Extron electronic DMP 44 LC User Manual

DMP 44 LC

Four-Line Input and Four-Line Output Digital Matrix Processor

User Guide

Audio Products:

Mixers and Processors

68-1938-01

Rev. B

05 12

Safety Instructions • English

This symbol is intended to alert the user of important operating and maintenance (servicing) instructions in the literature provided with the equipment.

This symbol 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.

Caution

Read Instructions • Read and understand all safety and operating instructions before using the equipment. Retain Instructions • The safety instructions should be kept for future reference. Follow Warnings • Follow all warnings and instructions marked on the equipment or in the user information. Avoid Attachments • Do not use tools or attachments that are not recommended by the equipment

manufacturer because they may be hazardous.

Warning

Power sources • This equipment should be operated only from the power source indicated on the product. This

equipment is intended to be used with a main power system with a grounded (neutral) conductor. The third (grounding) pin is a safety feature, do not attempt to bypass or disable it.

Power disconnection • To remove power from the equipment safely, remove all power cords from the rear of

the equipment, or the desktop power module (if detachable), or from the power source receptacle (wall plug).

Power cord protection • Power cords should be routed so that they are not likely to be stepped on or pinched

by items placed upon or against them.

Servicing • Refer all servicing to qualiﬁed service personnel. There are no user-serviceable parts inside. To prevent

the risk of shock, do not attempt to service this equipment yourself because opening or removing covers may expose you to dangerous voltage or other hazards.

Slots and openings • If the equipment has slots or holes in the enclosure, these are provided to prevent

overheating of sensitive components inside. These openings must never be blocked by other objects.

Lithium battery • There is a danger of explosion if battery is incorrectly replaced. Replace it only with the

same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s instructions.

Consignes de Sécurité • Français

Ce symbole sert à avertir l’utilisateur que la documentation fournie avec le matériel contient des instructions importantes concernant l’exploitation et la maintenance (réparation).

Ce symbole sert à avertir l’utilisateur de la présence dans le boîtier de l’appareil de tensions dangereuses non isolées posant des risques d’électrocution.

Attention

Lire les instructions• Prendre connaissance de toutes les consignes de sécurité et d’exploitation avant

d’utiliser le matériel.

Conserver les instructions• Ranger les consignes de sécurité aﬁn de pouvoir les consulter à l’avenir. Respecter les avertissements • Observer tous les avertissements et consignes marqués sur le matériel ou

présentés dans la documentation utilisateur.

Eviter les pièces de fixation • Ne pas utiliser de pièces de ﬁxation ni d’outils non recommandés par le

fabricant du matériel car cela risquerait de poser certains dangers.

Sicherheitsanleitungen • Deutsch

Dieses Symbol soll dem Benutzer in der im Lieferumfang enthaltenen Dokumentation besonders wichtige Hinweise zur Bedienung und Wartung (Instandhaltung) geben.

Dieses Symbol soll den Benutzer darauf aufmerksam machen, daß im Inneren des Gehäuses dieses Produktes gefährliche Spannungen, die nicht isoliert sind und die einen elektrischen Schock verursachen können, herrschen.

Achtung

Lesen der Anleitungen • Bevor Sie das Gerät zum ersten Mal verwenden, sollten Sie alle Sicherheits-und

Bedienungsanleitungen genau durchlesen und verstehen.

Aufbewahren der Anleitungen • Die Hinweise zur elektrischen Sicherheit des Produktes sollten Sie

aufbewahren, damit Sie im Bedarfsfall darauf zurückgreifen können.

Befolgen der Warnhinweise • Befolgen Sie alle Warnhinweise und Anleitungen auf dem Gerät oder in der

Benutzerdokumentation.

Keine Zusatzgeräte • Verwenden Sie keine Werkzeuge oder Zusatzgeräte, die nicht ausdrücklich vom

Hersteller empfohlen wurden, da diese eine Gefahrenquelle darstellen können.

Avertissement

Alimentations • Ne faire fonctionner ce matériel qu’avec la source d’alimentation indiquée sur l’appareil. Ce

matériel doit être utilisé avec une alimentation principale comportant un ﬁl de terre (neutre). Le troisième contact (de mise à la terre) constitue un dispositif de sécurité : n’essayez pas de la contourner ni de la désactiver.

Déconnexion de l’alimentation• Pour mettre le matériel hors tension sans danger, déconnectez tous les

cordons d’alimentation de l’arrière de l’appareil ou du module d’alimentation de bureau (s’il est amovible) ou encore de la prise secteur.

Protection du cordon d’alimentation • Acheminer les cordons d’alimentation de manière à ce que personne

ne risque de marcher dessus et à ce qu’ils ne soient pas écrasés ou pincés par des objets.

