks.................................... 58
Digital I/O.......................................................... 62
Configuring the Digital I/O Ports..................... 62
Digital I/O Example........................................ 64
Signal Path Building Blocks............................... 65
Selecting a Microphone Configuration........... 65
Creating a Building Block............................... 66
Organizing Building Blocks............................ 67
Dante Controller Configuration and
Operation .............................................................. 70
AXP 64 AT Bus.................................................. 70
Managing Network Traffic.................................. 70
Starting Dante Controller................................... 71
Device Name................................................. 72
Renaming an Input or Output........................ 72
Selecting Inputs and Outputs for Dante............. 76
AXP 64 C AT Inputs and Outputs on
Dante Controller........................................... 76
Routing Signals using Dante.......................... 77
Dante Troubleshooting....................................... 78
AXP 64 C AT • Table of Contents
v
PRELIMINARY
Contents
PRELIMINARY
SIS Configuration and Control......................... 81
Establishing a Network Connection................... 81
Using SIS Commands....................................... 82
AXP 64 C AT-initiated Messages.................... 82
SIS Command Sets....................................... 83
Using the Command and Response
Tables........................................................... 83
Error Responses............................................ 83
Basic SIS Commands....................................... 84
Symbol Definitions......................................... 84
Special Characters........................................ 84
Command and Response Table for Basic
SIS Commands............................................ 84
DSP SIS Commands......................................... 85
Command Structure...................................... 85
Processors Configurable by SIS
Commands.................................................. 85
Symbol Definitions......................................... 86
Special Characters........................................ 87
Command and Response Table for DSP
SIS Commands............................................ 88
Digital I/O SIS Commands................................. 89
Symbol Definitions......................................... 89
Command and Response Table for
Digital I/O SIS Commands............................ 89
Mounting the AXP 64 C AT................................ 90
AXP 64 C AT • Table of Contents
vi
Introduction
This section provides an overview of this guide and the features of the Extron AXP 64 C AT
Audio Expansion Processor. Topics include:
•
About this Guide
•
About the AXP 64 C AT
•
Features
•
AXP 64 C AT Application Diagrams
About this Guide
This guide contains installation, configuration, and operation information for the Extron
Electronics AXP 64 C AT Audio Expansion Processor. In this guide, the terms “AXP,”
“AXP 64,” “AXP 64 C AT,” and “processor” are used interchangeably to refer to the
AXP 64 C AT.
PRELIMINARY
About the AXP 64 C AT
The Extron AXP 64 C AT is an audio expansion processor with six mic/line inputs and
four line outputs for remote connectivity to a Dante™-enabled DMP 128 audio system.
It is used to place six mic/line sources onto a Dante audio network, and route any four
Dante channels from the network to analog output for connection to an amplifier or other
destination. The AXP 64 C AT features Extron ProDSP™ with gain, filtering, and dynamics
processing for all inputs and outputs. Four of the inputs also include Acoustic Echo
Cancellation (AEC), 48 volt phantom power for each, and dedicated control ports for mic
control.
In addition, inputs 1 through 4 are FlexInput capable, allowing you to route a Dante channel
in place of a local mic/line input. A single Ethernet cable to a central equipment rack can
link multiple AXP 64 C AT units, avoiding the need to pull one cable for each mic/line input.
The DSP Configurator Software, downloadable free of charge from www.extron.com,
enables setup of DSP parameters and AEC.
The compact 1U high, half rack wide, 9.5-inch (24.1 cm) deep enclosure can be placed on
furniture near table microphones and line level sources. It can also be mounted to a rack or
under furniture. For information on mounting options and UL rack mounting guidelines see
Mounting the AXP 64 C AT, beginning on page 90.
Features
•
Inputs — Six balanced or unbalanced mic/line level processed inputs, four with AEC,
are provided on 3.5 mm, 3-pole captive screw connectors.
•
Phantom power — 48-volt phantom power is provided on the first four inputs.
•
Independent AEC — Four independent channels of high performance AEC, as well as
selectable noise cancellation, are provided on the first four inputs. Extron AEC features
advanced algorithms that deliver fast echo canceler convergence for optimal intelligibility
in situations that challenge AEC performance, including double-talk and the use of
wireless microphones at the near end.
AXP 64 C AT • Introduction
1
PRELIMINARY
•
FlexInput Channels — The first four inputs provide FlexInput capability to route a
Dante channel in place of a local mic/line input. The flexible input selection enables the
AXP 64 C AT to process audio from remote wireless microphones, wallplates, and other
sources from anywhere on the Dante network.
•
Flexible pre-processed and post-processed input signal routing — The internal
DSP architecture sends both pre-processed and post-processed input feeds from the
first four inputs onto the Dante network. The last two inputs provide post-processing
feeds to the Dante network. This provides the flexibility to limit the signal processing on
mic input signals for recording, assistive listening, or voice reinforcement feeds, while
applying full processing and AEC to a conferencing application.
•
Outputs — Four balanced or unbalanced line level outputs are provided on a 3.5 mm,
6-pole captive screw connector.
•
AT Expansion outputs — Ten DSP AT expansion outputs are placed directly onto a
Dante audio network.
•
Dante-to-line level outputs — Four Dante-to-line level outputs convert Dante audio
network signals to line level output signals with filtering and dynamic processing tailored
for the local environment.
•
Digital I/O — One digital input, ground, and dual digital outputs at each mic/line input
allow for external triggering, such as mic activation and muting and illuminating status
LEDs.
•
Expansion through Dante audio networking — The Dante equipped AXP 64 C AT,
in conjunction with the DMP 128, provides scalability for creating large audio matrixes
over a local area network using standard Internet protocols. Dante technology
distributes up to 512x512 audio channels at 24-bit/48 kHz over a single Gigabit
Ethernet link. A built-in four-port Gigabit switch also provides direct interconnection of
multiple AXP 64 C AT units to create large, cost-effective audio matrixes. Both Dante
and the four-port switch are AVB-ready.
•
Four-port Gigabit switch — The built-in, four-port Gigabit switch provides network
pass-through to additional AXP 64 C AT units and direct interconnection with
DMP 128 AT units.
•
ProDSP 32/64-bit floating point signal processing — The AXP 64 C AT features
32/64-bit floating point audio DSP processing, which maintains very wide dynamic
range and audio signal transparency, to simplify management of gain staging while
reducing the possibility of DSP signal clipping.
•
Studio grade 24-bit/48 kHz analog-to-digital converters — Professional
converters fully preserve the integrity of the original audio signal.
•
Low latency DSP processing — The AXP 64 C AT features very low, deterministic
latency from input to output, regardless of the number of active channels or processes.
While latency increases in channels with AEC enabled, overall latency remains low,
keeping audio in sync with video.
•
DSP Configurator Software — A powerful yet user-friendly PC-based software tool
can be used for managing all audio operations of the AXP 64 C AT. It enables complete
setup and configuration of digital audio processing tools on the ProDSP platform.
•
Intuitive Graphical User Environment — The DSP Configurator Software features
a Graphical User Environment that offers a clear view of all inputs, outputs, and audio
processing blocks in a single window. This allows a designer or installer to quickly view
an audio configuration without having to access multiple windows or menus.
AXP 64 C AT • Introduction
2
PRELIMINARY
•
Device Manager configuration software — Device Manager in the DSP Configurator
Software enables configuration of multiple Extron DSP products, including networked
AXP 64 C AT by toggling between Graphical User Environments for each unit.
Processors can be grouped into folders for organizing as separate rooms or buildings.
Settings for multiple Extron DSP products in Device Manager can be saved to a single
file.
•
Control options — The AXP 64 C AT can be controlled using the DSP Configurator
Software and a PC connection to the Ethernet port. It can also be controlled through a
computer or control system with Extron Simple Instruction Set (SIS) commands.
•
Copy and paste for processing blocks — For efficient audio system design and
setup, parameter settings can be quickly copied between individual processing blocks
or identical groups of blocks within the Graphical User Environment using conventional
cut-and-paste commands.
•
Building Blocks processor settings — Flexible Building Blocks are a set of
pre-designed processor settings optimized for a specific type of input device (such
as microphones) with preset levels, filters, dynamics, and more. Building Blocks are
available on each input strip and allow system designers to fully customize and save
their own Building Blocks for efficient system design and integration.
•
Live and Emulate operation modes with configuration file saving — Live mode
allows integrators to connect to the AXP 64 C AT and make live parameter adjustments
while hearing or metering them in real-time. This avoids the need to compile and upload
a configuration file to the DSP.
Emulate mode allows settings to be configured offline, then uploaded to the
AXP 64 C AT. Additionally, current settings on an AXP 64 C AT can be backed up to a
configuration file for archiving.
•
SpeedNav keyboard navigation – SpeedNav enables user-friendly, keyboard-based
navigation of the DSP Configurator Software without the need for a mouse or touchpad.
Using keyboard navigation keys and shortcuts, you can access any input and all audio
DSP tools. Using only the keyboard for software access can help expedite audio system
setup and optimization while on-site using laptop PCs.
•
Front panel input signal presence and clipping LEDs — The AXP 64 C AT front
panel contains LEDs for each input, enabling real-time monitoring of signal presence. A
separate LED illuminates as a warning whenever analog signal clipping is detected.
•
Ethernet monitoring and control — Ethernet control enables you to proactively
monitor and manage the AXP 64 C AT over a LAN, WAN, or the Internet, using standard
TCP/IP protocols.
AXP 64 C AT • Introduction
3
AXP 64 C AT Application Diagrams
Assistive Listening
System Emitters
Network
Extron
AXP 64 C AT
Extron
MPA 152 Plus
Expansion
Processor
3
4
IN G 01 02
IN G 01 02
IN G 01 02
IN G 01 02
1
2
3
4
MPA 152 Plus
AT
8Ω / 4Ω
1
5
6
OUTPUTS
INPUTS
POWER
12V
X.XA MAX
Power
Amplifier
1
2
2
3
3
INPUTS
4
CLASS 2
WIRING
R
L
POWER
12V
0.7A MAX
4
RESET
L
AXP 64 C AT
R
L
V
10V
R
C
G
50mA
REMOTE
2
OUTPUTS
1
I/O
Wireless Microphone Transmitters
Equipment Rack
OUTPUTS
MPA 152 Plus
8Ω / 4Ω
Assistive Listening
System Transmitter
2
3
4
IN G 01 02
IN G 01 02
IN G 01 02
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1 2 3 4 5 G
11 12 13 14 15 G
6 7 8 9 10 G
16 17 18 19 20 G
1
2
3
4
RS-232
Tx Rx G
RESET
LAN
EXP
Extron
DMP 128 C AT
Digital Matrix
Processor
AT
OUTPUTS
INPUTS
6
1
2
2
3
3
INPUTS
4
L
1
2
3
4
IN G 01 02
IN G 01 02
IN G 01 02
1
2
3
4
R
L
R
V
10V
R
C
G
50mA
Extron
MPA 152 Plus
Power
Amplifier
MPA 152 Plus
8Ω / 4Ω
INPUTS
CLASS 2
WIRING
L
R
L
R
L
POWER
12V
0.7A MAX
Expansion
Processor
IN G 01 02
L
RESET
AXP 64 C AT
Extron
AXP 64 C AT
POWER
12V
X.XA MAX
CLASS 2
WIRING
POWER
12V
0.7A MAX
4
R
V
10V
C
G
50mA
Speakers
1
5
6
1
2
2
3
3
4
4
RESET
AXP 64 C AT
Lectern
Clerk
100-240V
1.5A, 50-60 Hz
XPA 4002 -70V
GREEN - ACTIVE
AMBER - STANDBY
REMOTE
G
STANDBY
PRELIMINARY
Codec
G
50mA
AT
DMP 128 C AT
C
8Ω / 4Ω
1
5
OUTPUTS
12
V
10V
MPA 152 Plus
I/O
1
IN G 01 02
I/O
10
11
INPUTS
9
8
AT
4
7
REMOTE
3
6
DIGITAL I/O
2
5
OUTPUTS
MIC/LINE INPUTS
1
R
L
R
REMOTE
4
L
OUTPUTS
3
CLASS 2
WIRING
REMOTE
50/60 Hz
2
R
OUTPUTS
POWER
12V
X.XA MAX
MIC +48V
1
L
Expansion
Processor
Wireless Microphone
Receivers
100-240V ~ --A MAX
INPUTS
POWER
12V
0.7A MAX
REMOTE
Extron
AXP 64 C AT
INPUTS
ATTENUATION
LIMITER/
PROTECT
1
2
1
14
1
2
12 10 8
18
6
4
26
2
0
14
12 10 8
18
6
4
26
2
0
HPF
2
1
70 V OUTPUTS
CLASS 2 WIRING
2
1
2
80 Hz
OFF
SIGNAL
Extron
XPA 4002-70V
Power Amplifier
Gooseneck
Microphones
4 Channel
CM#1
Recorder
CM#2
CM#3
CM#4
CM#5
CM#6
CM#7
Extron
SI 26CT
Two-Way Ceiling Speakers
Figure 1.
AXP 64 C AT with DMP 128 in an Equipment Rack
AXP 64 C AT • Introduction
4
Extron
SI 26CT
Speakers
Wireless Microphone Transmitters
4 Channel
Recorder
Clerk
Network
INPUTS
1
2
OUTPUTS
3
4
5
6
1
CLIP
CLIP
SIGNAL
SIGNAL
Extron
2
3
4
INPUTS
1
2
3
OUTPUTS
4
5
6
STEREO
LEVEL
BASS
TREBLE
MPA 152 Plus
PRELIMINARY
MINI POWER AMPLIFIER
1
CLIP
CLIP
SIGNAL
SIGNAL
Extron
DUAL
MONO
Extron
AXP 64 C AT
Expansion
Processor (3)
Lectern
AXP 64 C AT
AUDIO EXPANSION PROCESSOR
2
INPUTS
3
4
1
2
3
OUTPUTS
4
5
6
1
CLIP
CLIP
SIGNAL
SIGNAL
2
Extron
AXP 64 C AT
AUDIO EXPANSION PROCESSOR
3
4
AXP 64 C AT
AUDIO EXPANSION PROCESSOR
Microphones
STEREO
LEVEL
BASS
DUAL
MONO
TREBLE
MPA 152 Plus
MINI POWER AMPLIFIER
STEREO
DUAL
MONO
LEVEL
BASS
TREBLE
MPA 152 Plus
MINI POWER AMPLIFIER
STEREO
DUAL
MONO
LEVEL
BASS
Extron
MPA 152 Plus
Amplifer (4)
Speakers
TREBLE
MPA 152 Plus
MINI POWER AMPLIFIER
C
M
#1
C
CM
#2
CM
CM#
3
CM#4
CM#
Assistive Listening
System Emitters
Figure 2.
#6
M
#7
In Rack
Equipment:
IR Transmitter
Codec
(2) Wireless
Recievers
DMP 128 AT
XPA 4002-70V
5
INPUTS
1
ACTIVITY
CONFIG
EXP
LAN
2
3
4
5
OUTPUTS
6
7
8
9
10
11
12
1
CLIP
CLIP
SIGNAL
SIGNAL
2
3
4
5
6
7
8
DMP 128
DIGITAL MATRIX PROCESSOR
GREEN - ACTIVE
AMBER - STANDBY
OVER
TEMP
1
2
LIMITER / PROTECT
SIGNAL
XPA 4002
AXP 64 C AT Auditorium Application
AXP 64 C AT • Introduction
5
Installation
This section describes the front and rear panel features and the rear panel connections. It
also provides procedures for installing the Dante Controller and DSP Configurator software.
The following topics are discussed:
•
System Configuration
•
Rear Panel Features and Cabling
•
Front Panel Indicators
•
Connecting the AXP 64 C AT to a Network
•
Creating a Physical Dante Network
•
Software Installation
•
Updating Firmware
•
Resetting
PRELIMINARY
System Configuration
The AXP 64 C AT does not have physical controls for configuration or operation. These are
accomplished using a computer running Windows® 7® or later and the DSP Configurator
software (available at www.extron.com), or by SIS commands using Extron DataViewer
(also available from the Extron website).
Dante Controller for Windows from Audinate is required to select and route Dante transmit
and receive channels to all connected Dante-compatible devices (see Downloading and
Installing Dante Controller for Windows on page 14). The AXP 64 C AT has front and
rear panel operational indicators and a rear panel reset button for hardware resets (see
Resetting on page 22).
You can fully configure the AXP 64 C AT using the DSP Configurator software. When first
launched, the DSP Configurator opens a blank configuration with no processing defined. All
gain stages are muted and set to Unity (0 dB) gain.
The AXP 64 C AT provides a comprehensive set of DSP processing tools. Use the filter tools
to shape the tonal quality of your microphones or EQ the room to compensate for acoustic
gain. Use the dynamics processors for level control or system protection. Input and output
gain stages provide metering in decibels relative to full scale (dBFS) to assist in configuration
of the device for optimal operation. Optimal operating levels are close to 0 dBFS (0 dB “full
scale” on the input or output meters) without exceeding that level. Levels above 0 dBFS
cause clipping, which is always audible on a digital device.
AXP 64 C AT • Installation
6
Rear Panel Features and Cabling
A
2
3
4
IN G 01 02
IN G 01 02
IN G 01 02
IN G 01 02
1
2
3
4
AT
A
B
C
1
5
6
Power connector
Digital I/O connectors
Mic/line input connectors
Figure 3.
OUTPUTS
POWER
12V
1.0A MAX
INPUTS
I/O
1
F
E
D
C
B
D
E
F
1
2
2
3
3
4
4
RESET
AXP 64 C AT
Analog output connectors
AT port connectors
Reset button
AXP 64 C AT Rear Panel
A Power input connector — Connect the provided 12 VDC power supply to this captive
screw connector and plug the power cord into an AC power source. Verify that the front
panel power LED lights (see figure 8, A, on page 10).
• Do not connect any external power supplies until you have read the Attention
notifications on the next page.
• Ne branchez pas de sources d’alimentation externes avant d’avoir lu les mises
en garde de la page suivante.
Rear Panel
Power Receptacle
DC Power Cord
Captive Screw
Connector
Ridged
– Return
+12 VDC input
Ground
all devices.
Smooth
100-240V
50-60Hz
1A MAX
PRELIMINARY
ATTENTION:
External
Power Supply
12 VDC, 1 A max.
Extron Part Number 70-775-01 (28-071-57LF)
Figure 4.
Connecting the External Power Supply
Power cycle — The current mixing and audio processor settings (the current state)
of the AXP are saved in nonvolatile memory. When the unit is powered off, all settings
are retained. When the unit is powered back on, it recalls settings from the nonvolatile
memory and reapplies them. If a configuration is in process but has not been saved
when power is removed, the previously saved audio level and audio DSP processor
settings become active.
After the AXP is powered on, the front panel power LED (see figure 8, A) lights
steadily when the unit is available for operation or configuration.
AXP 64 C AT • Installation
7
ATTENTION:
• Always use a power supply provided by or specified by Extron. Use of an
unauthorized power supply voids all regulatory compliance certification and
may cause damage to the supply and the end product.
• Utilisez toujours une source d’alimentation fournie par Extron. L’utilisation
d’une source d’alimentation non autorisée annule toute conformité
réglementaire et peut endommager la source d’alimentation ainsi que l’unité.
• Unless otherwise stated, the AC/DC adapters are not suitable for use in air
handling spaces or in wall cavities. The power supply is to be located within
the same vicinity as the Extron AV processing equipment in an ordinary
location, Pollution Degree 2, secured to the equipment rack within the
dedicated closet, podium, or desk.
PRELIMINARY
• Sauf mention contraire, les adaptateurs AC/DC ne sont pas appropriés pour
une utilisation dans les espaces d’aération ou dans les cavités murales.
La source d’alimentation doit être située à proximité de l’équipement de
traitement audiovisuel dans un endroit ordinaire, avec un degré 2 de pollution,
fixé à un équipement de rack à l’intérieur d’un placard, d’une estrade, ou d’un
bureau.
• The installation must always be in accordance with the applicable provisions
of National Electrical Code ANSI/NFPA 70, article 725 and the Canadian
Electrical Code part 1, section 16. The power supply shall not be permanently
fixed to building structure or similar structure.
• Cette installation doit toujours être en accord avec les mesures qui s’applique
au National Electrical Code ANSI/NFPA 70, article 725, et au Canadian
Electrical Code, partie 1, section 16. La source d’alimentation ne devra pas
être fixée de façon permanente à une structure de bâtiment ou à une structure
similaire.
B Digital I/O connectors — Four 4-pole, 3.5 mm captive
screw connectors associated with the mic/line inputs provide
digital input and output ports to connect microphones with
logic circuits (see figure 3 on the previous page). Each has an
input (IN), a ground (G), and two output (O1 and O2) ports.
The input port can enable mic mute from a remote source.
The two output ports can provide tally back to the mic LEDs
to indicate mic status. To wire these connectors, see the
illustration at right.
3"
(5
16
mm) MAX.
Do not tin the wires!
IN
G
O1
O2
Digital I/O Wiring
NOTE: To configure these ports, use DSP Configurator (see Digital I/O on
page 62).
C Mic/Line input connectors 1-6 — Connect up to six balanced or unbalanced
microphone or mono line level devices to these 3-pole, 3.5 mm captive screw
connectors for analog mic or line audio input (see figure 3). Inputs 1 through 4 provide
48 volts phantom power.
Wire the connectors as shown in figure 5.
Tip
Ring
Sleeve
Tip
Sleeve
Balanced Input
Unbalanced Input
Figure 5. Balanced or Unbalanced Mic and Line Input Wiring
AXP 64 C AT • Installation
8
Phantom power — Power through the signal lines of the first four mic/line inputs is
selectable via the DSP software.
ATTENTION:
• Condenser microphones require phantom power. Dynamic microphones do
not require power.
• Les microphones électrostatiques nécessitent une alimentation fantôme. Les
microphones dynamiques n’ont pas besoin d’alimentation.
• Never set an unbalanced dynamic microphone to +48 V. Doing so may
damage the microphone.
• Ne réglez jamais un microphone dynamique asymétrique à +48 V. Cela pourrait
endommager le micro.
• For condenser microphones, verify it safely operates at +48 VDC.
• Pour les microphones électrostatiques, vérifiez qu’ils fonctionnent bien à
+48 Vcc.
• When a line level source is connected, be certain the +48 V phantom power is
off (cleared).
• Lorsqu’une source de niveau ligne est connectée, soyez certain que
l’alimentation fantôme +48 V est débranchée (enlevée).
PRELIMINARY
D Analog output connectors — Audio outputs 1 through 4 are on two 3.5 mm, 6-pole
captive screw connectors (see figure 3 on page 7). Connect up to four balanced or
unbalanced mono line level or two stereo outputs to these two 6-pole 3.5 mm captive
screw connectors. Wire as shown in figure 6.
Do not tin the wires!
3"
(5
16
mm) MAX.
No Ground Here
+
–
Tip
Ring
Sleeves
Tip
Ring
Sleeves
+
–
+
–
Tip
Sleeves
Tip
+
–
Sleeves
No Ground Here
Balanced Output
Figure 6.
Unbalanced Output
Wiring for Analog Output
Alternatively, 3-pole or 5-pole connectors can be used. See figure 7 on the next page
for an example.
ATTENTION:
• For unbalanced audio outputs, connect the sleeves to the ground contact. DO
NOT connect the sleeves to the negative (-) contacts.
• Pour l’audio asymétrique, connectez les manchons au contact au sol. Ne PAS
connecter les manchons aux contacts négatifs (–).
AXP 64 C AT • Installation
9
I/O
1
IN
INPUTS
PO
12 WER
V
X.X
AM
AX
G
2
01
1
02
IN
G
2
3
01
02
IN
G
4
01
02
3
IN
G
01
02
4
DO NOT
Connect Here
AT
5
6
OUTPUTS
1
1
2
2
3
4
3
4
RE
AX
Figure 7.
SE
T
4C
AT
P6
5-pole CSR
Connecting a 5-pole Audio Connector
E AT port connectors — This four-port Gigabit switch with four RJ-45 Ethernet
connectors supports digital audio transport (AT) and communications (see figure 3 on
page 7). Connect one or more AXP 64 C ATs to a device such as the DMP 128 AT to
form a larger matrix system (see Creating a Physical Dante Network on page 11).
Up to 56 channels can be connected.
PRELIMINARY
NOTE: The digital and analog input channel is shared for each input. An input is
either analog or digital (Dante).
Any of these AT connectors can also be connected to an Ethernet LAN or WAN.
Communication between the AXP and a controlling device or computer is via a TCP
socket using port 4333 (see Connecting the AXP 64 to a Network on the next page).
This connection also enables control of the AXP via SIS commands issued from a
computer connected to the same LAN or WAN (see SIS Configuration and Control
beginning on page 81).
E Reset button — This recessed button returns the AXP 64 C AT to its factory default
state (see figure 3 on page 7 and Resetting on page 22).
Front Panel Indicators
A
B
C
INPUTS
1
2
3
OUTPUTS
4
5
6
1
CLIP
CLIP
SIGNAL
SIGNAL
Extron
2
3
4
AXP 64 C AT
AUDIO EXPANSION PROCESSOR
A Power LED
B Input LEDs
C Output LEDs
Figure 8.
AXP 64 C AT Front Panel
AXP 64 C AT • Installation
10
A Power LED — This green LED blinks during boot-up. It lights steadily when the
AXP 64 C AT is powered on and ready to operate (see figure 8 on the previous page).
B Input LEDs — One pair for each of the six inputs (see figure 8):
•
Clip indicators: These red LEDs light when the corresponding input signal
exceeds -3 dBFS. The clip indicator remains on for 200 ms after the input signal
drops below that level.
•
Signal indicators: These green LEDs light when there is an active source on the
corresponding input.
C Output LEDs — One pair for each of the four analog outputs (see figure 8):
•
Clip indicators: These red LEDs light when the corresponding output signal
exceeds -3 dBFS. The clip indicator remains on for 200 ms after the output signal
drops below that level.
•
Signal indicators: These green LEDs light when a signal is detected on the
corresponding analog output.
PRELIMINARY
Connecting the AXP 64 C AT to a Network
The AXP 64 supports 100 and 1000 Mbps half duplex and full duplex connections. You can
use either a standard, straight-through Ethernet cable or a crossover cable to connect the
AXP to a network via one of the four AT ports (see figure 3, E, on page 7). The control
device must be connected to the same network. Any one of the four AT ports can be
dedicated as a control connection.
If you do not know the IP address of the control device, use Dante Controller to obtain it
(see Establishing a Network Connection on page 81).
When all connections are made and power is applied, the green (activity) LED of the
connected AT port blinks to indicate data activity on the connection.
Creating a Physical Dante Network
A physical network is required to share Dante audio channels between an AXP 64 C AT and
DMP 128 AT devices. Each AXP 64 C AT contains a 4-port Gigabit switch with four RJ‑45
connectors located on the back panel that accept standard network cables. The 4-port
switch can operate as a standard switch described in this section.
NOTE: The Dante Controller network configuration defaults to switched mode (basic)
making star and daisy‑chain configurations possible.
An AXP 64 C AT‑based Dante network can be configured in a daisy‑chain or star network
topology using the 4-port switch and the Dante Controller in Switched mode.
AXP 64 C AT • Installation
11
Star Network Configuration
Star network topology has one DMP 128 C AT as the central unit, which is then directly
connected to up to three AXP 64 C ATs. Alternatively, a larger network switch can be used
in place of the central DMP 128 C AT, allowing more than three AXP 64 C ATs connected in
the star configuration (see figure 9).
AXP 64 C AT
1
2
3
4
IN G 01 02
IN G 01 02
IN G 01 02
IN G 01 02
1
2
3
4
AT
I/O
1
5
OUTPUTS
INPUTS
POWER
12V
X.XA MAX
6
2
1
2
3
3
4
4
RESET
AXP 64 C AT
AXP 64 C AT
AXP 64 C AT
4
IN G 01 02
1
2
3
4
6
1
2
3
4
IN G 01 02
IN G 01 02
IN G 01 02
IN G 01 02
1
2
3
4
I/O
AT
5
OUTPUTS
1
1
2
2
3
3
4
POWER
12V
X.XA MAX
4
RESET
AXP 64 C AT
AT
3
IN G 01 02
1
5
OUTPUTS
2
IN G 01 02
INPUTS
1
IN G 01 02
I/O
INPUTS
POWER
12V
X.XA MAX
6
2
1
2
3
3
4
4
RESET
AXP 64 C AT
2
3
4
5
6
7
8
3
4
9
10
6
7
8
11
12
DMP 128 C AT
Figure 9.
1
2
3
4
5
6
7
8
AT
2
5
MIC +48V
1
1 2 3 4 5 G
6 7 8 9 10 G
11 12 13 14 15 G
16 17 18 19 20 G
1
REMOTE
1
OUTPUTS
MIC/LINE INPUTS
50/60 Hz
DIGITAL I/O
DMP 128 C AT
100-240V ~ --A MAX
2
3
4
RS-232
RESET
Tx Rx G
LAN
EXP
Star Network Topology
Daisy Chain Configuration
8
1 2 3 4 5 G
11 12 13 14 15 G
6 7 8 9 10 G
16 17 18 19 20 G
1
AXP 64 C AT #1
2
3
4
RS-232
Tx Rx G
RESET
EXP
LAN
POWER
12V
X.XA MAX
1
2
3
4
IN G 01 02
IN G 01 02
IN G 01 02
IN G 01 02
1
2
3
4
AXP 64 C AT #3
AXP 64 C AT #2
1
5
6
1
2
2
3
3
4
POWER
12V
X.XA MAX
4
1
2
3
4
IN G 01 02
IN G 01 02
IN G 01 02
IN G 01 02
1
2
3
4
RESET
AXP 64 C AT
1
5
6
1
2
2
3
3
POWER
12V
X.XA MAX
4
4
RESET
AXP 64 C AT
1
2
3
4
IN G 01 02
IN G 01 02
IN G 01 02
IN G 01 02
1
2
3
4
AT
4
7
1
5
6
OUTPUTS
3
6
I/O
2
5
AT
1
INPUTS
8
DMP 128 C AT
OUTPUTS
12
I/O
10
11
AT
9
8
I/O
4
7
AT
3
6
OUTPUTS
2
5
INPUTS
7
4
OUTPUTS
6
3
INPUTS
5
2
REMOTE
50/60 Hz
1
MIC +48V
1
DIGITAL I/O
DMP 128 AT
100-240V ~ --A MAX
MIC/LINE INPUTS
PRELIMINARY
A daisy chain configuration can also be used. Each unit is connected to both the previous
unit and the next unit in the chain (see figure 10).
1
2
2
3
3
4
4
RESET
AXP 64 C AT
Figure 10. Daisy Chain Topology
Hybrid versions combining the star and daisy chain topologies can also be built, but a ring
topology, or any topology that creates a duplicate connection, causes a connection failure in
the Dante Controller software.
NOTE: Connections between AXP 64 C AT ports in either a star or daisy chain
network do not need to be sequential (port 1 to port 2, port 2 to port 3, port 3 to
port 4, and so on), nor do they need to be made between the same port numbers
(port 1 to port 1, port 2 to port 2, port 3 to port 3, and so on).
AXP 64 C AT • Installation
12
Software Installation
AXP 64 C AT Software Programs
The AXP 64 C AT has no front panel hardware controls. To configure and operate the AXP,
use a PC running Microsoft Windows 7 or newer and the following software programs:
•
Dante Controller for Windows from Audinate is required to select and route
AXP 64 C AT digital inputs and outputs to and from all connected Dante‑compatible
devices on the same network and to rename connected devices.
•
DSP Configurator is used to customize signal processing for the input channels of the
AXP 64 C AT.
To assist identification of multiple connected AXP 64 C ATs on the network, rename each
device using Dante Controller (see Renaming connected AXP 64 C AT devices on
page 17). After the AXP is renamed, you can connect DSP Configurator to configure it (see
Downloading and Installing DSP Configurator on page 19).
Both DSP Configurator and Dante Controller are available from the AXP 64 C AT product
page on the Extron website. Digital signal routing can be done only using Dante Controller
from Audinate.
PRELIMINARY
See Rear Panel Features and Cabling on page 7, and Connecting the AXP 64 to a
Network on page 11 for additional details to connect via the LAN ports.
Software Installation Overview
Both DSP Configurator and Dante Controller must be installed to configure the AXP 64 C AT
and route transmit and receive channels. Download and install both software programs in
the order they are listed below:
1. Download Dante Controller for Windows from the Extron website (see Downloading
and Installing Dante Controller for Windows on page 14).
2. Install Dante Controller.
3. Rename each AXP C AT as it is placed on the network (when there are multiple
AXP 64 C ATs on the network) (see Renaming connecting AXP 64 C AT devices on
page 17).
NOTES: • To avoid confusion, rename each device with a unique identifier.
• To simplify renaming, connect only one device to the network at a time. As
each device is renamed, it can remain on the network.
4. Download DSP Configurator (see Downloading and Installing DSP Configurator
on page 19).
5. Install DSP Configurator.
AXP 64 C AT • Installation
13
Downloading and Installing Dante Controller for Windows
1. On the Extron Electronics web page, click the Download tab (see figure 11, 1).
PRELIMINARY
2. On the Download screen, click the Dante Controller link (2) on the left sidebar.
Figure 11. Dante Controller Link on the Download Page
3. On the Dante Controller web page, click the Download Now button (see figure 12,
1).
Figure 12. Download Button on Dante Controller Web Page
AXP 64 C AT • Installation
14
4. In the Download Center dialog box, fill in the requested information about yourself (see
figure 13, 1), then click the button named Download dantecontrollernxnxn.exe
(2).
Figure 13. Download Center - Download Dante Controller Screen
5. A Download icon appears at the bottom of the page, showing the name of the installer
file (dantecontrollernxnxn.exe) and the amount of time elapsed. Wait until the icon
displays only the file name, then double-click it.
PRELIMINARY
6. On the Open File - Security Warning dialog box that opens, click Run.
Figure 14. Open File - Security Warning Dialog Box
7. On the first Dante Controller installation dialog box, read the “End User License
Agreement,” select the checkbox below the agreement box.
Figure 15. Dante Controller End User License Agreement Dialog
AXP 64 C AT • Installation
15
8. Click Install. The Dante Controller Setup dialog box opens and the program
begins installing.
Figure 16. Dante Controller Setup Progress Dialog Box
NOTE: By default, the Dante Controller files are placed in a folder that the
installation program creates at:
C:\Program Files (x86)\Audinate\Dante Controller\.
PRELIMINARY
9. When the installation completes, click Reboot. After the computer reboots, the following
screen appears, signifying that Dante Controller is ready to use.
Figure 17. Dante Setup Successful Screen
AXP 64 C AT • Installation
16
Renaming connected AXP 64 C AT devices
Dante Controller auto-discovers all Dante devices on the network and advertises itself to
allow other Dante-enabled devices to communicate with it. The default device name of the
AXP 64 C AT is the model number followed by the last six digits of the media access code
(MAC) address (for example: AXP 64 - 063f70). For verification and identification, the MAC
address is on a rear panel label attached between the digital I/O ports and the AT ports.
Multiple devices on the same network can present difficulty during input and output routing.
To avoid confusion, rename each device to a unique identifier.
NOTE: To simplify renaming, connect only one AXP 64 C AT to the network at a time.
As each device is renamed, it can remain connected.
1. Ensure the control computer and a single AXP 64 C AT are connected to the same
network (see Creating a Physical Dante Network on page 11).
2. From the PC start menu, select All Programs > Audinate > Dante Controller >
Dante Controller.
PRELIMINARY
The Dante Controller - Network View main screen opens (see figure 18). All Dante
devices on the network are discovered and listed.
Figure 18. Dante Controller - Network View Screen
3. On the menu bar, select Device/Device View.
Figure 19. Device View Menu
AXP 64 C AT • Installation
17
4. The Dante Controller - Device View screen opens. Select your AXP 64 C AT from
the (Select a Dante Device...) drop-down list.