Réparation-maintenance • Faire exécuter toutes les interventions de réparation-maintenance par un

technicien qualiﬁé. Aucun des éléments internes ne peut être réparé par l’utilisateur. Aﬁn d’éviter tout danger d’électrocution, l’utilisateur ne doit pas essayer de procéder lui-même à ces opérations car l’ouverture ou le retrait des couvercles risquent de l’exposer à de hautes tensions et autres dangers.

Fentes et orifices • Si le boîtier de l’appareil comporte des fentes ou des oriﬁces, ceux-ci servent à empêcher les

composants internes sensibles de surchauffer. Ces ouvertures ne doivent jamais être bloquées par des objets.

Lithium Batterie • Il a danger d’explosion s’ll y a remplacment incorrect de la batterie. Remplacer uniquement

avec une batterie du meme type ou d’un ype equivalent recommande par le constructeur. Mettre au reut les batteries usagees conformement aux instructions du fabricant.

Vorsicht

Stromquellen • Dieses Gerät sollte nur über die auf dem Produkt angegebene Stromquelle betrieben werden.

Dieses Gerät wurde für eine Verwendung mit einer Hauptstromleitung mit einem geerdeten (neutralen) Leiter konzipiert. Der dritte Kontakt ist für einen Erdanschluß, und stellt eine Sicherheitsfunktion dar. Diese sollte nicht umgangen oder außer Betrieb gesetzt werden.

Stromunterbrechung • Um das Gerät auf sichere Weise vom Netz zu trennen, sollten Sie alle Netzkabel aus der

Rückseite des Gerätes, aus der externen Stomversorgung (falls dies möglich ist) oder aus der Wandsteckdose

ziehen.

Schutz des Netzkabels • Netzkabel sollten stets so verlegt werden, daß sie nicht im Weg liegen und niemand

darauf treten kann oder Objekte darauf- oder unmittelbar dagegengestellt werden können.

Wartung • Alle Wartungsmaßnahmen sollten nur von qualiziertem Servicepersonal durchgeführt werden.

Die internen Komponenten des Gerätes sind wartungsfrei. Zur Vermeidung eines elektrischen Schocks versuchen Sie in keinem Fall, dieses Gerät selbst öffnen, da beim Entfernen der Abdeckungen die Gefahr eines elektrischen Schlags und/oder andere Gefahren bestehen.

Schlitze und Öffnungen • Wenn das Gerät Schlitze oder Löcher im Gehäuse aufweist, dienen diese zur

Vermeidung einer Überhitzung der empndlichen Teile im Inneren. Diese Öffnungen dürfen niemals von

anderen Objekten blockiert werden.

Litium-Batterie • Explosionsgefahr, falls die Batterie nicht richtig ersetzt wird. Ersetzen Sie verbrauchte Batterien

nur durch den gleichen oder einen vergleichbaren Batterietyp, der auch vom Hersteller empfohlen wird. Entsorgen Sie verbrauchte Batterien bitte gemäß den Herstelleranweisungen.

Instrucciones de seguridad • Español

Este símbolo se utiliza para advertir al usuario sobre instrucciones importantes de operación y mantenimiento (o cambio de partes) que se desean destacar en el contenido de la documentación suministrada con los equipos.

Este símbolo se utiliza para advertir al usuario sobre la presencia de elementos con voltaje peligroso sin protección aislante, que puedan encontrarse dentro de la caja o alojamiento del producto, y que puedan representar riesgo de electrocución.

Precaucion

Leer las instrucciones • Leer y analizar todas las instrucciones de operación y seguridad, antes de usar el

equipo.

Conservar las instrucciones • Conservar las instrucciones de seguridad para futura consulta. Obedecer las advertencias • Todas las advertencias e instrucciones marcadas en el equipo o en la

documentación del usuario, deben ser obedecidas.

Evitar el uso de accesorios • No usar herramientas o accesorios que no sean especiﬁcamente

recomendados por el fabricante, ya que podrian implicar riesgos.

安全须知 • 中文

这个符号提示用户该设备用户手册中有重要的操作和维护说明。

这个符号警告用户该设备机壳内有暴露的危险电压，有触电危险。

注意

阅读说明书 • 用户使用该设备前必须阅读并理解所有安全和使用说明。保存说明书 • 用户应保存安全说明书以备将来使用。遵守警告 • 用户应遵守产品和用户指南上的所有安全和操作说明。避免追加 • 不要使用该产品厂商没有推荐的工具或追加设备，以避免危险。

Advertencia

Alimentación eléctrica • Este equipo debe conectarse únicamente a la fuente/tipo de alimentación eléctrica

indicada en el mismo. La alimentación eléctrica de este equipo debe provenir de un sistema de distribución general con conductor neutro a tierra. La tercera pata (puesta a tierra) es una medida de seguridad, no puentearia ni eliminaria.

Desconexión de alimentación eléctrica • Para desconectar con seguridad la acometida de alimentación

eléctrica al equipo, desenchufar todos los cables de alimentación en el panel trasero del equipo, o desenchufar el módulo de alimentación (si fuera independiente), o desenchufar el cable del receptáculo de la pared.

Protección del cables de alimentación • Los cables de alimentación eléctrica se deben instalar en lugares

donde no sean pisados ni apretados por objetos que se puedan apoyar sobre ellos.

Reparaciones/mantenimiento • Solicitar siempre los servicios técnicos de personal calicado. En el interior no

hay partes a las que el usuario deba acceder. Para evitar riesgo de electrocución, no intentar personalmente la reparación/mantenimiento de este equipo, ya que al abrir o extraer las tapas puede quedar expuesto a voltajes peligrosos u otros riesgos.

Ranuras y aberturas • Si el equipo posee ranuras o oriﬁcios en su caja/alojamiento, es para evitar el

sobrecalientamiento de componentes internos sensibles. Estas aberturas nunca se deben obstruir con otros

objetos.

Batería de litio • Existe riesgo de explosión si esta batería se coloca en la posición incorrecta. Cambiar esta

batería únicamente con el mismo tipo (o su equivalente) recomendado por el fabricante. Desachar las baterías

usadas siguiendo las instrucciones del fabricante.

警告

电源 • 该设备只能使用产品上标明的电源。设备必须使用有地线的供电系统供电。第三条线（

地线）是安全设施，不能不用或跳过。

拔掉电源 • 为安全地从设备拔掉电源，请拔掉所有设备后或桌面电源的电源线，或任何接到市电

系统的电源线。

电源线保护 • 妥善布线，避免被踩踏，或重物挤压。维护 • 所有维修必须由认证的维修人员进行。设备内部没有用户可以更换的零件。为避免出现触

电危险不要自己试图打开设备盖子维修该设备。

通风孔 • 有些设备机壳上有通风槽或孔，它们是用来防止机内敏感元件过热。不要用任何东西

挡住通风孔。

锂电池 • 不正确的更换电池会有爆炸的危险。必须使用与厂家推荐的相同或相近型号的电池。按

照生产厂的建议处理废弃电池。

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. Operation is subject to the following two conditions:

1. This device may not cause harmful interference.

2. This device must accept any interference received, including interference that may cause undesired operation.

The Class A limits are designed to 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 harmful interference, in which case the user will be required to correct the interference at his own expense.

NOTE: This unit was tested with shielded cables on the peripheral devices. Shielded cables must be used with

the unit to ensure compliance with FCC emissions limits.

For more information on safety guidelines, regulatory compliances, EMI/EMF compliance, accessibility, and

Introduction

This section describes this guide and the DMP 44 LC, including:

• About This Guide

• About the DMP 44 LC Digital Matrix Processor

• Features

• DMP 44 LC Application Diagram

About This Guide

This guide contains installation, configuration, and operating information for the

Extron DMP 44 LC Digital Matrix Processor, software controlled digital audio processor.

In this guide, the DMP 44 LC may also be referred to as “the DMP” or “device.”

About the DMP 44 LC Digital Matrix Processor

The DMP 44 LC is a standalone audio matrix processor with four line inputs and four line

outputs. Using high-quality 24-bit A/D converters sampling at 48 kHz, input signals are

converted into the digital domain where Digital Signal Processing algorithms process and mix the signals. The DMP 44 LC uses a matrix design providing audio signal processing available in any of the input and output signal paths. A matrix mixer provides extremely flexible architecture, allowing for versatile processing, mixing, and routing scenarios.

An RS-232 port on the rear panel, plus a USB port located on the front panel provide

convenient high-speed access. Three digital input ports permit connection of switches and sensors to provide input to the system for triggering a variety of actions within the device.

The DMP 44 LC has no front panel controls, therefore all configuration of DSP processors

and the matrix mixer is performed using the Extron DSP Configurator™ program from a host computer via the RS-232 or USB communication ports.

Two operational modes, Live and Emulate, allow a user to work offline from the device to

set up a configuration and create presets and group controls as needed before placing the configuration in the DMP 44 LC. DSP Configurator settings developed offline can be saved to disk as a job file that can be uploaded to the device at a later time, or can be transferred

directly to the device by switching to Live mode. Up to 16 full or partial presets and up to

16 group master controls can be created, loaded into and stored in the DMP 44 LC. Control systems connected to the device by RS-232 can control a subset of DMP 44 LC functions

using Extron Simple Instruction Set (SIS™) commands.