Figure 20. Dante Device Selection Menu on the Device View Screen
NOTE: If there are multiple AXP 64s connected to the network that have not been
renamed, to identify an individual device you must obtain the MAC address of the
desired device from the label on the rear panel.
PRELIMINARY
The Device View screen populates with the selected AXP 64 C AT information.
Figure 21. Device View Screen Displaying Selected AXP 64 Information
5. Click the Device Config tab (see figure 22, 1) to open the device configuration page.
6. In the Rename Device panel of the Device Config page, enter the new name of the
device in the Rename Device text field (2). No spaces are allowed in the name.
Figure 22. Rename Device Text Field on the Device View Screen
7. Click Apply. The following confirmation prompt opens.
Figure 23. Apply Name Confirmation Prompt
AXP 64 C AT • Installation
18
8. Click Yes to apply the new name, then close the Device Config screen.
The new name is written to the AXP 64 C AT. Repeat steps 3 through 7 as necessary for all
your AXP 64 C AT devices.
NOTE: After a device is named, it can remain connected to the network. Subsequent
devices must be connected one at a time and renamed before the next device is
connected.
After the AXP 64s are renamed, you can configure them using DSP Configurator.
NOTE: After a name change, DSP Configurator loses connection with the AXP 64 C AT.
To reconnect, click Live on the DSP Configurator main screen and select the new
name.
Downloading and Installing DSP Configurator
1. On the Extron Electronics web page, click the Download tab (see figure 24, 1).
PRELIMINARY
2. On the left sidebar, click the DSP Configurator link (2).
Figure 24. DSP Configurator Link on the Download Screen
AXP 64 C AT • Installation
19
3. On the DSP Configurator web page, click the Download Now button (1).
PRELIMINARY
Figure 25. Download Center - Download DSP Configurator
4. In the Download Center dialog box, fill in the requested information about yourself (see
figure 26, 1), then click the button named Download dsp_configurator_nxnxn.exe
(2).
Figure 26. Download Center - Download Dante Controller Screen
5. A Download icon appears at the bottom of the page, showing the name of the installer
file (dsp_configurator_nxnxn.exe) and the amount of time elapsed. Wait until the
icon displays the only the file name, then double-click it.
AXP 64 C AT • Installation
20
6. On the Open File - Security Warning dialog box that opens, click Run.
Figure 27. Open File - Security Warning Dialog Box
7. Follow the instructions on the DSP Configurator - InstallShield Wizard to install
the DSP software.
PRELIMINARY
8. Although USB drivers are not needed for the AXP 64 C AT, during the first installation of
DSP Configurator, a USB driver also loads. When the installer completes the installation
of the USB drivers, you may see the following dialog box:
Figure 28. Successful USB Driver Installation
Click Finish. By default, the program is installed in a folder created at:
C:\Program Files\Extron\DSP Configurator.
An icon may also be placed on the desktop.
To launch the software, click:
Start>All Programs>Extron Electronics>DSP Configurator>DSP Configurator
Updating Firmware
The firmware of the AXP 64 C AT can be updated via Ethernet connection. Contact your
Extron Applications Engineer for details.
AXP 64 C AT • Installation
21
Resetting
A recessed button on the rear panel (see figure 3, F on page 7) initiates a reset to factory
values. Reset clears all processors, level controls, and mixers to the defaults and initiates a
Dante controller reset (see Dante Controller Configuration and Operation, beginning on
page 70). It also closes all open IP and Telnet connections and all sockets.
To reset the AXP 64 C AT:
1. With power off, press and hold the rear panel reset button.
2. Apply power to the device.
3. Continue to hold the reset button for about 10 seconds until the Ethernet port indicators
blink once.
PRELIMINARY
NOTE: Alternatively, you can reset the AXP by entering the ZXXX SIS reset command
(see Reset Commands on page 84).
AXP 64 C AT • Installation
22
DSP Configurator
Configuration and
Operation
•
AXP C AT Operation
•
Starting the DSP Configurator
•
The AXP 64 C AT Main Screen
•
Input Channels
•
Output Channels
•
Digital I/O
•
Signal Path Building Blocks
AXP 64 C AT Operation
You can fully configure the AXP 64 C AT using the DSP Configurator software. When first
launched, the DSP Configurator opens a blank configuration with no processing defined.
All gain stages are muted and set to Unity (0 dB) gain. Input and output gain stages provide
metering in dBFS to assist configuration of the device for optimal operation.
Because the AXP 64 C AT is a digital device, optimal operating levels are close to 0 dBFS
(0 dB “full scale” on the input or output meters) without going over it. Levels above 0 dBFS
cause clipping, which causes audible signal distortion on a digital device.
The AXP 64 C AT provides a comprehensive set of DSP processing tools and acoustic
echo cancellation (AEC). Use the filter tools to shape the tonal quality of your source
material. Use the dynamics processors for level control or system protection. AEC features
advanced algorithms that deliver fast echo cancellation convergence for optimal intelligibility
in situations that challenge performance, including double-talk, and the use of wireless
microphones at the near end.
AXP 64 C AT • DSP Configurator Configuration and Operation
23
PRELIMINARY
This section contains information on configuring and operating the AXP 64 C AT using the
DXP Configurator software.
Starting the DSP Configurator
NOTE: Download and install both the DSP Configurator software and Dante Controller
(see Software Installation on page 13) before starting either program.
1. Ensure that the control computer and the AXP 64 C AT are connected to the same
network (see Creating a Physical Dante Network on page 11) and that the
AXP 64 C AT is renamed for identification (see Renaming connected AXP 64 C AT
devices on page 17).
2. Start the DSP Configurator software by clicking:
Start > All Programs > Extron Electronics > DSP Configurator >
DSP Configurator.
PRELIMINARY
3. From the drop-down list on the DSP opening dialog box, select AXP 64 C AT, then click
OK.
Figure 29. DSP Configurator Opening Screen
The main AXP 64 C AT screen opens (see The AXP 64 C AT Main Screen on the next
page).
4. The program starts in Emulate mode (see Live and Emulate Modes on page 36).
•
To create a configuration offline and upload (push) it to the AXP 64 C AT at a later
time, keep the DSP Configurator in Emulate mode.
•
To push an existing configuration to the device, pull a configuration from the device,
or to make immediate changes to the current configuration or operation, select
Live mode.
NOTE: Changing from Emulate to Live mode opens the Connect to device...
dialog box. Follow the on‑screen prompts.
AXP 64 C AT • DSP Configurator Configuration and Operation
24
The AXP 64 C AT Main Screen
The DSP Configurator main screen for AXP 64 C AT contains controls for the input and
output channels and provides access to all features of the AXP.
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PRELIMINARY
.
3
2
1
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A Menu bar
B Title bar
C Input channel numbers
D Input labels
E Input gain controls
F Input filter controls
G Signal processor channels
H Output gain controls
/
I Mode buttons
J AT outputs (pre-processed)
K AT outputs (post-processed)
L Analog output attenuation controls
M Analog signal processor channels
N Trim controls
O Analog output labels
P Analog output channel numbers
Figure 30. AXP 64 C AT DSP Configurator Program Main Screen
AXP 64 C AT • DSP Configurator Configuration and Operation
25
A Menu bar — The menu bar (see figure 30 on the previous page) contains drop-down
menus that provide access to various DSP functions and the help file (see Menus on
page 27 for details).
B Title bar — This bar displays the name of the application (DSP Configurator), the
name of the current configuration (by default, this is AXP64_DSPconfign until the
configuration is saved under another name), followed by the name of the product
(AXP 64 C AT) (see figure 30).
C Input channel numbers — Click these numbered links () to open the Building
Blocks list, from which you can select a device configuration (set of building blocks) for
the input whose number was clicked (see figure 30 on the previous page and Signal
Path Building Blocks on page 65).
D Input labels — These fields contain the names of the inputs (see figure 30). You can
change these names for digital inputs only, using the DSP main screen (see Naming a
Digital Input or an Analog Output using DSP on page 36) or Dante Controller (see
Renaming an Input or Output on page 72). For analog inputs, these labels cannot be
changed.
E Input gain controls — These blocks provide access to gain controls for the selected
input, including gain adjustment, muting and unmuting, specifying whether the input is
analog (the processor block displays ANG GAIN) or digital (DIG GAIN), and other related
parameters (see figure 30 on the previous page and Input Gain on page 42).
PRELIMINARY
F Input filter controls (FILT) — These blocks let you add, remove, and edit filters for the
selected input, enabling selection of frequencies to be attenuated (see figure 30 on the
previous page and Filter Blocks — Input on page 43).
G Signal processor channels — Each of these channels contains the following
processor blocks (see figure 30):
•
Acoustic Echo Cancellation (AEC) — Removes potential echo from the signal at
the near end mic channel by comparing it to the received signal from the far end
(the reference), then creates an adaptive filter to cancel the potential echo before
it is sent back to the far end. Controls are provided to select a reference device
from a drop-down menu, view meters showing echo return loss (ERL), echo return
loss enhancement (ERLE), and total echo reduction (TER), and to adjust other AEC
parameters (see Accoustic Echo Cancellation (AEC) on page 49).
•
Dynamics (DYN) — Two dynamics blocks can be added to enable alteration of the
dynamic range (the difference between the loudest and the quietest portions of the
signal) for the selected AT output (see Dynamics Processor Blocks on page 52).
H Output gain controls — These blocks provide access to gain controls for the selected
AT output, including gain adjustment and muting or unmuting (see figure 30 on the
previous page and AT Output Gain (GAIN) on page 58).
I Mode buttons — Click these buttons to switch between Emulate mode and Live mode
(see figure 30 on the previous page and Live and Emulate Modes on page 36).
J AT outputs (pre-processed) — These four outputs, by default labeled PRE-OUT-01
through -04, are Dante Controller transmitters, available to any Dante-compatible
device on the same network (see figure 30). They are pre-processed outputs, meaning
that no output GAIN or processing blocks (AEC or DYN) are added to them. They are
normally used for recording systems or other devices for which mixing or processing will
be done post-routing (see Output Channels on page 57).
K AT outputs (post-processed) — Like the pre-processed AT outputs, these six
outputs, by default labeled OUTPUT-01 through -06, are transmitters on Dante
Controller, available to any Dante-compatible device on the same network. They can
have processor blocks inserted ahead of the signal routing (see figure 30 on the
previous page and Output Channels on page 57).
AXP 64 C AT • DSP Configurator Configuration and Operation
26
L Analog output attenuation controls (ATT) — These blocks provide attenuation
controls for the selected analog output, including attenuation adjustment, muting and
unmuting, and polarity selection (see figure 30 on page 25 and Attenuation block on
page 62).
M Analog signal processor channels — Each of these channels contains the following
processor blocks (see figure 30):
•
Loudness (LOUD) — Applies a filter compensation curve to the signal in an inverse
relationship to the gain control setting to compensate for changes in human
perception of varying volume levels (see Loudness (LOUD) on page 58).
•
Delay (DLY) — Lets you delay the audio signal by time or distance to either sync
audio to video or time-align speakers that are placed at different distances from the
listener.
•
Filter (FILT) — Lets you add, remove, and edit filters for the selected analog
output, enabling selection of frequencies to be attenuated (see Filter block
(FILT) — analog on page 60).
•
Dynamics (DYN) — Enables you to alter the dynamic range, which is the difference
between the loudest and the quietest portions of the signal, for the selected analog
output.
N Trim controls — These processor blocks enable fine adjustments to the volume of
PRELIMINARY
the selected analog output (see figure 30 on page 25 and Trim control (TRIM) on
page 58).
O Analog output labels — These fields contain the names of the analog outputs (see
figure 30). You can change these names using the DSP main screen (see Naming a
Digital Input or an Analog Output using DSP on page 36) or Dante Controller (see
Renaming an Input or Output on page 72).
P Analog output channel numbers — Click these numbered links to open the
Building Blocks list, from which you can select a device configuration (set of building
blocks) for the analog output whose number was clicked (see figure 30 on page 25
and Signal Path Building Blocks on page 65).
Menus
The menu bar is located below the title bar on the DSP Controller main screen (see
figure 30, A). These drop-down menus provide access to functions that may not be
readily accessible from the main workspace. The following menus are provided:
Figure 31. Menu Bar — DSP Configurator
File menu
The File menu contains the following items:
NOTE: New, Open, and Recent Files are unavailable in
Live mode.
•
New — Discards the current DSP configuration (after
prompting to save changes) and opens a blank configuration
file.
•
Open — Loads and activates a previously saved DSP
configuration file.
AXP 64 C AT • DSP Configurator Configuration and Operation
27
•
Save — Saves all changes to the current DSP configuration file under the current file
name.
If the file has not previously been saved, a Save As window opens for you to provide the
file name and location. By default, saved configurations are stored on your computer in
a folder at:
C:\ProgramData\Extron Electronics\DSP Configurator
If desired, you can save them to a different folder.
•
Save As — Lets you save all changes to the current DSP configuration file under a new
file name and at the desired location.
•
Recent Files — Opens a list of recently opened or saved DSP configuration files. If no
configurations have been saved, this field is grayed out.
•
Exit — Closes the DSP Configurator Program.
Edit menu
PRELIMINARY
The Edit menu contains the following items:
•
Cut — Removes all parameters of a selected processor
block or set of selected blocks to the clipboard. If not
followed by a Paste command to a different block, the
parameters are restored.
•
Copy — Copies all parameters of a selected processor block, gain block, or set of
selected blocks to the clipboard.
•
Paste — Inserts processor blocks and their parameters from the clipboard into the
location selected.
NOTE: Processor blocks and their parameters can be pasted only into other blocks
of the same type. For example, the input 1 Filter block and all of its parameters
can be copied to the input 2 Filter block but not to the input 1 Delay block (see
Copying, Cutting, and Pasting Blocks on page 38 for more information).
View menu
The View menu contains the following items:
•
Meter Bridge — Opens a dialog box with real‑time
meters that monitor signal levels at each input and
output.
NOTE: Meter Bridge is available in Live mode only.
Figure 32. Meter Bridge Pop-up Window
AXP 64 C AT • DSP Configurator Configuration and Operation
28
•
Re-enable All Dialogs — Re-enables all pop-up dialog boxes that allow changes to
block parameters.
PRELIMINARY
•
AT Meters — Opens a dialog box containing a list of all AT devices on the AT bus. On
this list, double-click the name of the desired device to open its meters screen (see
figure 33).
Figure 33. AT Meters for an AXP 64
Tools menu
The Tools menu contains the following items and
submenus:
•
Configure Digital Inputs — Opens the digital
I/O ports utility. Five digital input ports can trigger
external events to up to ten outputs. Events can be
triggered from internal actions or external events
(see Digital I/O on page 62).
•
Connect to / Disconnect from Device
(depending on Emulate or Live mode) —
Performs the same functions as the Emulate and
Live mode buttons.
•
Device Manager — Opens the Device Manager dialog box. If a device is connected,
displays the details (model, MAC address, IP address). In addition, you can add,
remove, or clone a selected device and add new folders to an existing device.
•
Issue RESET Command — Initializes and clears the following: mix‑points, presets,
processor blocks, and gain blocks. This reset is identical to the E ZXXX} SIS
command (see SIS Configuration and Control beginning on page 81).
•
Organize Building Blocks — Organizes listed building blocks. You can also export
the building blocks file to use your set of building blocks on other computers or import
a building blocks file from another computer to use on yours (see Signal Path Building
Blocks on page 65).
AXP 64 C AT • DSP Configurator Configuration and Operation
29
•
Device Settings — Opens an information dialog box that provides details about your
AXP device (see figure 34) and shows its IP addresses (see figure 35).
PRELIMINARY
Figure 34. Device Settings Unit Info Tab
The screen displayed by clicking the Unit Info tab contains the unit name, firmware
version, model name, part number, and media access code (MAC) hardware address.
Only the Unit Name field can be edited. To rename the AXP 64 from this screen:
1. Click in the Unit Name field.
2. Type in a name for your AXP 64.
3. Click OK.
NOTE: The default name of each unit is AXP64 plus the last 6 characters of the
MAC address. This address appears on the Unit Info screen and on a label on
the rear panel (see Renaming connected AXP 64 C AT devices on page 17).
Figure 35. Device Settings IP Screen
The screen displayed by the clicking the IP Settings tab contains the IP address,
gateway address, subnet mask, and DHCP status of the computer running DSP. This
information is read-only.
AXP 64 C AT • DSP Configurator Configuration and Operation
30
PRELIMINARY
•
Options — Opens a tabbed dialog box in which you can customize the
DSP Configurator appearance and default operation.
Figure 36. Options Dialog Box
The following categories of DSP screen parameters and defaults are available:
•
Appearance — Lets you select a color scheme.
•
Complimentary Colors — Lets you tailor the appearance of the various graphs
and dialog boxes. Primary and secondary colors allows custom selection of colors
used with the graphs and dialog boxes.
•
Graph colors — Lets you change the row colors containing the information and
descriptions of signal graphs in the processor blocks.
•
Preferences — Lets you customize the default operation for the following options:
•
Auto Open Gains — True opens the gain dialogs when a mouse hovers over
the block.
•
•
Default Device — The startup splash screen contains options for selection
of the devices to connect to, or to Always ask on startup. The selection is
changed using Default Device.
Deletion Confirmation — Opens a confirmation prompt when deleting
processors.
•
Dynamics Meter Display — If Show Meters (below) is set to True, the
appearance of the dynamics meters can be tailored in order to use the full
meter to show input and gain reduction, or to show the level based on the
output and gain reduction.
•
Show Meters — True displays the dynamics meters wherever they are
available. False turns off all meters.
AXP 64 C AT • DSP Configurator Configuration and Operation
31
•
Processor Defaults — Lets you edit the defaults for the dynamics processor
blocks.
•
(Reset All Defaults) — Returns the AXP 64 C AT processor and level
control blocks to factory default conditions. Each processor and gain block also
has an individual default reset (see Defaults).
•
Defaults — Lets you individually select the default parameters for the selected
processor, Trim, or Gain blocks. Each row item contains default settings
customized for the processor, filter, or gain block it represents. Gain blocks
can be initially muted, while filter and dynamics processor blocks can be initially
bypassed.