Features

• Consumer and professional audio compatibility — Line inputs provide gain settings

to accommodate consumer (-10 dBV) and professional (+4 dBu) operating line level

sources.

• Inputs — Four balanced or unbalanced line on 3.5 mm, 6-pole captive screw

connectors.

DMP 44 LC • Introduction 1

• Outputs — Four balanced or unbalanced line on 3.5 mm, 6-pole captive screw

connectors.

• 4x4 line level audio matrix mixer — The DMP 44 LC is a compact matrix processor

with DSP. It features four line level inputs that can be processed, mixed, and routed to four line level outputs.

• DSP audio signal processing — The DMP 44 LC provides digital signal processing on

all input and output paths.

• 24-bit/48 kHz analog-to-digital and digital-to-analog converters — High

performance converters preserve audio signal integrity in input and output signal conversion, while maintaining latency under 1 ms.

• Three digital input ports for remote triggering — Three configurable digital input

ports are provided, so that external switches and sensors can be connected to the mixer for remote triggering of functions within the DMP 44 LC.

• Building Blocks processor templates — A collection of pre-designed processor

templates optimized for a specific type of input or output device, such as microphones

and Extron speakers, with preset levels, filters, dynamics, and more. Flexible building

blocks are available on each I/O strip and allow system designers to fully customize and save their own building blocks, further streamlining audio system design and integration.

• Console View with gain settings, metering, and routing in a single window —

An optional view within the DSP Configurator software that allows system designers to see all gain settings and routing, together with live metering in a single window. Console view provides overload indication, numeric values for levels, and also mute status for each input, gain stage, mix point, and output, so that settings between inputs and outputs can be easily compared and adjusted in one view.

• Live and Emulate operation modes with configuration file saving — Allows

settings to be configured offline, then uploaded to the DMP 44 LC. The software also backs up configurations from the device for archiving.

• Low latency DSP processing — The DSP engine supports an array of concurrent

audio processing within an audio channel and across multiple channels, while maintaining extremely low latency from input to output.

• DSP Configurator Software — Powerful, user-friendly PC-based software tool for

managing all audio operations of the DMP 44 LC. The software enables complete setup and configuration of digital audio processing tools, as well as routing and mixing.

• Intuitive Graphical User Environment — The DSP Configurator software features

a graphical user environment with a clear view of all input and outputs, audio processing blocks, routing, mix-points, and virtual routing in a single window. This allows a designer or installer to quickly view all audio activities without having to access multiple windows or menus.

• 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, a user can access any input or output, mixing points, and all audio DSP tools. Using only the keyboard

for software access can help expedite audio system setup and commissioning while on-site using laptop.

• Copy and paste for processing blocks — To help speed up 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.

DMP 44 LC • Introduction 2

• 16 DSP Configurator presets — Using the DSP Configurator software, parameters

for DSP processing, signal levels, or audio routing can be saved as presets. These settings can be saved for the entire system, or any selected group of inputs, outputs, mixing points, and DSP blocks.

• Group masters — The DMP 44 LC provides the capability to consolidate gain or

mute control throughout the system. Any gain or mute block within the graphical user environment can be selected and added to a group master, which can then be controlled by a single master fader and mute control. Sixteen group master controls

are provided. Each group master can have up to eight members.

• Soft limits provide optimal group master adjustment range — The group master

volume range can be limited using soft limits to maintain optimal minimum and maximum levels when using external volume control. This prevents operators from over- or under-adjusting levels.

• Flexible control options — The DMP 44 LC can be controlled using the

DSP Configurator software and a PC connection to the RS-232 serial port, or to the

USB 2.0 port on the front panel.

• Front panel USB configuration port — Enables configuration without having to

access the rear panel.

• RS-232 serial control port — Using serial commands, the DMP 44 LC can be

integrated into third-party control systems using SIS commands.

• Versatile mounting options — Rack-mountable 1U, quarter rack width metal

enclosure.