NOTE: The bypass function is labeled Enable. Select Disabled to always
open the selected processor block in active (not bypassed) mode.
To view the individual processor defaults, press u to the left of the processor, Trim,
Gain, or meter device.
PRELIMINARY
To make selections from the Options dialog box:
Figure 37. Selecting Options on the Options Dialog Box
1. Access the available options for a category: click the + button in front of it (see
figure 37, 1). To access the selections available for each option within a category:
2. Click on the desired option in the left column (2). A down-arrow appears beside
the selected option in the right column.
3. When you click on an option, its name and description appear in the bottom panel
(3).
4. Click the arrow to display the drop-down list of selections (4).
5. Select the desired item from the drop-list (5).
•
Network Audio Control — Launches Dante Controller (see Dante Controller
Configuration and Operation, beginning on page 70).
AXP 64 C AT • DSP Configurator Configuration and Operation
32
Window menu
The Window menu contains the following items:
•
Cascade — Rearranges all open DSP
Configurator program screens, including
processor block dialog boxes, in a cascading,
overlapping array, starting at the upper-left corner
of the computer screen.
•
Close All Windows — Closes all open dialog boxes.
•
Open window names — The names of all open window are items on this menu. To
give a window priority (bring it to the front), select its name.
Help menu
PRELIMINARY
The Help menu contains the following items:
•
Contents — Opens the help file at the Contents tab.
•
Search — Opens the help file at the Search tab.
•
About — Opens a dialog box containing the name of
the software, the current version number, and copyright
information. Click Details to view additional information about the program. Click OK to
close the About window.
NOTE: You can also activate the help by pressing the <F1> key with any main
screen or dialog box displayed.
Navigating the Main Screen
There are two methods of navigation around the screen: keyboard and mouse.
Mouse navigation
•
Left-click — Click on a processor block to bring focus to the block, as well as other
elements such as tabs, sliders, and check boxes associated with the block. Other leftclick actions follow the Windows standard. In this user guide click always refers to a
left-click of the mouse button.
•
Right-click — A single right-click on a block brings up a context menu specific to that
processor block. Other right-click actions follow the Windows standard.
•
Double-click — Double-click on a box to open it from either the focused or unfocused
state of an element. Double-click always refers to the left mouse button.
Keyboard navigation
DSP Configurator is fully navigable using the computer keyboard. Some keyboard
navigation behavior matches Windows standards, while other behaviors are specific to
DSP Configurator. You can move focus to any screen element pressing the <Tab> and
arrow keys.
When the program starts, the Emulate button (2) is highlighted. Press the <Tab> key to
move focus between the Live and Emulate buttons and among the major sections of the
screen. The following keyboard functions are also available:
•
<Shift+Tab> — Reverses the direction of the <Tab> key function.
•
Arrow (navigation) keys — Within the sections, move the selection right, left, up, or
down between processor blocks.
AXP 64 C AT • DSP Configurator Configuration and Operation
33
•
<Enter> key — Opens the context menu or dialog box for a selected processor block
(same action as a mouse double-click). When an action button is highlighted, pressing
<Enter> executes the button action or toggles the button as applicable.
•
<Control> key shortcuts
•
•
<Ctrl+X> — Cuts the selected elements.
•
<Ctrl+C> — Copies the selected elements.
•
<Ctrl+V> — Pastes the selected elements from a previous cut or copy.
•
<Ctrl+A> — Highlights all processor blocks.
<Alt> key — <Alt> with certain letter keys lets you open and navigate the menu bar
menus. When the <Alt> key is pressed and released, the File menu is highlighted. Use
the navigation arrow keys to select a File menu item. When the <Alt> key is pressed
and held, the first letters in the menu bar titles (File, Edit, View, Tools, Window, or
Help) are underlined. Press the key corresponding to the underlined letter to open that
menu.
PRELIMINARY
When a task bar menu is open:
•
Use the up and down navigation arrow keys to move up and down through the menu or
submenu items.
•
Use the right arrow key to open a submenu (if applicable).
•
Use <Esc> to exit an active menu or submenu.
When the desired function is highlighted, press <Enter> to execute the operation.
Connecting to and Disconnecting from a Device on the Network
For you to upload (push) any configuration you create to your target AXP 64, or to edit a
configuration that has already been uploaded, your computer must be connected to the
device through the Dante network (Live mode).
Connecting to an AXP 64
1. On the menu bar, select Tools\Connect to Device. The Connect to device dialog
box opens.
Figure 38. Connect to Device Dialog Box
AXP 64 C AT • DSP Configurator Configuration and Operation
34
2. On the Dante Devices list, click the name of the device to which you want to connect.
3. Click OK. The Synchronize with Device dialog box opens.
4. Select the radio button for the method to synchronize the software with the device:
•
Pull data from device and update this configuration (default) — Select
this button to download settings from the device and synchronize it with
DSP Configurator. Current DSP Configurator settings are overwritten.
PRELIMINARY
•
Push the data from this configuration to device, overwriting any data
currently in it — Select this button to upload the DSP Configurator settings to
the device and overwrite its existing settings.
While the configuration data is being pushed to or pulled
from the device, the Transmit and Receive indicator boxes in
the Communication panel in the lower-right corner of the
DSP Configurator main screen blink green. When data
transfer is complete, the boxes remain black.
5. Click OK.
•
If a proper connection to the device is not established and the device cannot be
found, an error message appears, indicating that the application cannot connect to
the device.
•
If you selected the Pull Data method and the file you are working from has unsaved
information, a dialog box opens, asking whether to save the settings before
connecting to the device. Click Yes to open a Save dialog box and save the file, or
click No to continue without saving.
NOTE: You can also connect to a device by clicking the Live button in the upper-right
corner of the DSP Configurator window to switch from Emulate mode (disconnected
from a device) to Live mode (connected to a device).
Alternatively, you can press <F6> to switch between Emulate and Live modes (see Live
and Emulate Modes on the next page for more information).
Disconnecting from an AXP 64
When your computer is connected to a device, the Connect to Device item on the Tools
menu is replaced by Disconnect from Device. To disconnect from a device:
1. On the menu bar, select Tools\Disconnect from Device. A prompt opens.
2. Click OK to disconnect. Click Cancel if you want to remain connected to the device.
NOTE: You can also click Emulate or press <F6> to disconnect from the device (see
Live and Emulate Modes).
AXP 64 C AT • DSP Configurator Configuration and Operation
35
Live and Emulate Modes
The AXP 64 C AT has two operating modes in DSP:
•
Emulate mode — In this mode, the AXP 64 C AT is offline from the computer running
DSP. You can configure the AXP via DSP on the computer, then upload (push) the
settings to the unit after switching it to Live mode. Additionally, you can back up the
current settings on the AXP 64 (blocks, input and output names, and so on) to a
configuration file for archiving.
•
Live mode — In this mode, the AXP 64 is online to the computer running DSP. Using
DSP you can connect to the AXP and make live parameter adjustments while hearing or
metering them in real-time. This avoids the need to compile and upload a configuration
file to the DSP.
In addition, you can push a configuration created in Emulate mode to the AXP or pull
the current configuration data on the AXP to update the configuration being created.
To switch modes, click the Live or the Emulate mode button in
the upper-right corner of the main screen and follow the
instructions in the subsequent dialog boxes (see Starting the
DSP Configurator for more information).
PRELIMINARY
Naming a Digital Input or an Analog Output using DSP Configurator
Using the label fields for inputs 1 through 4 or the analog output label fields on the DSP
Configurator main screen, you can change the name of a digital input or an analog output.
By default, all inputs are analog and the names in their labels have the format Mic/Line In
#n. The analog outputs have the default name format of ANALOG-OUT-0n.
NOTE: For input and output renaming, the AXP must be in Live mode (see Live and
Emulate Modes).
To rename an input or output using DSP:
1. Ensure that the AXP is in Live mode.
2. If renaming an input, ensure that it is digital (see Switching an Input between Analog
and Digital on page 42 to change an analog input to digital).
NOTE: Only digital inputs can be renamed. Because inputs 5 and 6 are analog only,
they cannot be renamed.
3. Click in the label field of the input or output to be renamed. The field becomes editable
with a cursor.
4. Enter the new input or output name in the label field. The name text is red when first
entered.
5. Press <Enter>. The new label text color changes to its original color.
AXP 64 C AT • DSP Configurator Configuration and Operation
36
DSP Processing and Signal Flow
All signal processing, filtering, and level control (gain, trim, and attenuation) is done via
software from a computer connected to the AXP 64 C AT via the Ethernet port. The DSP
Configurator program provides complete control while SIS commands provide limited
control (see SIS Configuration and Control, beginning on page 81, for information on SIS
commands). DSP control is provided via level, filter, and processor blocks within the signal
chain. Figure 39 shows the signal flow and DSP processing per signal chain.
PRELIMINARY
Figure 39. DSP Processing and Signal Flow
Each AT channel has two level control blocks, a filter block, and three signal processor
blocks. Each analog output channel has a trim block, a level control block, a filter block, and
three signal processor blocks.
Filter and processor blocks (2 and 3, respectively) must be placed in the signal chain to
perform specific tasks. Level control blocks (1) do not have to be inserted, they are always
active. Processor and filter blocks are pass‑through (inactive) until inserted.
AXP 64 C AT • DSP Configurator Configuration and Operation
37
Copying, Cutting, and Pasting Blocks
You can cut or copy any single processor, filter, or level (gain, trim, or attenuation) block or
string of blocks to the clipboard, then paste them onto the same type of block or blocks
in the same or a different signal path. When you paste a block onto another block, the
parameters of the cut or copied block are applied to the target block.
NOTES:
• Blocks are not removed from the processor stream after a Cut and a subsequent
Paste operation. Only their parameters are copied or removed.
• Blocks whose parameters are cut or copied must be compatible with the target
blocks to which they are pasted. For example, an input Gain block can be copied
only to another input Gain block and an output Gain block can be copied only to
another output Gain block.
Use any of the following methods to copy, cut, and paste:
•
Keyboard: Press <Ctrl+X> to cut, <Ctrl+C> to copy, or <Ctrl+V> to paste.
•
Context menu: Right-click on a block and select Copy, Cut, or Paste from the menu
that pops up.
•
Menu bar menu: Select Copy, Cut, or Paste from the Edit drop-down menu.
To copy blocks to other equivalent blocks:
PRELIMINARY
1. To select a single block to copy, click on it.
To select a group of adjacent blocks, click on the main screen background and drag
the mouse to form a box around the blocks to be copied (see figure 40). The selected
blocks are highlighted in green.
Figure 40. Selecting a Signal Path to Copy
2. Press <Ctrl+C> or select Edit/Copy from the menu bar to copy the blocks to the
clipboard.
3. Click on the first block of the input row or rows to which the signal path will be copied
(see figure 41). If selecting multiple rows, click on the upper-leftmost block.
Figure 41. Selecting the Paste Location
In the example in figure 41, the green outline on the input 4 AEC block indicates that its
row was selected as the paste target.
AXP 64 C AT • DSP Configurator Configuration and Operation
38
4. Paste the clipboard elements to the selected location.
NOTE: The elements can be pasted to multiple locations. To copy the latest item
on the clipboard to an additional location, click on the leftmost block in the new
location and paste the item again.
5. A prompt warns that all settings in the section will be overwritten:
Figure 42. Block Overwrite Confirmation Prompt
Click Yes.
PRELIMINARY
In the example in figure 43, the input 4 processing path is now identical to the input 1
path that was copied to it, including signal levels, parameters settings, and mute or
bypass selections.
Figure 43. Input 1 Blocks Copied to Input 4
NOTE: If you attempt to copy a block to an incompatible one, the following error
message appears, saying that the action cannot be completed.
Figure 44. Error Message for an Incorrect Block Paste Attempt
AXP 64 C AT • DSP Configurator Configuration and Operation
39
Managing Filter and Processor Blocks
Unlike level control blocks, which are always active and cannot be added or removed, you
can perform the following on processor and filter blocks:
•
Inserting — To insert a block, either:
•
Right-click the desired block, select Insert from the context menu, then select the
desired processor or filter from the Insert submenu.
•
Double-click the block and click the desired processor or filter from the context
menu.
•
Removing — Right‑click on an active block and select Delete from the drop-down
menu, or select the block and press <Delete> on the keyboard. This sets the
parameters back to default and removes (bypasses) the block.
•
Replacing — To replace an active block, right‑click on the block and select Insert
from the context menu. From the Insert submenu, select the desired processor. A
confirmation prompt appears, asking if you want to overwrite the previous processor.
•
Bypassing — Processors are bypassed by default. Signal flow passes through the
block without processing, regardless of the processor settings. Remove the bypass to
allow the signal processing according to the parameter settings available on the block.
PRELIMINARY
A red box in the lower left corner of the block (shown in the High Pass filter block in
figure 45) indicates that a processor block has been inserted, but is bypassed.
Figure 45. Bypass Indicator in a Signal Chain
Changing Block Parameters
To edit the parameters of a level control block or a filter
or processor block that has been inserted in the signal
chain:
1. Double-click on the block that you want to modify.
A dialog box opens in which you can change the
parameters of the block. The contents of the dialog
box vary with the type of block. The illustration at
right shows an example of a Limiter processor
dialog box.
2. In the dialog box, make all desired changes to the
block.
NOTE: If you want the block to be applied to
the signal, click the red Bypass button to
deselect it. The button becomes the color of
the dialog box background.
3. When finished, click the OK button at the bottom of
the box to save your changes.
Click Cancel if you want to discard the changes.
AXP 64 C AT • DSP Configurator Configuration and Operation
40
Input Channels
The AXP 64 has six mono line input channels. The first four channels can access either
the associated rear panel analog input or the AT digital channel input assigned by Dante
Controller (see Dante Controller Configuration and Operation beginning on page 70).
Level controls and processing blocks described in the following sections are identical
for inputs 1 through 4 (see the example in figure 46). (Inputs 5 and 6 do not have AEC
processing blocks).
Pre-processing Out
Digital Input
or
Analog Input
ANG
GAIN
FILT
AEC
DYN
DYN
GAIN
Output
AEC Reference
Figure 46. Input Processing Blocks for Inputs 1 through 4
PRELIMINARY
Input signal chain elements from left to right are:
•
Gain (GAIN), Inputs 1-4 — Mono mic/line gain control with a range from -18 to
+80 dB includes a mute button, polarity switch (+ and -), phantom power on and off,
and a mono meter that displays the post-fader audio level in dBFS. Step resolution is
0.1 dB. Gain control and mute are both pre-meter. The input is selectable between the
analog rear panel inputs and a digital AT bus input.
•
Gain (GAIN), inputs 5 and 6 — These inputs have the same elements as inputs 1
through 4 except that the phantom power on and off switch and digital input switch are
not available.
•
Filter (FILT) — Up to five filters can be inserted in any combination of High Pass, Low
Pass, tone (Bass & Treble shelving), and Parametric EQ.
•
Acoustic Echo Cancellation (AEC) — One acoustic echo canceller processor for
each of mic/line inputs 1 through 4. Each AEC block includes meters for ERL, ERLE,
and TER, plus controls for non-linear processing. The block also provides a noise
cancellation on and off switch and level control. The reference can be selected for each
AEC block by routing the reference using Dante Controller.
•
Dynamics (DYN) — Two per input channel. Dynamics processors vary the dynamic
level (the range of loudest to softest signals) of the input signal. Available processor
selections are AGC, compressor, limiter, and noise gate. Only one of each type of
Dynamics processor can be inserted per Dynamics block.
•
Gain (GAIN) — One post-processing gain control per channel with a range of -100 dB
to +12 dB includes a mute button. The step resolution is 0.1 dB.
AXP 64 C AT • DSP Configurator Configuration and Operation
41
Switching an Input between Analog and Digital
The first four inputs can be configured as either analog or digital
(they are analog by default). To change the type of an input:
1. Double-click on the gain block (Ang Gain or Dig Gain) for
the input to be changed (must be input 1 through 4).
Figure 47. Input Gain Block Selected
The Input Gain dialog box opens.
2. At the bottom of the dialog box, select the Digital Input
checkbox (1 in the illustration at right) to set the input to
digital or deselect the checkbox to set the input to analog.
3. Click OK to close the dialog box. The input gain icon changes
ANG
GAIN
DIG
GAIN
ANG
GAIN
from ANG GAIN
(analog) to DIG GAIN
Analog
Digital
vice versa to reflect
your
selection.Analog
Input
Input
Input
DIG
GAIN
Digital
Input
(digital) or
PRELIMINARY
Input Gain
Each input gain block provides control to accommodate consumer and professional analog
and digital line level sources and microphones.
Double-click a
gain block.
1
2
2
1
3
3
NOTE: In Emulate mode (the
startup mode), the input
level display meter is not
operational.
Analog Input
-or-
Digital Input
Figure 48. Mic/Line Input Gain Controls
•
Gain fader — The Input Gain block dialog box contains a mono long‑throw fader to
adjust gain. The range differs depending on whether the input is analog or digital.
•
For an analog source the range is –18 to +80 dB.
•
For a digital source the range is –18 to +24 dB. Step resolution is 0.1 dB.
AXP 64 C AT • DSP Configurator Configuration and Operation
42
To adjust the gain, use any of the following methods (see figure 48 on the previous
page):
•
•
Click and hold the fader handle (1), then drag it up or down to the desired level in
0.1 dB steps.
•
Click in the fader panel (2) or press <Tab> until the fader panel is outlined, then
press the <up arrow> or <down arrow> key to reach the desired level in 1 dB
steps. Pressing <Page Up> or <Page Down> increases or decreases the level in
10 dB steps.
•
Click in or tab to the signal level readout field (3). Type a new dB level value, then
press <Enter> or <Tab> to another area.
Phantom Power checkbox — Select this checkbox if a connected microphone requires
phantom power (+48 VDC).
•
Digital Input checkbox — Select this checkbox to switch the input between analog
and digital (AT channel). See Switching an Input between Analog and Digital on the
previous page for more information.
The digital source is selected by Dante Controller (see Selecting Inputs and Outputs
for Dante on page 76).