DMP 44 LC • Introduction 3

DMP 44 LC Application Diagram

Extron MLS 102 VGA

MediaLink Switcher

MLS 102 VGA

PC with VGA Out

OUTPUT

CONTROL/ POWER

OUT

L R

AUX/MIX MONO

INPUTS

12V .5A MAX

L R

AUDIO INPUTS

Laptop with VGA Out

Extron SW8 DVI A Plus

DVI Switcher With Audio

™

OFF

DISPLAY MUTE

SCREEN UP

SCREEN DOWN

TouchLink

VCR

DVD

DOC CAM

LAPTOP

Control

System

TCP/IP

100

RELAY

LINK

ACT

INPUT

COM

IPL 250

DMP 44LC

RESET

Tx Rx 1 2 3

1 U T

RS-232 DIGI IN

3 4

N P U T

POWER

3 4

12V

0.3A MAX

Extron DMP 44 LC

Digital Matrix Processor

5 6

DVI / AUDIO INPUTS

POWER

MAX

0.4A

RS-232

100-240V 0.5A, 50-60Hz

Line Output for

SW8 DVI A PLUS

REMOTE / AUTO-SW

A S

TxRx

DVI-D / AUDIO

OUTPUT

Podcast/Recording

PC with DVI Out

INPUTS

LEVEL

1 2 LISTED 17TT AUDIO/VIDEO

LIMITER/

APPARATUS

PROTECT

SIGNAL

Extron XPA 1002

Power Amplier

XPA 1002

OUTPUT

1 2

REMOTE

10V 50 mA

VOL/MUTE

CLASS 2 WIRING

STANDBY

Extron SI 26

Two Way Surface Mount Speakers

Laptop with DVI Out

PC with DVI Out

DMP 44 LC • Introduction 4

Installation

This section describes the installation of the DMP 44 LC, including:

• Mounting the DMP 44 LC

• Rear Panel Features and Cabling

Mounting the DMP 44 LC

The 1U high, quarter rack width, 3.0 inch deep DMP 44 LC Digital Matrix Processor can

be:

• Set on a table,

• Mounted on a rack shelf,

• Mounted under a desk or tabletop, or

• Mounted on a projector bracket.

See “Mounting” in the “Reference Information” section for detailed mounting instructions.

Rear Panel Features and Cabling

INPUTS

POWER

12V

0.3A MAX

1 2

3 4

Figure 1. DMP 44 LC Rear Panel

a Power connector — Connect the included 12 VDC external power supply into the

2-pole 3.5 mm captive screw connector. Be careful to observe the correct polarity.

OUTPUTS

DMP 44 LC

RESET

RS-232 DIGI IN

Tx Rx 1 2 3

5 6

DMP 44 LC • Installation 5

2-Pole Captive Screw Connector

Tie Wrap

SECTION A–A

3/16”

(5 mm) Max.

Smooth

Power Supply

Output Cord

Ridges

Figure 2. Power Supply Wiring

WARNING: The two power cord wires must be kept separate while the power supply is plugged

in. Remove power before wiring.

CAUTIONS: • Always use a power supply supplied 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.

• 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.

• The installation must always be in accordance with the applicable provisions of National Electrical Code ANSI/NFPA 70, article 75 and the Canadian Electrical

Code part 1, section 16. The power supply shall not be permanently fixed to building structure or similar structure.

CAUTION: When connecting the power supply, voltage polarity is extremely important.

CAUTION: The length of the exposed (stripped) copper wires is important. The ideal length

Do not tin the stripped power supply leads. Tinned wires are not as secure in the

NOTE: To verify the polarity before connection, check the no load power supply output with a

voltmeter.

Use the supplied tie-wrap to strap the power cord to the extended tail of the connector.

NOTE: To avoid losing adjustments when configuring the DMP 44 LC via

Applying power with incorrect voltage polarity could damage the power supply and the DMP 44 LC. Identify the power cord negative (ground) lead by the ridges on the side of the cord or a black heat shrink wrapping around it.

is 3/16 in (5 mm). Longer bare wires can short together. Shorter wires are not as secure in the direct insertion connectors and could be pulled out.

captive screw connectors and could be pulled out.

SIS commands issue a 2FF or if using the DSP Configurator, select

Tools > Save Changes to Device to store the latest changes to the

device. Wait several minutes after saving the adjustments before disconnecting power.

DMP 44 LC • Installation 6

b Power/Reset LED — The green LED indicator duplicates the front panel LED

RS-232

operation (see the “Reset Actuator and LED” section for additional information).

c Line 1-4 input connectors — 6-pole 3.5 mm double-stacked captive screw

connectors accept balanced or unbalanced mono line level signals. Line inputs

provide gain settings to accommodate consumer (-10 dBV) and professional (+4 dBu) operating line level sources. Up to four mono line inputs, balanced and unbalanced

in any combination may be connected to these inputs (see the following diagram for wiring instructions).

Audio Input Wiring

Tip

Ring

Sleeve

Balanced Input

Figure 3. Wiring Balanced or Unbalanced Line Inputs

Tip

Sleeve

Unbalanced Input

d Mono output connectors (1-4) — 6-pole 3.5 mm captive screw connectors provide

balanced or unbalanced connections for mono line level output signals.

Audio Output Wiring

Tip

Ring

Sleeve

Balanced Output

Tip

NO Ground Here

Sleeve

Unbalanced Output

Figure 4. Output Connector Wiring

CAUTION: Connect the sleeve to ground (Gnd). Connecting the sleeve only to

a negative (-) terminal will damage the audio output circuits.

e RS-232 connector — A 6-pole 3.5 mm captive screw connector for bidirectional

RS-232 (±5 V) serial control. Default baud rate is 38400.

RxTx

Tx Rx 1 2 3

RS-232

Do not tin the wires!

Device

Transmit (Tx) Receive (Rx) Ground ( )

Bidirectional

Transmit (Tx) Receive (Rx)

Ground ( )

Figure 5. RS-232 Wiring

DIGI IN

f Digital input connector — A 6-pole 3.5 mm captive screw connector (shared with

the RS-232 port) provides three configurable input ports allowing connection to various devices including motion detectors, alarms, buttons, photo (light) sensors, and temperature sensors. This connector shares a common ground with the RS-232 connector (e).

DMP 44 LC • Installation 7

The digital input port is used to monitor TTL level digital signals. Voltages greater than

RS-232

DIGI IN

2 V indicate a logic “high” signal while voltages less than .8 V indicate a logic “low.”

NOTE: These ports are configured via DSP Configurator (see the “Digital input

ports” section for additional information).

Do not tin the wires!

1 2 3

Both the RS-232 and digital input connectors may be used simultaneously by using a

6-pin captive screw connector with two wires sharing the same ground connector (see the diagram below).

Tx Rx 1 2 3

g Reset button — The recessed reset button is used to access various modes of resets.

The single green power LED on both the front and rear panels indicates what mode

of reset was accessed (see the “DMP 44 LC Hardware Reset Modes” section for additional details).

USB Configuration port (front panel)

A front panel configuration port uses an Extron USB A Male to USB Mini B Male Configuration Cable, 26-654-06 for connection to a PC computer via the USB port. The DMP USB driver must be installed prior to using the port (see the “Install the USB

Driver” section for USB driver installation details).

DMP 44 LC • Installation 8

Operation

This section describes the operation of the DMP 44 LC, including:

• DMP 44 LC Operation

• Front Panel Operation

• Rear Panel Operation

• DSP Processing/Signal Flow

• Processor Blocks

• Mix Matrix

• Line Output Channels

DMP 44 LC Operation

The DMP 44 LC does not have physical controls. Configuration and operation are

accomplished using a PC running Windows® XP or better and the DSP Configurator

software (available on the included disc or at www.extron.com), or the Extron Simple

Instruction Set (SIS) using HyperTerminal or DataViewer.

The DMP 44 LC is configured for immediate operation, with each input routed to its respective output (input 1 routed to output 1, input 2 routed to output 2, and so on).

While these settings allow the device to pass audio when first connected, it rarely meets

the needs of most applications. The DMP 44 LC can be fully configured using the DSP Configurator software.

The DSP Configurator software, when first launched, gives you a blank configuration with no processing and no mixing or routing. All gain stages are set to “unity gain,” or

0 dB of gain. Input and output gain stages provide metering in dBFS that will assist you in

configuring the device for optimal operation. The DMP 44 LC is a digital device, therefore

optimal operating levels are close to 0 dBFS without ever going over 0 dBFS (0 dB “full scale” on the input or output meters). Levels above 0 dBFS cause clipping, which is always

audible on a digital device.

All gain stages in the DMP 44 LC are mono. Gain may also be controlled using a Group master, which is configured with the DSP Configurator software. Group masters can

be used to group multiple gain or mute controls, group multiple bass or treble boost/ cut controls, gang two gain or mute controls for stereo operation, or even to control a single gain point. Soft limits can be applied to group masters. Sometimes a particular gain range may be too great, allowing for settings that are too loud or too soft, while in some instances the loudest settings may cause feedback or clipping. Soft limits can be used to limit the gain range for smoother operation.

Finally, the DMP 44 LC provides a comprehensive set of DSP processing tools. Use the filter tools to shape the tonal quality of your source material or EQ the room to compensate for acoustic gain. Use the dynamics processors for level control or system protection. The

DMP 44 LC is a versatile matrix processor for many applications.

DMP 44 LC • Operation 9

Front Panel Operation

CONFIG

1 2

Figure 6. DMP 44 LC Front Panel

Power/Reset LED — Green power indicator lights when the DMP 44 LC is

operational.