Filter Blocks — Input
PRELIMINARY
Each line input channel filter block allows up to five filters to be added.
Inserting a filter
1. Double-click the FILT block for the desired input to display the filter type context menu.
Alternatively, right-click the input filter block to display the block context menu, then
select Insert from the block menu to display the filter type submenu (see figure 49).
Figure 49. Inserting a Filter
2. From the filter context menu, select one of the four types: High Pass, Low Pass, Bass &
Treble, or Parametric. The selected filter is added to the block.
When the filter is added, the block name changes to reflect the name of the filter. In the
example in figure 50, a High Pass filter was inserted in the input 1 signal chain.
Figure 50. Filter Added to an Input
AXP 64 C AT • DSP Configurator Configuration and Operation
43
3. After inserting the filter, double-click the filter block to open the filter setup dialog box.
PRELIMINARY
When the dialog box first opens, the Bypass button to the right of the filter name is
highlighted in red, indicating that the filter is bypassed.
Figure 51. Filter Block Dialog Box
Setting up a filter
To edit a filter or to add more filters, open the filter block dialog box, then:
•
Select the number of the filter to edit and enter your changes in the editable fields of the
dialog box.
•
Select a filter type from the drop-down filter selection list in any unused filter row in the
dialog box.
Each filter loads with all applicable default parameters displayed in its row.
Figure 52. Filter Dialog Box, Filters Added
AXP 64 C AT • DSP Configurator Configuration and Operation
44
Focusing a filter
PRELIMINARY
Within the dialog, a filter is focused when a filter type is inserted. In figure 53, filter box 3
is highlighted in green, indicating it is the filter in focus. The filter in focus (independent of
other filters) appears in the graph as a dotted line of the same shade as its filter row when
bypassed. When the filter is active (not bypassed), the line is solid.
Figure 53. Filter Dialog Box, Filter Not Bypassed
With multiple filters enabled, the graph indicates the focused filter result (independent of
other filters) in the color of the filter row in the table. The composite response of all active
(not bypassed) filters is always a red line.
Above the graph, each filter has a “handle” (the filter number in a circle that is outlined in red)
directly above the cutoff or center frequency. The handle number corresponds to the filter
row number in the table below the graph.
To bring focus to a filter, do either of the following:
•
Click in the numbered box to the left of the filter selection drop-down list.
•
Click on the handle of the filter at the top of the graph.
Adjusting the filter frequency
To raise or lower the frequency of the filter, do either of the following:
•
Click and drag the filter handle horizontally along the top of the graph to move the cutoff
or center frequency to a new position along the X axis. As you drag the handle, the
Frequency field for the selected filter changes to reflect the current frequency.
•
Click in the Frequency field in the desired filter row, type the frequency number, and
press <Enter> on the computer keyboard.
AXP 64 C AT • DSP Configurator Configuration and Operation
45
Parametric (equalizer) filter
A filter block can have up to five parametric filters inserted. Each parameteric filter can be
set to a different frequency, creating a 5-band parametric equalizer. The control boosts
or cuts the center frequency by up to 24 dB, and by changing the Q value, the range of
affected frequencies is widened or narrowed around the center frequency. In general, as Q
increases, the affected bandwidth narrows.
PRELIMINARY
To demonstrate how Q affects the filter, see figure 54. The filter shown here contains five
parametric filters centered at different frequencies but with the same Q of 1.0. The filter
in focus (filter 3 in figure 54) has a center frequency of 1000 Hz boosting that frequency
+12 dB over a Q of 1.0. Note the markers on either side of the peak frequency are at
300 Hz on the left and 3000 Hz on the right, a bandwidth of about 2700 Hz.
Figure 54. Parametric Filter Dialog Box, 1000 Hz
AXP 64 C AT • DSP Configurator Configuration and Operation
46
PRELIMINARY
Figure 54 on the previous page shows the frequency curve for the single active filter. To add
its effect to the overall frequency response, remove the bypass on the other filters, as shown
in figure 55. The overall frequency response is now a solid red line.
Figure 55. All Parametric Filters Active
The parametric filter allows frequency selection accurate to 0.1 Hz and + 24 dB of slope.
High Pass filter
The high pass filter is the opposite of the low pass filter. All frequencies below the specified
frequency are attenuated allowing higher frequencies to pass.
In figure 56, the frequencies lower than the specified frequency of 1 kHz are attenuated,
leaving the higher frequency response flat.
Figure 56. High Pass Filter Response Curve
AXP 64 C AT • DSP Configurator Configuration and Operation
47
Low Pass filter
The low pass filter is the opposite of the high pass filter. All frequencies above the specified
frequency are attenuated allowing lower frequencies to pass.
PRELIMINARY
In figure 57, the frequencies higher than the specified frequency of 10 kHz (10000 in the
Frequency field) are attenuated, leaving the lower frequency response flat.
Figure 57. Low Pass Filter Response Curve
The frequency range of the both low and high pass filters is 2000 Hz to 20 kHz with
selectable slope of either 6 or 12 dB per octave.
Bass and treble shelving
Bass and treble shelving are added to the filter as shown in figure 58. Adding the shelving
filter inserts both bass and treble controls. If only a bass or only a treble filter is required,
either bypass the unneeded control or set it to Unused in the selection box.
Figure 58. Bass and Treble Shelving
AXP 64 C AT • DSP Configurator Configuration and Operation
48
The corner frequency of the controls can be set to within 0.1 Hz accuracy. From the Slope
menu you can select 6 or 12 dB/octave to set how rapidly the frequencies attenuate or
boost. The filters can be boosted or cut up to 24 dB.
Acoustic Echo Cancellation (AEC)
The AXP 64 C AT provides one acoustic echo cancelling processor for inputs 1 through 4.
A single reference is selected for each AEC block. The reference signal input is listed on the
Dante Controller routing view and is selected using Dante Controller.
About AEC
Echo occurs when audio from a talker in the far end is received and amplified into the near
end room of the listener. That sound is then picked up by microphones in the near end
acoustic space and sent back to the far end. The amount of signal sent back to the far end
talker can be substantial. With the added transmission delay, the result is an echo effect that
seriously compromises communication in a teleconference or video conference.
The AEC processor compares the received signal from the far end (designated as the
“reference”) to the near end mic channel and creates an adaptive filter to cancel the
potential echo before it is sent back to the far end.
PRELIMINARY
AEC setup
Successful operation of the AEC processing block is a function of proper gain structure and
selection of the AEC reference. This section provides an overview of the two elements.
Proper gain structure involves the relationship between the signal at the selected reference
and the signal at the mic input, within the context of proper levels for the reference and mic
inputs independently. The mic input gain setting is naturally optimized for the voice level of
the talker in that room; therefore the amount of signal from the far end picked up by the mic
is dependent on how much that far end signal is amplified in the near end room and the
distance from the mic to the speakers.
The reference signal is the signal received from the far end, which is ultimately sent to a
sound reinforcement system within the near end room.
AEC dialog box
The AEC dialog box contains a number of meters and indicators
that are essential for setting up gain structure and monitoring
activity. Noise Cancellation, part of the AEC processor, can be
selected and adjusted here.
Activity indicators
•
Far – Lights when activity is detected from the remote site.
•
Near – Lights when activity is detected from the local site.
•
Update – Lights when the AEC is updating, converging, or
reconverging.
AXP 64 C AT • DSP Configurator Configuration and Operation
49
Meters
•
ERL — Displays the ratio in dB between the signal at the reference and the signal at the
AEC channel input. When ERL is a positive number, the signal level at the AEC channel
input is lower than the signal at the selected reference (0 through +15 dB is desirable).
•
ERLE — Displays the amount in dB of potential echo signal that the AEC algorithm
cancels, not including NLP processing (see Non-linear Processing (NLP) Controls
on the next page).
•
TER — Displays the sum of ERL + ERLE in dB.
Configuring and optimizing AEC
AEC must be configured correctly for optimum performance. To configure AEC:
1. Optimize the active microphone input gain levels for local voice reinforcement.
2. Insert an AEC block on each microphone input using one of the following methods:
•
Double-click the AEC (filter) block in the DSP Configurator workspace.
•
Right-click the AEC block to open the context menu and select Insert AEC.
•
Click the AEC block to select it (or use the arrow keys to navigate to the AEC block)
and press <Enter>.
3. For each AEC block, do the following:
PRELIMINARY
a. Double-click the AEC processor block to open its dialog box.
b. Select the reference (preferably the VTC input) from the Reference menu.
c. Click Bypass to disengage bypass and activate AEC.
4. Mix the VTC input to the local room amplifier output, adjusting output volume to a
suitable level.
5. Open the AEC block and ask the person on the far end to begin speaking.
Verify the FAR indicator responds to the voice (see Activity indicators on the previous
page).
6. Adjust the input level of the reference so the ERL meter indicates between 0 and 15 dB.
•
If ERL is too high, lower the reference level.
•
If ERL is too low, raise the reference level.
NOTE: Do not adjust Noise Cancellation (set to On by default) or advanced AEC
settings. These settings are optimized for typical installations and generally do not
need adjusting.
Troubleshooting AEC
•
Verify you are using the correct reference.
•
Are the appropriate signals mixed into the reference?
•
If you are using an output as a reference, be certain the output volume has not
been adjusted.
•
Check gain staging of the microphones. Be certain you are receiving a strong signal in
the -30 to -20 dB range.
•
Check the ERL level. If necessary, readjust with the input reference level.
AXP 64 C AT • DSP Configurator Configuration and Operation
50
Reference menu
The Reference drop-down menu lists the
inputs and outputs for your AXP 64. From
this menu, select the input or output that will
produce the reference signal received from the
far end.
Noise Cancellation
The noise canceller detects steady state noise,
such as HVAC or other continuous system
noise, and effectively removes it without causing
audible artifacts.
Select the Noise Cancellation checkbox to enable noise cancellation or clear the box to
disable it. The range of noise cancellation settings is 0.0 to 20.0 dB in 0.1 dB increments.
The default setting is On and set to 15 dB of noise attenuation.
Advanced AEC Controls
Click the open/collapse icon at the bottom of the AEC dialog box to reveal the advanced
AEC controls. The following controls are available:
PRELIMINARY
Non-linear Processing (NLP) Controls
•
Enable NLP ­— This box is selected by default. NLP is
necessary for the removal of echo.
•
NLP Presets — Click Soft, Normal, or Aggressive to
load a set of values to the three NLP parameters: Max NLP
Reduction, Attack Time, and Release Time.
The default parameters (shown at right) match the Normal
preset.
•
Max NLP Reduction — The maximum possible reduction
in echo artifacts that can be applied. The range is 0.0 to
80.0 dB in 0.1 dB increments. The default is 64.0 dB.
•
Attack Time — The speed in which NLP is applied. The range is 0.0 to 100.0 msec in
0.1 msec increments. The default is 6.0 msec.
•
Release Time — The speed in which NLP is released. The range is 1.0 to
3000.0 msec in 0.1 msec increments. The default is 150.0 msec.
Additional controls
•
Double Talk Echo Reduction — Sets the amount of echo reduction applied during
double-talk. The range is 0.0 to 20.0 dB in 0.1 dB increments. The default is 15.0 dB.
•
Comfort Noise — Sets a comfort noise level in dB to eliminate states of complete
silence, which could be perceived as a failed connection. The range is 0.0 to 40.0 dB
in 0.1 dB increments. The default is 0.0 dB (comfort noise off).
AXP 64 C AT • DSP Configurator Configuration and Operation
51
Dynamics Processor Blocks
A dynamics processor alters the dynamic range of an audio signal, that is, the difference
between the loudest to the quietest portions. Each input channel has two dynamics
processor blocks in which you can insert the following types of processor: AGC,
Compressor, Limiter, or Noise Gate.
Adding a dynamics processor
To add a dynamics processor to a block:
PRELIMINARY
1. Double-click the block and select the processor from the processor context menu.
Alternatively, right-click on the block, select Insert from the block context submenu, then
select the processor from the dynamics processor context menu (see figure 59).
Figure 59. Inserting a Dynamics Processor
2. After inserting the dynamics processor, double‑click the processor block to open its
dialog box.
3. Make any desired changes to the parameters. The values for each parameter is
displayed in its text field. The values can be adjusted in 0.1 increments (see the
Dynamic processor parameters table on the next page).
Set the parameters by any of the following methods:
•
Click in the text box and type a value or replace existing text. Press <Enter> or
<tab>, or <click> in another field.
•
Threshold, gain or attenuation, target, and ratio parameters have adjustment points
on the graph display. Use the mouse to click and drag the graph point to the
desired destination or value.
•
All time values have a horizontal slider allowing adjustment in 1 ms increments.
Click and drag the slider handle until the desired value is displayed in the text field,
or focus on the slider, then press the left or right arrow key to increase or decrease
the value.
Clicking the <Page Up> and <Page Down> keys adjusts values in increments of
10 ms.
•
For comparison, you can bypass the block by clicking Bypass in its dialog box so
that the Bypass button becomes red.
AXP 64 C AT • DSP Configurator Configuration and Operation
52
Dynamics processor parameters
The following table lists each dynamics processor type, its parameters, and its factory
default settings.
Parameter
Threshold
Max Gain
Defaults
AGC
Compressor
Limiter
Gate
-40.0 dB
-30.0 dB
-10.0 dB
-65.0 dB
12.0 dB
Target
-10.0 dB
Window
12.0 dB
2.0 :1
Ratio
Attack Time
Hold Time
Release Time
20.0 :1
500.0 ms
5.0 ms
2.0 ms
1.0 ms
0.0 ms
100.0 ms
64.0 ms
300.0 ms
1500.0 ms
100.0 ms
64.0 ms
1000.0 ms
25.0 dB
Max. Attenuation
Off
Soft Knee
Off
PRELIMINARY
Details of the individual dynamics blocks and their dialog boxes are provided in the following
sections.
AGC (Automatic Gain Control)
AGC adjusts the gain level of a signal based on
input strength to achieve a more consistent
volume. Below the set threshold, the signal is not
affected. Above the threshold, weaker signals
are boosted up to the maximum gain setting to
reach a user‑defined target level. As the signal
level approaches the target level it receives
less gain or no gain at all. When the signal level
reaches the target level all gain is removed.
•
Threshold — The input level at which
maximum gain is applied after the attack
time is exceeded. On the graph at right
follow the red input level from the lower
left to -40 dB where the first red circle is.
Signal levels less than -40 dB remain at their
original levels. Signal levels at or exceeding
-40 dB have up to 12 dB of gain applied
(Maximum Gain). The Threshold level range
is -80.0 to 0.0 dB, increased or decreased
in 1.0 dB increments by pressing the up or
down arrow key. The default is -40.0 dB.
•
Maximum Gain — The highest amplification
applied to a signal exceeding the threshold
and up to the lower limit of the window (see
the Window adjustment, below). The Maximum Gain range is 0.0 to +60 dB, increased
or decreased in 1.0 dB increments by pressing the up or down arrow key. The default is
12.0 dB.
AXP 64 C AT • DSP Configurator Configuration and Operation
53
•
Target — The desired average signal level of the output when AGC is applied.
AGC can vary the gain according to the input signal level, specified target level and
maximum gain. As the signal approaches the target level of – 10 dB, gain is reduced
until at – 10 dB, gain is no longer applied. The Target level range is -40 dB to 0.0 dB,
increased or decreased in 1.0 dB increments by pressing the up or down arrow key.
The default is – 10.0 dB.
•
Window — Indicated by two green lines, Window is a specified range above and below
the target level. Below the lower line maximum gain is always applied to the signal.
When the signal reaches the window, gain control begins scaling in a linear fashion to
achieve smoother results as the signal reaches the target level. The Window range can
be from 0.0 dB to 20.0 dB, increased or decreased in 1.0 dB increments by pressing
the up or down arrow key. The default window range is 12.0 dB.
•
Attack Time — Adjusts the time delay for AGC to engage after the input signal level
reaches or exceeds the threshold level. The Attack Time range is 0.0 to 3000.0 ms,
PRELIMINARY
increased or decreased in 1.0 ms increments by pressing the up or down arrow key.
The default is 500.0 ms.
•
Hold Time — Adjusts how long AGC continues to boost the signal after the input signal
drops below the threshold and before release time begins. The Hold Time range is
0.0 to 3000.0 ms, increased or decreased in 1.0 ms increments by pressing the up or
down arrow key. The default is 0.0 ms.
•
Release Time — Adjusts the time it takes to return the signal to normal (unprocessed)
levels after the signal no longer exceeds the threshold level setting. Release time begins
only after hold time is reached. The Release Time range is 10.0 to 10000.0 ms,
increased or decreased in 1.0 ms increments by pressing the up or down arrow key.
The default is 1500.0 ms.
Compressor
The compressor regulates signal level by
reducing the dynamic range of the input
signal above a specified threshold. The
input to output level ratio determines the
reduction in the dynamic range beyond
the threshold setting. For example, in the
illustration at right, with a ratio setting of
2:1, for every 2 dB of input above the
threshold, the compressor outputs 1 dB.
Compression is commonly used to
contain mic levels within an acceptable
range for maximum vocal clarity. A
compressor makes louder portions of
a signal softer, while increasing softer
signals to raise them further above the
noise floor, as follows:
•
The dynamic range can be reduced
by compressing the signal above
the threshold while raising the
post‑compressor gain or trim
(referred to as “make‑up gain”).
•
The input signal can be increased
while the compression ratio
above the threshold is increased
correspondingly to prevent clipping.
AXP 64 C AT • DSP Configurator Configuration and Operation
54
Compression can also protect a system or a signal chain from overload similar to a limiter.
•
Threshold — The input signal level above which compression begins (subject to attack
time) and below which compression stops (subject to hold and release time). The
Threshold level range is -80.0 to 0.0 dB, increased or decreased in 1.0 dB
increments by pressing the up or down arrow key. The default is -30.0 dB.
•
Ratio — The input signal level reduction when compression is engaged. The Ratio
range is 1.0 to 100.0, increased or decreased in 1.0 increments by pressing the up or
down arrow key. The default is 2.0:1.
•
Attack Time — Adjusts the time delay for compression to engage after the input signal
level reaches or exceeds the threshold level. Attack time adjustment range is 0.0 to
200.0 ms, increased or decreased in 1.0 ms increments by pressing the up or down
arrow key. The default is 5.0 ms.
•
Hold Time — Adjusts how long signal level reduction continues after the input signal
drops below the threshold and before release time begins. The Hold Time range is 0.0
to 500.0 ms, increased or decreased in 1.0 ms increments by pressing the up or down
arrow key. The default is 100.0 ms.
•
Release Time — Adjusts the time required to return the signal to normal (unprocessed)
PRELIMINARY
levels after the signal no longer exceeds the threshold level setting. Release time begins
only after hold time is reached. The Release Time range is 10 to 1000.0 ms, increased
or decreased in 1.0 ms increments by pressing the up or down arrow key. The default is
100.0 ms.
•
Soft Knee — Select the Soft Knee checkbox to smooth and soften the transition from
uncompressed to compressed output levels.
Limiter
The limiter restricts the input signal level by
compressing its dynamic range above a
specified threshold. It is most commonly used
to prevent clipping, protecting a system against
component or speaker damage. While the limiter
is closely related to the compressor, it applies a
much higher compression ratio of ∞:1. The ratio
is fixed and cannot be changed.
•
Threshold — The input signal level above
which limiting begins (subject to attack
time) and below which compression
stops (subject to hold and release time).
The Threshold level range is -80.0 to
0.0 dB, increased or decreased in 1.0 dB
increments by pressing the up or down
arrow key. The default is -10.0 dB.
•
Attack Time — Adjusts the time delay
for limiting to engage after the input signal
level reaches or exceeds the threshold
level. The Attack Time range is 0.0 to
200.0 ms, increased or decreased in
1.0 ms increments by pressing the up or
down arrow key. The default is 2.0 ms.
•
Hold Time — Adjusts how long signal level reduction continues after the input signal
drops below the threshold and before release time begins. The Hold Time range is 0.0
to 500.0 ms, increased or decreased in 1.0 ms increments by pressing the up or down
arrow key. The default is 50.0 ms.
AXP 64 C AT • DSP Configurator Configuration and Operation
55
•
Release Time — Adjusts the time it takes to return the signal to normal (unprocessed)
levels after the signal no longer exceeds the threshold level setting. Release time begins
only after hold time is reached. Release time range is 10 to 1000.0 ms, increased or
decreased in 1.0 ms increments by pressing the up or down arrow key. The default is
50.0 ms.
•
Soft Knee — Select the Soft Knee checkbox to smooth and soften the transition from
uncompressed to compressed output levels.
Noise Gate
PRELIMINARY
The noise gate allows an input signal to pass
only when it exceeds a specified threshold
level. Above the threshold level, the signal
passes unprocessed; below the threshold the
signal is attenuated at the rate set by the ratio
adjustment. The typical setting of the noise gate
threshold is just above the noise level of the
environment or source equipment. That allows
signals above the noise to pass and attenuates
the noise when there is no signal to eliminate
background noise.
•
Threshold — The input signal level below
which attenuation (gating) begins (subject
to attack time) and above which gating
stops (subject to hold and release time).
The Threshold level range is -80.0 to
0.0 dB, increased or decreased in 1.0 dB
increments by pressing the up or down
arrow key. The default is -65.0 dB.
•
Max Attenuation — The maximum
attenuation of the signal when it drops
below the threshold. The Maximum
Attenuation is adjusted from 0.0 to
80.0 dB, increased or decreased in 1.0 dB increments by pressing the up or down
arrow key. The default is 25.0 dB.
•
Ratio — is the input signal level reduction when gating is engaged. The Ratio range is
1.0 to 100.0, increased or decreased in increments of 1.0 by pressing the up or down
arrow key. The default is 20.0:1.
•
Attack Time — The time delay for gating to engage after the input signal level drops
below the threshold level. The Attack Time range is 0.0 to 200.0 ms, increased or
decreased in 1.0 ms increments by pressing the up or down arrow key. The default is
1.0 ms.
•
Hold Time — Adjusts how long gating continues after the input signal drops below the
threshold. If the signal is still below the threshold when hold time ends, release time
begins. The Hold Time range is 0.0 to 500.0 ms, increased or decreased in 1.0 ms
increments by pressing the up or down arrow key. The default is 300.0 ms.
•
Release Time — Adjusts the time it takes to return the signal to normal (unprocessed)
levels after the signal is no longer below the threshold level setting. Release time begins
only after hold time is reached. The Release Time range is 10 to 1000.0 ms, increased
or decreased in 1.0 ms increments by pressing the up or down arrow key. The default is
1000.0 ms.
AXP 64 C AT • DSP Configurator Configuration and Operation
56
Output Channels
PRELIMINARY
Figure 60. Output Channels and Blocks
Two AT Outputs sections provide signals on the AT bus as Dante transmitter channels
(see figure 60, 2 and 3) and appear to a Dante Controller as transmitters. Audio from
these outputs is always available to Dante compatible devices on the same network.
Unless renamed, the four pre-processed outputs (2) appear in the Dante transmitter
list as PRE‑OUT-01 through PRE-OUT-04). The AXP 64 C AT output lines (3) appear
as transmitter lines (ATOUT 01 through ATOUT 06 in figure 75 on page 71). Both the
pre-processed and the post-processed outputs (Dante transmitters) can be connected to
any Dante device receiver.
In addition, the Outputs section (7) contains four mono or two stereo line output channels
for balanced and unbalanced analog output. These channels appear on the Dante network
as Dante receivers. The channel controls and processing blocks described in this section
are identical for each of these four analog outputs.
The following sections describe the blocks and dialog boxes available for the outputs.
AXP 64 C AT • DSP Configurator Configuration and Operation
57
AT Output Gain (GAIN)
The post-processing output gain control (see figure 60, 1, on
the previous page) provides gain following the input processing
signal chain. It includes a mono long-throw fader with – 100.0 to
+12.0 dB gain range, and a current level setting readout below the
fader. Fader adjustments are in 1 dB increments. Adjustments can
be entered manually to 0.1 dB resolution.
The default is unmuted at unity (0.0 dB) gain.
Adjust the output signal level using any of the following methods:
•
Click and drag the fader handle to the desired level in 1.0 dB
steps.
•
Select or tab to the fader handle, then press the up and down
arrow keys to set the desired level in 1 dB steps. Pressing
<Page Up> and <Page Down> adjusts the level in 5 dB steps.
•
Click in or tab to the level readout field. Type a new value, then
press <Enter> or press <Tab> move to another area.
Analog Output Blocks
PRELIMINARY
The following blocks can be added to the analog output signal chain.
Trim control (TRIM)
The Trim control block provides fine adjustment of the gain. It
includes a mono long-throw fader with a – 12.0 to +12.0 dB gain
range, and a current level setting readout below the fader. Fader
adjustments are in 0.1 dB increments. The default is unmuted at
unity gain (0.0 dB).
To fine-tune the program material prior to the output signal chain,
use any of the following methods:
•
Click and drag the fader handle to the desired level in 1.0 dB
steps.
•
Select or tab to the fader handle, then press the up and down
arrow keys to set the desired level in 0.1 dB steps. Pressing
<Page Up> and <Page Down> adjusts the level in 3 dB steps.
•
Click in or tab to the level readout field. Type a new value, then
press <Enter> or press <Tab> move to another area.
Loudness (LOUD)
The loudness processor block lets you apply a filter compensation curve to the signal in
an inverse relationship to the output volume control setting. The higher the output volume
setting, the less compensation is applied.
The loudness processor compensates for changes in human perception to varying volume
levels by applying a filter compensation curve to the signal in an inverse relationship to
the gain control setting. The higher the gain setting, the less loudness compensation is
applied. Generally, as volume is lowered, perception of certain frequencies is progressively
diminished, returning to a more flat response as volume is increased. Loudness boosts
those diminished frequencies to the highest degree at low volume levels, decreasing the
boost as volume increases.
AXP 64 C AT • DSP Configurator Configuration and Operation
58
Bypass must be deselected for the loudness processor to function.
The Bypass button is red when selected (loudness control is disabled)
and gray when deselected (loudness control is active).
PRELIMINARY
When the Loudness block is bypassed, the graph in its dialog box displays the current filter
curve as a dotted line. When bypass is disengaged, the current filter curve is displayed as a
solid line.
Figure 61. Loudness Dialog Box
The Loudness dialog box contains the following elements:
1. Graph — Displays the compensation curve currently applied to the signal. These
curves are read-only, and not adjustable from the graph.
2. Loudness Compensation slider — From a center zero point, move the slider to the
left for less loudness compensation (the filter curve is reduced) or to the right for more
compensation (the filter curve is increased). The slider position is translated into a dB
value, which is displayed in the compensation readout box below the slider. The range
is -24 dB (more compensation) to +24 dB (less compensation).
3. Advanced Calibration panel — Contains the SPL box, which displays the summed
value of the compensation setting and the preceding trim control.
Delay (DLY)
The Delay processor block lets you delay the
audio signal to compensate for loudspeaker
placement in situations where speakers
delivering the same signal are located at widely
varying distances from the listener. Typically, the
near speakers are delayed so that their audio
delivery time matches that of the speakers
further away.
Audio delay can sync audio to video or can
time-align speakers that are at different
distances away. You can set delay by time or
distance (feet or meters).
AXP 64 C AT • DSP Configurator Configuration and Operation
59
To set the delay:
1. In the Units panel, select the radio button for the units in which the delay is specified:
Time, Feet, or Meters.
2. Do either of the following:
•
Click and drag the handle of the vertical slider up or down until the desired delay is
displayed in the text box below the slider.
•
Click in the text box, type in the desired amount of milliseconds, then press <Enter>
on the keyboard.
The default unit setting is Time with a range of 0.0 to 200.0 ms adjustable in, increased or
decreased in 1.0 ms steps by pressing the up or down arrow key. The default is 100.0 ms.
PRELIMINARY
Slider adjustments made in feet or meters correspond incrementally to the distance
required to make 1 ms or 5 ms adjustments (detailed in the table below). If more precision is
required, enter time in 0.1 ms increments into the readout field.
Method
Time
Feet
Meters
Click + drag
1 ms
~1.1 feet
~0.3 m
Focus + arrow
1 ms
~1.1 feet
~0.3 m
Focus + Page Up/Down
5 ms
~5.6 feet
~1.7 m
When distance (feet or meters) is chosen, the conditions (temperature) field becomes
available and can be set either by degrees Fahrenheit or Celsius by clicking the appropriate
selection button. When entering a distance, time delay compensation is automatically
modified based on differences in the speed of sound due to air temperature.
Default is 70 degrees Fahrenheit.
NOTE: When using distance (feet or meters), set a temperature value first, then set the
distance.
Filter block (FILT) — analog
The analog filter block provides four filter selections: High Pass, Low Pass, Bass & Treble,
and Parametric EQ. The analog output filter block is identical to the AT filter block except
that up to nine filters total can be added to each analog filter block).
NOTE: Selecting the Bass & Treble Filter inserts two separate filters.
To insert an analog filter:
1. Right-click on the Filter block in the Output Filters panel.
2. Select Insert from the context menu, then select the filter type from the submenu.
Figure 62. Filter Menu
AXP 64 C AT • DSP Configurator Configuration and Operation
60
PRELIMINARY
3. From the Analog Filter dialog box, select the filter parameters.
Figure 63. Analog Filter Dialog Box
Dynamics processor block (DYN) — analog
The analog output dynamics block
provides four processors: AGC,
Compressor, Limiter, and Noise
Gate.
To select a dynamics processor:
1. Right-click on the Dyn processor
block.
2. Select Insert from the context
menu, then select the desired
processor from the submenu.
The available processors are
identical to those available on the AT
Dynamics processor block (see Dynamics Processor Blocks, beginning on page 52, for
explanations of each type of block).
AXP 64 C AT • DSP Configurator Configuration and Operation
61
Attenuation block
The Attenuation control lets you adjust the analog output volume to
avoid clipping. It includes a mono long-throw fader with a – 100.0 to
0.0 dB attenuation range, and a current level setting readout below
the fader. Fader adjustments are in 1 dB increments. Adjustments can
be entered manually to 0.1 dB resolution. The default is unmuted at
0 dB.
To adjust the volume level at the end of the output signal chain, use
any of the following methods:
•
Click and drag the fader handle to the desired level in -1.0 dB
steps.
•
Select or tab to the fader handle, then press the up and down
arrow keys to set the desired level in 1 dB steps. Pressing <Page
Up> and <Page Down> adjusts the level in 10 dB steps.
•
Click in or tab to the level readout field. Type a new value, then
press <Enter> or press <Tab> move to another area.
The four rear panel Digital I/O ports are designed to connect to microphones with logic
circuits. Each Digital I/O port provides one digital input and two digital output ports, plus a
common ground, for each of the first four mic/line inputs.
1
2
3
4
IN G 01 02
IN G 01 02
IN G 01 02
IN G 01 02
I/O
PRELIMINARY
Digital I/O
Figure 64. Rear Panel Digital I/O Control Ports
The digital I/O ports provide external triggering for events such
as microphone activation and muting, and for illuminating status LEDs based on the input.
The ports accept logic level signals and output logic level. They can either toggle the output
between high and low at each input trigger, or hold the output high or low until another input
trigger is received.
Configuring the Digital I/O Ports
To configure the digital I/O controls:
1. On the menu bar, select Tools/Configure Digital
Inputs. The Configure Digital I/O dialog box opens.
This dialog box contains three drop-down menus for each
of mic/line inputs 1 through 4: Digital In, Digital Out 1,
and Digital Out 2.
AXP 64 C AT • DSP Configurator Configuration and Operation
62
Figure 65. Digital I/O Configuration Screen
2. Make selections from one or more of the three drop-down menus under the name of
the mic/line input to be controlled to specify how and when the input and outputs will
be muted.
PRELIMINARY
•
Digital input menu — The Digital In menu
has the following items:
•
Level Trigger - Low Mutes — A logic
low signal (< 1 VDC) mutes the input. As
long as the digital input remains low, the
associated mic/line input is muted. When it
goes hi, the input is unmuted.
•
Level Trigger - Hi Mutes — A logic high signal (> 5 VDC) mutes the input.
As long as the digital input remains high, the associated mic/line input is muted.
A digital low unmutes the input.
•
Edge Trigger - Hi to Lo Mutes, Lo to Hi Unmutes — The associated
mic/line input mutes during a digital input transition from high to low and
unmutes during a transition from low to high.
•
Edge Trigger - Lo to Hi Mutes, Hi to Lo Unmutes — The associated
mic/line input mutes during a digital input transition from low to high and
unmutes during a transition from high to low.
•
Toggle Trigger - Hi to Lo Toggles Mute/Unmute — A logic signal change
from high to low toggles the corresponding input from mute to unmute, or
unmute to mute.
•
Toggle Trigger - Lo to Hi Toggles Mute/Unmute — A logic signal change
from low to high toggles the corresponding input from mute to unmute, or
unmute to mute.
An output action is initiated based on the input logic selection.
AXP 64 C AT • DSP Configurator Configuration and Operation
63
•
Digital output menus — The two digital outputs that switch
states based on the input can also trigger external events.
Each Digital Out menu has the following items:
•
Always Hi — By default, the digital output is always logic
high (Always Hi) regardless of the Digital I/O input status.
•
Always Lo — The digital output is always logic low
(Always Lo) regardless of the Digital I/O input status.
•
Mute Hi (LED lit) — When the corresponding input is muted by an input to
the Digital I/O or from another control action, this digital output signal is high
(Mute Hi).
•
Unmute Hi (LED lit) — When the corresponding input is unmuted by an
input to the Digital I/O or from other control actions, this digital output signal is
high (Unmute Hi).
Digital I/O Example
Figure 66 shows an example of a typical use of the Digital I/O interface for a visual indicator
of a connected microphone current status.
2
3
4
IN G 01 02
IN G 01 02
IN G 01 02
IN G 01 02
1
2
3
4
AT
IN G 0102
Control
1
5
6
OUTPUTS
POWER
12V
1.0A MAX
INPUTS
INPUTS
PRELIMINARY
I/O
1
+ -
1
2
2
3
Momentary Switch
3
4
4
RESET
AXP 64 C AT
Green LED
(un-mute)
Red LED
(mute)
Microphone Logic
Mic In
Microphone
Figure 66. Digital I/O Connection Example
In figure 66, a microphone is connected to input 1. The control Digital I/O is connected
to a momentary switch that mutes and unmutes the microphone and also to two status
indicators to tell users the microphone is live (green-unmuted) or muted (red).
The digital I/O interface for input 1 is set as follows:
•
Level - Hi — With the switch open, the input sees a logic high. As long as the digital
input remains high, the associated mic/line input is muted.
Closing the switch connects the input to ground and the logic level goes low. A digital
low unmutes the input so the user can talk.
AXP 64 C AT • DSP Configurator Configuration and Operation
64
•
The corresponding digital output connections are:
•
O1 - Mute Hi — When the input signal is muted, O1 is switched high turning on
the red LED indicator. O2 is low during mute so the green LED remains off.
•
O2 - Unmute Hi — When the input signal is unmuted, O2 is switched high turning
on the green LED indicator. At the same time, the unmuted input condition switches
O1 low, turning off the red LED.
Various combinations of input and output logic in this manner can accomplish a large
number of configurations.
Signal Path Building Blocks
Each signal path can be loaded with pre-configured, modular templates called “building
blocks.” These blocks are designed for specific microphones, source devices, or speaker
destinations and can greatly streamline initial configuration.
Selecting a Microphone Configuration
To select a microphone configuration for an input:
PRELIMINARY
1. Click the signal path label (see figure 67, 1) to open the building blocks dialog box for
the desired input (in figure 67 input 1 was selected).
Figure 67. Building Blocks Dialog Box
2. Expand the folder containing the desired building block if necessary, then click your
selection (in figure 67 Wireless Mic Rx (balanced) (2) is being selected).
The input channel loads the pre-configured processor blocks and sets the gain.
Figure 68. Input Signal Path with a Microphone Configuration Applied
After you apply building blocks you can rename them and further customize the processor
blocks according to the requirements of the system.