Configuration connector — The USB 2.0 port uses a mini type-B connector to

connect to a host computer for control. The DMP 44 LC USB driver must be installed

prior to using the port (see the “Install the USB Driver” section for details).

The DMP 44 LC appears as a USB peripheral with bi-directional communication. The USB connection can be used for software operation (see “Windows-based Program

Control”), and SIS control, (see “Software Control”).

DIGITAL MATRIX PROCESSOR

DMP 44 LC

Rear Panel Operation

Power Cycle

OUTPUTS

DMP 44 LC

RESET

RS-232 DIGI IN

Tx Rx 1 2 3

5 6

POWER

12V

0.3A MAX

1 2

INPUTS

3 4

Figure 7. DMP 44 LC Rear Panel

—

a b c d e f

See the “Rear Panel Features and Cabling“section for further

details.

Reset — The reset actuator initiates system reset (see the “Reset Actuator and LED”

section for additional information).

Current mixing and audio processor settings — the current state of the device — 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. If a configuration was in process during the power down, these saved mix, audio level, and audio DSP processor settings become active.

On power up, the power/reset LED (b) lights solid when the unit is available for operation

or configuration.

DMP 44 LC • Operation 10

Firmware Updates

The firmware of the DMP 44 LC can be updated through USB or RS-232 connection. The user can obtain new firmware from the Extron website. After obtaining the new firmware,

upload it to the unit using the Firmware Loader option in the DSP Configurator program (see the “Software Control” section), or using the Extron standalone Firmware Loader application available on the included disc or at www.extron.com.

Reset Actuator and LED

A recessed button on the rear panel (g) initiates two reset modes. The green front panel

LED (b) and rear panel (b) LED blink to indicate the reset modes as described in the

following section. See the previous front and rear panel diagrams.

Hardware Reset Modes

With power on, when the reset button is held down the front and rear panel LEDs pulse

(blink) every three seconds and put the unit in a different reset mode. The DMP 44 LC defaults back to the base firmware that shipped with the unit from the factory, allowing the user to recover a unit that has incorrect code or updated firmware running.

NOTE: Control software may not function correctly if using an earlier firmware

version.

MODE 1 — Firmware reset: reset button while applying power to return the firmware to the version shipped with the unit from the factory. This allows recovering a unit with incorrect or corrupt firmware. All user files and settings are maintained.

MODE 5 — Factory default reset: With power on, press and hold the reset button until the reset LED blinks 3 times (~9 seconds). Each flash will last for 0.25 seconds. Release,

then momentarily (<1 second) press the reset button to return the DMP 44 LC to factory default conditions. If the second momentary press does not occur within 1 second, the reset is exited.

The default (reset) state of the device is:

• Inputs 1 to 4 are mixed to corresponding outputs 1 to 4 (all other mix-points are set to

0 dB gain and muted).

• All inputs are active (unmuted, 0 dB gain).

• All outputs are active (unmuted, 100% volume).

• No inserted or active DSP processing.

• Group master memory is clear (empty).

• No presets.

• Digital input ports are not active and not configured.

Disconnect power to the DMP 44 LC. Press and hold the

DMP 44 LC • Operation 11

Digital Input Ports

The three-pin Digital Input port is used to monitor or drive TTL level digital signals. The port consists of three input pins with the fourth pin being used as a ground providing three inputs total. The DSP Configurator software provides a selection of functions to be loaded to the DMP 44 LC (see the “Software Control” section).

1. From the menu bar, click Tools > Configure Digital Inputs to access the

Configuration utility.

2. Select the digital input to configure.

DMP 44 LC • Operation 12

3. Select the event or “trigger” to configure the input.

4. Select the action that results when the trigger occurs.

5. Select the group to act upon when the trigger event occurs.

6. Select Apply to accept the changes.

DMP 44 LC • Operation 13

DSP Processing and Signal Flow

The diagram below shows the signal flow and DSP processing per signal chain. Signal chains and the matrix are described in the following sections.

All signal routing, processing, and level control (gain/trim/volume), are accomplished using

software control from a PC connected to the DMP 44 LC via the USB configuration port

or the RS-232 port. The DSP Configurator program provides complete control while SIS commands provide more limited control.

This section describes the signal processing including parameter ranges, and how to mix inputs and outputs using the DSP Configurator control program. To install the DSP Configurator program (see the “Software Control” section).

Line Input Signal Chain

Input signal chain GUI elements from left to right are as follows:

• Gain (GAIN) — Mono gain control with a range from -18 to +24 dB includes a mute

button. Step resolution is 0.1 dB. A polarity switch (+ or -) is provided. Gain control is

provided pre-meter and mute control is provided pre-meter.