AXP 64 C AT • DSP Configurator Configuration and Operation
65
Creating a Building Block
You can create custom building blocks using a signal path configured for a specific device.
For example, when a new microphone is connected to input 3, the signal path might be
tailored specifically for that microphone. In the following example a gain setting is applied
and a noise gate inserted. They are then stored as a custom building block.
To create a building block for the new microphone:
1. Configure the channel processors and gain settings.
2. Click in the input number box.
Figure 69. Selecting a Signal Path
PRELIMINARY
3. In the Building Blocks dialog box that opens, select Add Block (1) in the upper left
corner.
Figure 70. Add Block Button on the Building Blocks Dialog Box
4. The Add a Building Block dialog box opens. In the dialog box Name field, type a name
for the new device.
Figure 71. Add a Building Block Dialog Box with New Device Name
5. Select a folder for the new device from the Create In drop-down menu, or click New
Folder to create a new folder (see 2 above).
Figure 72. Selecting or Creating a New Folder for the New Building Block
6. Click the Add button on either dialog box. The new mic configuration is now a building
block used to quickly configure new devices.
AXP 64 C AT • DSP Configurator Configuration and Operation
66
Overwriting an Existing Building Block
A configuration can also overwrite existing building blocks. To overwrite a building block with
another configuration:
1. Click in the desired input number box (1). The Building Blocks dialog box opens.
2. On the building blocks list, click the name of an existing building block (2) that will
replace the current one.
Figure 73. Overwriting a Building Block
PRELIMINARY
The Building Blocks dialog box closes and the blocks in the input signal chain are
overwritten with those of the new configuration.
Organizing Building Blocks
By selecting Tools/Organize Building Blocks on
the menu bar, you can organize and rearrange building
blocks to suit an application. You can move or delete
individual blocks and folders and create new folders.
The general categories of folders follow the main screen
of DSP Configurator and include the main mic/line inputs,
line inputs, virtual return, and line outputs.
You can also import and export a building block file so
that the building blocks can be used on other computers
and AXP 64 C AT devices.
Organizing listed building blocks in folders
Building blocks are organized within default folders or within new folders. You can drag
individual building blocks or a folder with all of its contents to a new location.
Creating a new folder
To create a new folder in the Organize Building Blocks dialog box:
1. Click the New Folder icon in the upper right corner. The folder opens within the
currently selected group in the organizational tree.
2. Name the new folder.
3. Do any of the following as desired:
•
To move a building block or a folder, click and drag the desired item to the new
location.
•
Click the + sign in front of the folder name to expand the view of the associated
building blocks inside it.
AXP 64 C AT • DSP Configurator Configuration and Operation
67
Deleting a Building Block
To remove a building block from the list:
1. From the menu bar, select Tools/Organize
Building Blocks. The Organize Building Blocks
dialog box opens.
2. On the building blocks list, select the name of the
block to be deleted (see the example at right, 1).
3. Click the Delete (2) icon at the top of the dialog
box.
Alternatively, you can right-click the listed building block
and select Delete from the drop-down menu.
To delete a folder and its associated building blocks, select the folder from the list and
click the Delete icon as shown on the right.
Restoring a Default Building Block
PRELIMINARY
The default building blocks are those blocks installed
with DSP Configurator. If one of the preconfigured
building blocks is deleted, it can be restored
(user‑defined building blocks are not affected).
1. From the menu bar, select Tools/Organize
Building Blocks.
2. In the Organize Building Blocks dialog box, click
the Restore Default Building Blocks icon (1).
The default building blocks and original folders are
restored to the list.
Importing or Exporting Building Blocks
Building blocks can be imported from another computer running DSP Configurator or
exported from the current computer for use elsewhere. Building blocks files are saved with
an XML file extension.
To export a building blocks file:
1. From the menu bar, select Tools/Organize
Building Blocks.
2. In the Organize Building Blocks dialog box,
click the Export Building Blocks File icon. The
Export to... dialog box opens (see figure 74 on
the next page).
AXP 64 C AT • DSP Configurator Configuration and Operation
68
PRELIMINARY
Figure 74. Export to... Dialog Box
3. In the Export to... dialog box, browse to the location where the file will be saved.
4. In the File name field, leave the current file name or enter a new file name.
5. Click Save.
To import a building blocks file:
1. From the menu bar, select Tools/Organize
Building Blocks.
2. In the Organize Building Blocks dialog box,
click the Import Building Blocks File icon. The
Import from... dialog box opens.
3. Browse to and select the building blocks file to
import.
4. Click Open. The selected building blocks file is
imported into the Organize Building Blocks
dialog box.
AXP 64 C AT • DSP Configurator Configuration and Operation
69
Dante Controller
Configuration and
Operation
This section describes the AXP 64 C AT network installation, configuration, and control
using Dante Controller for Windows and includes:
•
AXP 64 AT Bus
•
Managing Network Traffic
•
Starting Dante Controller
•
Selecting Inputs and Output for Dante
•
Dante Troubleshooting
AXP 64 C AT devices are equipped with an AT (Extron Audio Transport) bus and use Dante
technology to provide high performance digital audio networking over standard TCP/IP
networks. Dante allows audio channels to be transported across a switched Ethernet data
network while meeting the quality requirements of professional audio.
The AXP 64 C AT converts audio signals, processes them, then routes them to the AT bus
for availablity over the network. The audio network can be shared with control traffic or
unrelated data traffic. Audio channels can be unicast or multicast to make the best use of
available bandwidth.
The AXP 64 C AT models are both a transmitter (source), and receiver (destination) for
signals on a Dante network. Transmitters and receivers can be located anywhere on the
Ethernet network and can be relocated without reconfiguring the AXP 64 C AT or the
network.
Managing Network Traffic
Because Dante devices prefer to use multi-cast routing to distribute audio channels, it is
recommended that, if possible, the audio network be kept separate from the local business
network. For more information on strategies to manage audio network traffic in an integrated
system, refer to the Dante Controller manual (Multicast Transmit Flow Configuration) at the
Audinate website.
AXP 64 C AT • Dante Configuration and Operation
70
PRELIMINARY
AXP 64 AT Bus
Starting Dante Controller
To launch Dante Controller from the computer start menu, select:
All Programs > Audinate > Dante Controller > Dante Controller.
The Dante Controller - Network View screen opens.
If the network has a DHCP server, it receives its IP configuration using the standard DHCP
protocol. On a network without a DHCP server, a Dante-enabled device automatically
assigns itself an address using link local protocol.
PRELIMINARY
Once connected, Dante Controller begins auto-discovery of all Dante devices. While
scanning the network, it also advertises itself to allow Dante‑enabled devices to see and
communicate with it. When the network scan is compete, Dante Controller - Network
View screen is displayed.
2
1
3
Figure 75. Dante Controller Network View Screen
The major elements of the Network View screen include:
•
Receivers, representing Dante device inputs, are on the left side running vertically (see
figure 75, 1).
•
Transmitters, representing Dante device outputs, are along the top running horizontally
(2).
•
Connection points of the receivers and transmitters form a matrix in the lower-right
panel of the screen (3).
AXP 64 C AT • Dante Configuration and Operation
71
Device Name
The default device name of the AXP 64 C AT consists of its model name, followed by the
last six digits of its MAC address (for example, AXP 64 - 063f70).
Multiple devices on the same network can present difficulty identifying inputs and outputs.
To avoid confusion, rename each device to a unique identifier immediately after you connect
it (see Renaming connected AXP 64 C AT devices on page 17).
NOTE: To simplify renaming, connect only one Dante device to the network at a time.
After a device is renamed, it can remain connected.
In addition to renaming the connected device, you can relabel each input and output
(see Renaming an Input or Output). Avoid confusing device names and inputs and
outputs during operation. If necessary, rename the device and inputs and outputs before
proceeding.
PRELIMINARY
Dante Controller Naming Conventions:
• Device labels follow Domain Name System (DNS) hostname rules. Legal characters
are A-Z, a-z, 0-9, and hyphen (-). Device labels must begin with a letter.
• Dante Tx and Rx labels can be up to 30 characters in length. Label comparisons
are not case-sensitive; “OUTPUT01” and “OUTPUT01” are recognized as the same
connection. Unicode and non-roman characters are not supported.
• Tx and Rx channel labels can use any character except equals (=), period (.), or @.
• Tx and Rx channel labels must be unique on a device but do not need to be unique
on the network.
Renaming an Input or Output
If the devices are not properly named, Dante network connection points can quickly
become unmanageable in large systems. To better organize the various inputs and outputs,
it is recommended you name each input and each output using descriptions of the device
they belong to, the location of the device, or the purpose of the input or output.
To view the inputs of a receiver or the outputs of a transmitter device on Dante, click the +
sign next to the receiver or transmitter name to expand it (see figure 76, 1, on the next
page for an example).
AXP 64 C AT • Dante Configuration and Operation
72
PRELIMINARY
Figure 76. Expanded Device View — Input and Output Names
Receivers: The names shown in the Dante Receivers column (2) are extracted from the
Dante interface of the connected device.
•
The AXP 64 C AT inputs are Dante receivers and labelled DIGITAL_In-01 through
DIGITAL_In-04.
•
In addition there are four reference signal inputs, REFERENCE_IN-01 through
REFERENCE_IN-04.
•
Four analog outputs are also listed under the receiver name and are by default labeled
ANALOG-OUT-01 through ANALOG-OUT-04.
Transmitters: The output names in the Dante Transmitters row (3) are labelled:
•
PRE-OUT-01 through PRE-OUT-04, corresponding to the pre-processed AT outputs.
•
OUTPUT-01 through OUTPUT-06, corresponding to the AT outputs.
TIP: To simplify setup and operation of large matrix systems, rename the input (receiver)
and output (transmitter) lines to better indicate the input to which a source device is
connected and the output to which a receiver is connected.
AXP 64 C AT • Dante Configuration and Operation
73
To rename an input
1. From the Device menu on the Network View screen, select Device View.
Alternatively, press <Ctrl+D> on the keyboard.
2. From the Select a Dante Device drop-down menu, select the name of your AXP 64.
Figure 77. Device Drop-down Menu on the Device View Screen
3. Select the Receive tab (see figure 78, 1).
PRELIMINARY
4. Click on the default name of the desired input. The name becomes a text box with a
cursor (2).
Figure 78. Device View Screen — Renaming an Input
5. In the selected name text box, enter the new name (up to 30 characters) using any
combination of letters, numbers, and special characters.
6. Press <Enter> to select the next name down on the Receivers list, or click in another
input text box.
7. Repeat steps 4 through 6 for each input to be renamed.
8. When finished renaming inputs, close the Device View dialog box.
AXP 64 C AT • Dante Configuration and Operation
74
To rename an output
1. Select Device View from the Device menu on the Network View screen or press
<Ctrl+D>.
2. From the Select a Dante Device drop-down menu, select the name of your AXP 64.
PRELIMINARY
3. On the Device View screen, select the Transmit tab (see figure 79, 1).
Figure 79. Device View Screen — Renaming an Output
4. Click in the Channel Label column, to the right of the name of the output to be
renamed. A text box and cursor appear (2).
5. Enter a new name (up to 30 characters) using any combination of letters, numbers, and
special characters.
6. Press <Enter> to select the next name down on the Transmit Channels list, or click in
another output Channel Label field.
7. Repeat steps 4 through 6 for each input to be renamed.
8. When renaming is complete, close the Device View dialog box.
AXP 64 C AT • Dante Configuration and Operation
75
Selecting Inputs and Outputs for Dante
Dante Controller is used for all network level signal routing of AT bus inputs and outputs.
The digital input and output channels of the AXP 64 C AT are shown in Dante Controller
as transmitters and receivers. The digital inputs, pre-processing, and line outputs are all
available in Dante Controller for routing to other Dante devices.
AXP 64 C AT Inputs and Outputs on Dante Controller
Two sections provide output signals on the AT bus as Dante transmitter channels (see
figure 80, 3 and 4). All AXP 64 C AT outputs appear to Dante Controller as transmitters.
Audio from these outputs is always available to Dante compatible devices on the same
network. Three sections receive input signals from Dante network transmitters: the digital
inputs (1), the AEC reference inputs (2), and the analog outputs (5).
PRELIMINARY
Figure 80. DSP Configurator Outputs (Dante Transmitter Channels)
Inputs (receivers)
The AXP 64 C AT inputs (inputs 1 through 4) can be switched between digital and analog
modes. In analog input mode, the analog signals on the rear panel inputs are converted to
digital before the gain stage. In digital mode (see Input Channels on page 41) the inputs
are receiver channels on the Dante network. The inputs are always available to Dante
compatible devices on the same network. Unless renamed, the four digital inputs are in the
Dante receiver list as DIGITAL_IN-01 through DIGITAL_IN-04.
In addition, an AEC reference can be selected from any Dante device transmitter (outputs).
If they have not been renamed, the four AEC reference inputs are listed as Dante receivers
REFERENCE-01 through REFERENCE-04 corresponding to the first four input channels.
The four analog outputs (5) also connect to the Dante receiver channels. The AXP 64
applies any processing blocks to the signal and passes it to the physical output device.
AXP 64 C AT • Dante Configuration and Operation
76
Outputs (transmitters)
The pre-processed and post-processed AT outputs are listed as transmitters in Dante
Controller. Audio from these outputs is always available to Dante compatible devices on the
same network.
Unless renamed, the four pre-processed outputs (see figure 80, 3, on the previous
page) are in the Dante transmitter list as PRE‑OUT-01 through PRE-OUT-04). The
AXP 64 C AT output lines (4) are listed in Dante Controller as transmitters (OUTPUT-01
through OUTPUT-06).
Both pre-processed AT and post-processed AT outputs (Dante transmitters) can be
connected to any Dante device receiver.
Routing Signals using Dante
PRELIMINARY
Channels either transmitted to the network or received from the network are routed using
the Dante Controller Network View screen, Routing tab (see figure 81).
Figure 81. Dante Network View Screen, Routing Tab
The transmitters, listed horizontally along the top of the screen, and the receivers, listed
vertically down the left side, form a matrix whose intersections are the connection points
between the receivers and transmitters.
•
To make the receiver-to-transmitter connection, click once on an intersection.
•
To break a connection, click on the icon at the intersection.
AXP 64 C AT • Dante Configuration and Operation
77
One of the following icons appears at each connection intersection, indicating the status of
both the transmitter and receiver channels and the connections (subscriptions):
Icon
Description
Indicates an active connection (subscription).
Indicates a pending connection.
Indicates a broken connection (subscription).
Indicates the transmitting device has been removed from the network or is
switched off.
See the Dante Controller User Guide, available at the Audinate website, for additional
information.
NOTE: After making changes to Dante network routing such as connections
(subscriptions), device names, or channel labels, wait at least 5 seconds before
disconnecting or powering down the devices. This ensures that the new information
is properly saved to those devices. Device level configuration such as sample rates,
latency, and clock settings are saved instantly.
PRELIMINARY
Dante Troubleshooting
The most common Dante troubleshooting issues occur when no devices are discovered by
the Dante Controller software, or routing is not successful or is prevented. Both issues occur
when software is not able to properly discover devices operating on the Dante network.
Before moving into more difficult troubleshooting, shut down Dante Controller and reseat
the Ethernet cable connecting the PC to the Dante network. Restart the Dante Controller
software. This can be enough for the software to reacquire the Dante network.
If the problem persists, perform the following troubleshooting procedures in the order
presented.
Simplifying the network for troubleshooting
If further troubleshooting of Dante discovery is necessary, begin by simplifying the network:
1. Bypass network switches by connecting two Dante-compatible units, such as an
AXP 64 C AT and a DMP 128 AT, via their AT ports.
2. Connect the PC to an unused AT port on either device.
3. Use Dante Controller to check if the issue was resolved before moving on to network
interface troubleshooting.
4. If the issue is resolved, add connections and hardware one at a time, checking for
proper operation after each addition, until the point of failure is discovered (typically a
bad cable or invalid redundant configuration).
AXP 64 C AT • Dante Configuration and Operation
78
Troubleshooting the network interface
If the issue is still present after simplifying the network, continue to diagnose the PC network
connections as described below. Check Dante Controller after each step to see if the
problem is resolved.
1. Open the Configure Dante Interface dialog box by clicking the Choose a Dante
Interface icon (1) on the Dante Controller main screen. Be certain the correct LAN
connection is selected (the PC LAN port physically connected to the AT network) and
note the IP address.
PRELIMINARY
Figure 82. Configure Dante Interfaces Dialog Box
2. If it is on, turn off the PC wireless adapter. Disable all connections except the LAN
port connected to the Dante network (verify this is the correct port by checking the IP
address shown in step 1 above).
3. Turn off all anti-virus and firewall software on the computer.
4. Enable DHCP on the remaining network connection. This forces the computer to
acquire an IP address from the Dante interface.
Restarting Dante Controller
If connections or normal operation cannot be restored, restart Dante Controller software
(see the Dante Controller help file for the procedure). To access the Dante help file, do any of
the following:
•
Click the Help icon in the upper-right corner of the Dante screen (see figure 83, 1, on
the next page).
•
Select Contents from the Help menu (2) on the Dante screen.
•
Press the <F1> key on the computer keyboard.
AXP 64 C AT • Dante Configuration and Operation
79
PRELIMINARY
FIG_Dante help file access
Figure 83. Accessing the Dante Help File
AXP 64 C AT • Dante Configuration and Operation
80
SIS Configuration
and Control
•
Establishing a Network Connection
•
Using SIS Commands
•
Basic SIS Commands
•
DSP SIS Commands
•
Digital I/O SIS Commands
Establishing a Network Connection
To send SIS commands over Ethernet, connect any one of the AXP 64 rear panel AT
connectors to the network to which your computer or control device is connected. For
connection, use a straight-through Ethernet cable. To enter and issue commands from the
computer, use a host communication utility such as Extron DataViewer. Communication is
via a TCP/IP socket to the IP address of the AXP 64, using port 4333.
To connect the computer to the AXP via the network, you need the IP address of the
AXP. You can find the address by connecting the AXP to Dante, which provides a list IP
addresses of all devices connected to it.
NOTE: In order to find the IP address of a connected Dante AXP device, you need
the name of the device. The default name consists of the model number (AXP 64)
followed by a hyphen and the last 6 digits of the device MAC address (for example,
AXP 64 - 063f70). (The MAC address is on a label on the rear panel.)
It is highly recommended that you change the name of the AXP 64 before
beginning to configure it. See Renaming connected AXP 64 C AT devices on
page 17 for the procedure.
1. Connect the AXP 64 C AT to the network (see Connecting the AXP 64 to a Network
on page 11).
2. Open Dante Controller for Windows (see Starting Dante Controller on page 71).
AXP 64 C AT • SIS Configuration and Control
81
PRELIMINARY
Extron SIS (Simple Instruction Set) commands can be issued from a host computer to
remotely perform certain configuration and control functions on the AXP 64 C AT. This
section describes the Ethernet connection through which these commands are issued to
the AXP 64 and the commands that are available for controlling and configuring it. Topics
include:
3. On the Dante Controller main screen, click the Device Info tab (see figure 84, 1).
Figure 84. Device Info Tab on the Dante Main Screen
PRELIMINARY
4. On the Device Info screen, locate the name of your AXP. The IP address is in the
Primary Address column (see the example in figure 85, 1).
Figure 85. AXP IP Addresses on the Dante Controller Device Info Screen
5. Connect the AXP to the control computer using a host communication utility such as
Extron DataViewer (available at no charge from www.extron.com).
6. Enter the IP address and port number (4333) into the control device or DataViewer. The
AXP 64 C AT responds with a copyright message, the name of the product, firmware
version, and part number (see AXP 64 C AT-initiated Messages).
The AXP is ready to accept SIS commands immediately after it sends the copyright
message.
Using SIS Commands
AXP 64 C AT-initiated Messages
If the AXP 64 C AT is powered off, the PC is cabled to the AXP 64 C AT, and DataViewer is
set up and running on the PC, the connected AXP sends the following message when first
powered on:
© Copyright 20nn, Extron Electronics, AXP 64 C AT, Vn.nn, 60-1499-01
Vn.nn is the firmware version number.
No response is required from the host.
AXP 64 C AT • SIS Configuration and Control
82
SIS Command Sets
Although the AXP 64 C AT uses the same structure for all SIS commands, three categories
of SIS commands are used with the AXP 64:
•
Basic global SIS commands (see Basic SIS Commands on the next page).
•
DSP SIS commands (see DSP SIS Commands on page 85).
•
Digital I/O SIS commands (see Digital I/O SIS Commands on page 89).
Although both types of commands use the same structure of basic SIS commands, they
differ in how the software addresses the individual processor blocks within the AXP 64 C AT.
Using the Command and Response Tables
SIS commands consist of a string (one or more characters per command field). No special
characters are required to begin or end a command sequence. When the AXP 64 C AT
determines a command is valid, it executes the command and sends a response to the host
device. All responses end with a carriage return and a line feed (CR/LF = ]), signaling the
end of the response character string.
For programming, certain characters are more conveniently represented by their
hexadecimal than their ASCII values. The following ASCII-to-hex conversion table shows
the hexadecimal equivalent of each ASCII character:
PRELIMINARY
ASCII to HEX Conversion Table
Space
•
Figure 86. ASCII to Hex Conversion Table
Error Responses
When the AXP 64 C AT is unable to execute the command, it returns an error response to
the host. The error response codes and their descriptions are as follows:
Code
Description
E10
Invalid command
E13
Invalid parameter (number is out of range)
AXP 64 C AT • SIS Configuration and Control
83
Basic SIS Commands
Symbol Definitions
] or | =
CR/LF (carriage return/line feed) (hex 0D 0A)
} =
•
Carriage return (no line feed, hex 0D)
=
Space character
E or W =
Escape key (hex 1B)
X! =
X@ =
Firmware version number
Listed to two decimal places (n.nn)
Firmware version and build
number
Version listed to two decimal places,
build listed to four decimal places
(n.nn.nnnn)
X# =
X$ =
Unit name
Text string of up to 24 characters
Unit name (default)
AXP 64 C AT
PRELIMINARY
Special Characters
The HTML language reserves certain characters for specific functions. The device does not
accept these characters as part of preset names, the device name, or locally created file
names.
The AXP 64 C AT rejects the following characters:
+ } ~ , @ = ‘ ’ [ ] { } < > “ ” | \ ? ; : {space}
(Spaces are permitted in names.)
Command and Response Table for Basic SIS Commands
Command
NOTE:
ASCII Command
(Host to Processor)
Response
(Processor to Host)
Additional Description
Commands can be entered back-to-back in a string, with no spaces. Example: TvprS25*11•3
General Information
Query firmware version
E CQ }
X! ]
Query part number
Query Dante device name
E CPN }
E CN }
60-1499-01 ]
Query device MAC address
E CH }
X$ ]
System reset (factory default)
E ZXXX }
Zpx ]
Absolute system reset
E ZQQQ }
Zpq ]
X# ]
Show current firmware
version X!.
View the unit part number.
Show AXP 64 device name
X#.
X# can be up to 24
characters including space
characters.
Show MAC address X$ of
the connected AXP 64.
Reset Commands
Reset system to factory
default.
Similar to system reset.
AXP 64 C AT • SIS Configuration and Control
84
DSP SIS Commands
Several digital signal processor (DSP) functions can also be controlled using SIS commands.
Commands entered via the DSP software are also displayed on the host communication
utility screen (for example, Extron DataViewer) that you are using for SIS commands.
Command Structure
DSP control commands are a subset of the SIS commands with a specific structure:
E <parameter ID> <processor address> * <value> AU
Format example: E <command letter> X% * X^ AU
The unit response to these commands begins with Ds.
Processors Configurable by SIS Commands
The following diagram shows the specific DSP processors that can be configured via SIS
commands (see DSP Processing and Signal Flow on page 37 for details on the entire
signal flow).
$
PRELIMINARY
%
'
&
Figure 87. DSP Processors Addressable via SIS Commands
A
B
Mic/Line input gain control
Output gain control
C
D
Output attenuation control
Trim control
AXP 64 C AT • SIS Configuration and Control
85
The DSP Configurator program window contains six channels. Each channel consists
of an input gain and filter, a pre-processing output, the processors, and an output gain.
The following controls and processors can be configured using DSP SIS commands (see
figure 87 on the previous page):
A Mic/Line input gain control — Provides level adjustment and mute for each input
channel.
B Output gain control — Provides level control and mute for each AT output channel.
C Output attenuation control — Provides level control and mute for each analog
channel (output).
D Trim control — Provides gain control for each analog output channel.
Symbol Definitions
] = CR/LF (carriage return/line feed) (hex 0D 0A)
} = Carriage return (no line feed) (hex 0D)
(Use the pipe character, | , for web browser commands.)
•
= Space character
|
= Pipe (vertical bar) character
E = Escape key (hex 1B)
PRELIMINARY
X% = Gain, trim, or attenuation block
X% Value
Input Gain
AT Output Gain (Post-processed)
X% Value
Input 1 gain
40000
Output 1 gain
40100
Input 2 gain
40001
Output 2 gain
40101
Input 3 gain
40002
Output 3 gain
40102
Input 4 gain
40003
Output 4 gain
40103
Input 5 gain
40004
Output 5 gain
40104
Input 6 gain
40005
Output 6 gain
40105
Analog Output Attenuation
X% Value
Analog Output Trim
X% Value
Input 1 attenuation
60000
Output 1 trim
40100
Input 2 attenuation
60001
Output 2 trim
40101
Input 3 attenuation
60002
Output 3 trim
40102
Input 4 attenuation
60003
Output 4 trim
40105
X^ = Gain or attenuation level
dB value in 0.1 dB increments, using negative numbers but not decimal places.
The valid range depends on the type of block specified
for X% in the gain command (see the Audio Level Control
and Processor Selection commands on page 88).
• Input gain, analog = –180 to 800 (–18 to +80 dB)
• Input gain, digital = –180 to 240 (–18 to +24.0 dB)
• Output gain (post-processed) = –1000 to 120
(–100 to +12 dB)
• Trim (analog) = –120 to 120 (-12 to +12)
• Attenuation (analog) = –1000 to 0 (-100 to 0)
AXP 64 C AT • SIS Configuration and Control
86
X& = Mute status
0 = unmute (pass signal)
1 = mute (block signal)
X* = Input type
0 = analog
1 = digital
X( = Polarity
0 = positive (standard)
1 = negative (inverted)
X1) = Phantom power
0 = off (standard power)
1 = on
Special Characters
The HTML language reserves certain characters for specific functions. The device will not
accept these characters as part of preset names, the device name, passwords, or locally
created file names.
The AXP 64 C AT rejects the following characters:
+ } ~ , @ = ‘ ’ [ ] { } < > “ ” | \ ? ; : {space}
PRELIMINARY
(Spaces are permitted in names.)
AXP 64 C AT • SIS Configuration and Control
87
Command and Response Table for DSP SIS Commands
Command
ASCII Command
(Host to Processor)
Response
(Processor to Host)
Additional
Description
NOTE: The command format is the same regardless of the control to be set. The acceptable adjustment range varies
depending on the control or mix-point (see the level control and processor selection tables for X% on page 86).
Audio Level Control and Processor Selection
NOTE: The dB values of the level settings are in 0.1 dB increments allowing negative numbers but not decimal places.
Multiply the desired level setting by 10 for the SIS command value.
Example: To set an input level to 45.2 dB, use 452. To set an input level to -12.5 dB, use -125.
Set gain (analog)
E g X% * X^ AU}
NOTE:
(–g).
For attenuation values, use negative gain values
Set trim or mix control X%
(see level block numbers
table on page 86) to
X^ dB (see Gain or
attenuation levels on
page 86).
Set input 3 gain to
-0.8 dB.
Set output 5 to +16.5 dB.
DSP trim or mix control X%
is set to a value of X^ dB.
Output 1 is set to
+5.5 dB.
Input 1 is set to +9.2 dB.
Set trim or mix control X%
to a value of X^ dB.
Set input 3 gain to
-0.8 dB.
DSP trim or mix control X%
is set to X^ dB.
Input 1 is set to +9.2 dB.
Example 1 (Input 3 gain):
E 40002 * –8 AU }
DsG 40002 * –8 ]
Example 2 (Output 5 gain):
E g 40104 * 165 AU }
E g X% AU}
DsG 40104 * 165 ]
DsG X% * X^ ]
Example 1 (Output 1):
E g 40100 AU }
DsG 40100 * 55 ]
Example 2 (Input 1):
E g 40000 AU }
E h X% * X^ AU }
DsG 40000 * 92 ]
DsH X% * X^ ]
E h 40002 * –8 AU }
DsH 40002 * –8 ]
E h X% AU }
DsH X% * X^ ]
E h 40000 AU }
DsH 40000 * 92 ]
E m X% *1 AU }
E m 40003 * 1 AU }
E m X% * 0 AU }
E m X% AU }
Ds M X% * 1 ]
Ds M 40003 * 1 ]
Ds M X% * 0 ]
Ds M X% * X& ]
Mute audio point X%.
Mute input 4.
Unmute audio point X%.
View mute status X& of
input X%. For X&:
0 = mute off
1 = mute on
E d X% * X* AU }
Ds D X% * X* ]
Select input type X* for
block X%. For X*:
0 = analog
1 = digital
E p X% * X( AU }
Ds P X% * X( ]
Set signal polarity to X( for
block X%. For X(:
0 = positive (standard)
1 = negative (inverted)
E z X% * X1) AU }
Ds Z X% * X1) ]
Set Phantom power to X1)
for block X%. For X1):
0 = phantom power off
(default)
1 = phantom power on
Read gain (analog)
PRELIMINARY
DsG X% * X^ ]
Set gain (digital)
Example 1 (Input 3 gain):
Read gain (digital)
Example 1 (Input 1):
Audio Mute
Audio mute
Example:
Audio unmute
Read audio mute or level
Input Type
Select input type
Polarity
Set signal polarity
Phantom Power
Enable or disable phantom
power
AXP 64 C AT • SIS Configuration and Control
88
Digital I/O SIS Commands
The digital I/O SIS commands let you view the status of the digital input and output ports.
These ports can be configured via the DSP software from the Configure Digital I/O
dialog box, which you can open by selecting Configure Digital Inputs from the DSP
Tools menu.
PRELIMINARY
Symbol Definitions
X1!= Digital input
1 through 4
X1#= Digital I/O input status
0 = Logic low
1 = Logic high
X1$= Digital I/O output channel
1 through 4
X1%= Output number for the selected digital output
channel
1 or 2
X1^ = Digital I/O output mode
0 = Output high (default)
1 = Output low
2 = Follow mute (when muted, output=high)
3 = Follow mute, inverted (when muted, output=low)
Command and Response Table for Digital I/O SIS Commands
ASCII Command
Response
View digital input mode
E X1! GPI }
Gpit X1! * X1^ ]
View digital input logic state
E X1! GPIT }
Gpi X1! * X1# ]
View digital output mode
E X1$ * X1% GPOT }
Gpot X1! * X1% * X1^ ]
Command
(Host to Processor)
(Processor to Host)
Additional Description
Digital I/O Status
View digital input mode X1^
of digital input X1!.
View digital input status X1#
for digital input X1!.
View digital output mode X1^
for digital output channel X1$
of output X1%.
AXP 64 C AT • SIS Configuration and Control
89
Mounting the
AXP 64 C AT
The AXP 64 C AT can be mounted by any of the following methods (see www.extron.com
for available Extron mounting kits and ordering information):
•
Rack mounting: Attach the AXP to a standard 19-inch rack shelf, such as the Extron
19-inch Universal 1U or Basic rack shelf mounting kit.
The following Underwriters Laboratories (UL) guidelines pertain to the installation of the
AXP 64 C AT in a rack:
Elevated operating ambient temperature — If the equipment is installed in a
closed or multi-unit rack assembly, the operating ambient temperature of the rack
environment may be greater than room ambient temperature. Therefore, consider
installing the equipment in an environment compatible with the maximum ambient
temperature (TMA) specified by the manufacturer.
•
Reduced air flow — Install the equipment in the rack so that the amount of air
flow required for safe operation of the equipment is not compromised.
•
Mechanical loading — Mount the equipment in the rack so that uneven
mechanical loading does not create a hazardous condition.
•
Circuit overloading — When connecting the equipment to the supply circuit,
consider the effect that circuit overloading might have on overcurrent protection
and supply wiring. Consider equipment nameplate ratings when addressing this
concern.
•
Reliable earthing (grounding) — Maintain reliable grounding of rack-mounted
equipment. Pay particular attention to supply connections other than direct
connections to the branch circuit (such as the use of power strips).
PRELIMINARY
•
•
Under-furniture mounting: The compact size of the AXP 64 C AT enables
inconspicuous under‑table placement near table microphones and line level sources.
Mount the AXP under the surface of a desk, table, or podium using a mounting kit such
as the Extron UTS Series Under Table Shelf System or MBU 123 Low-Profile Mount Kit.
•
Free-standing: Attach the four rubber feet to the bottom of the AXP in the four corners
and place the unit on furniture as desired.
To mount the AXP 64 C AT using an Extron mounting kit, see the instructions provided with
the kit.
AXP 64 C AT • Mounting the AXP 64 C AT
90
Extron Warranty
Extron Electronics warrants this product against defects in materials and workmanship for a period of three years
from the date of purchase. In the event of malfunction during the warranty period attributable directly to faulty
workmanship and/or materials, Extron Electronics will, at its option, repair or replace said products or components,
to whatever extent it shall deem necessary to restore said product to proper operating condition, provided that it is
returned within the warranty period, with proof of purchase and description of malfunction to:
USA, Canada, South America,
and Central America:
Extron Electronics
1230 South Lewis Street
Anaheim, CA 92805
U.S.A.
Europe and Africa:
Extron Europe
Hanzeboulevard 10
3825 PH Amersfoort
The Netherlands
China:
Extron China
686 Ronghua Road
Songjiang District
Shanghai 201611
China
Asia:
Extron Asia Pte Ltd
135 Joo Seng Road, #04-01
PM Industrial Bldg.
Singapore 368363
Singapore
Middle East:
Extron Middle East
Dubai Airport Free Zone
F13, PO Box 293666
United Arab Emirates, Dubai
This Limited Warranty does not apply if the fault has been caused by misuse, improper handling care, electrical
or mechanical abuse, abnormal operating conditions, or if modifications were made to the product that were not
authorized by Extron.
NOTE: If a product is defective, please call Extron and ask for an Application Engineer to receive an RA (Return
Authorization) number. This will begin the repair process.
USA: 714.491.1500 or 800.633.9876
Asia:65.6383.4400
Europe:31.33.453.4040
Japan:81.3.3511.7655
Units must be returned insured, with shipping charges prepaid. If not insured, you assume the risk of loss or damage
during shipment. Returned units must include the serial number and a description of the problem, as well as the
name of the person to contact in case there are any questions.
Extron Electronics makes no further warranties either expressed or implied with respect to the product and its quality,
performance, merchantability, or fitness for any particular use. In no event will Extron Electronics be liable for direct,
indirect, or consequential damages resulting from any defect in this product even if Extron Electronics has been
advised of such damage.
Please note that laws vary from state to state and country to country, and that some provisions of this warranty may
not apply to you.
Extron Headquarters
Extron Europe
Extron Asia
Extron Japan
+1.800.633.9876 (Inside USA/Canada Only)
Extron USA - West
Extron USA - East
+1.714.491.1500+1.919.850.1000
+1.714.491.1517 FAX
+1.919.850.1001 FAX
+800.3987.6673
(Inside Europe Only)
+31.33.453.4040
+31.33.453.4050 FAX
+65.6383.4400
+65.6383.4664 FAX
+81.3.3511.7655
+81.3.3511.7656 FAX
Extron China
+86.21.3760.1568
+86.21.3760.1566 FAX
Extron Middle East
Extron Korea
Extron India
+971.4.299.1800
+971.4.299.1880 FAX
+82.2.3444.1571
+82.2.3444.1575 FAX
1800.3070.3777
(Inside India Only)
+91.80.3055.3777
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