• Filter (FILT) — Up to three filters can be inserted in any combination of High Pass,

Low Pass, Bass & Treble shelving (tone), or Parametric Equalizer.

• Dynamics (DYN) — One compressor per block per channel. Dynamics processors vary

the dynamic level (the range of loudest to softest signals).

• Ducking (DUCK) — One ducker per block, per channel. Each ducker can function as

either a source or a target. Three levels of priority are available, where a ducker can function as both a source and a target (as an example, one source may be ducked by another source, and also trigger ducking on program channels).

• Gain (GAIN) — One pre-mixer gain control per channel with a range of -100 dB to

+6 dB. The step resolution is 0.1 dB.

DMP 44 LC • Operation 14

Mix Matrix

The line input process routes incoming signals through a mix matrix to the line outputs. The mix matrix contains 16 mix-points, one for each input to each output bus with each

mix-point containing a single fader with a range of -24 dB to +12 dB, plus a mute control. The step resolution is 0.1 dB.

Line Output Chain

Line output chain elements from left to right are as follows:

• Trim (TRIM) — One post-mixer mono gain control per channel with a range of -12 dB

to +6 dB. The step resolution is 0.1 dB.

• Filter (FILT) — Up to nine frequency filters can be inserted in any combination of High

Pass, Low Pass, tone (Bass & Treble shelving), or Parametric Equalizer.

• Dynamics (DYN) — One limiter per block per channel. The limiter prevents clipping

and protects a system against component or speaker damage.

• Volume (VOL) — One output volume control per channel with a range of -100 dB to

0 dB. The step resolution is 0.1 dB. Gain control is provided pre-meter. Mute control is provided post-meter. A polarity switch (+ or -) is provided.

Processor Blocks

Processor blocks are placed in the signal chain to perform specific tasks. There are level control blocks, signal processor blocks and mix-point matrix blocks (with level control). Level control processors do not have to be inserted, they are always active. The following sections provide details of navigation, menus, and other interface operations. The processor blocks, while performing different functions, have several common elements.

• Insert — All blocks (except level controls) may be inserted by right-clicking on the

desired box and selecting from the context menu or by double-clicking and making a selection.

• Remove a process — Active processors can be removed by right-clicking on the box

and selecting Delete or by selecting the block and pressing delete on the keyboard. This sets the parameters back to default and removes or “deactivates” the block. An active processor may be replaced by right-clicking and inserting a new processor. A warning appears to indicate the previous processor is about to be replaced.

• Mute — When a level block (gain, trim or volume) is muted, all signal flow is blocked.

When mute is active a red mark appears in the lower left of the block. Mix-point mute

is indicated by shadowing the mix-point.

• Bypass — When bypass is active, signal flow passes through the block without

processing, regardless of the settings. When bypass is removed, the signal will be

processed according to the parameter settings. A red mark appears in the lower left of the block (shown below) to indicate it has been inserted, but is currently bypassed.

DMP 44 LC • Operation 15

Line Input Channels

There are four (4) mono line input channels. Channel controls and processing blocks described in the following sections are identical for each of the four inputs.

Line (Input) Gain

Line inputs provide gain settings to accommodate consumer and pro line level sources.

Each input channel gain block provides a mono long-throw fader for gain and attenuation. Range for the control is -18 to +24 dB. Step resolution is 0.1 dB. Adjustments are made using the slider or by entering the desired dB level directly into the indicator box.

Fader Handle

Gain Level

Clicking the fader handle or clicking within the fader area brings focus to the fader. The input signal level can be adjusted using any of the following methods:

• Direct adjustment. Click and hold the fader handle, then drag it to the desired level in

0.1 dB steps.

• Click or tab to the fader handle, then <up arrow> or <down arrow> to the desired

level in 1 dB steps. <Page Up> and <Page Down> increases or decreases level in 10 dB

steps.

• Click in or tab to the signal level readout field. Type a new value, then press <Enter>

or <Tab> to another area.

DMP 44 LC • Operation 16

Filter Block

Each line input channel filter block allows a total of five filters.

The first filter is inserted from a processor list that appears when the block is double-clicked or via a context window/processor list when the block is right-clicked. After the processor is inserted, double-clicking opens the setup dialog box.

Figure 8. Filter Block Dialog Box

Additional filters are inserted by opening the filter block dialog box, then selecting a filter type from the drop-down filter selection list. All filter parameters are modified via the Filter

block dialog box. Each filter loads with all applicable default parameters displayed to the

right of each drop-down filter selection list.

DMP 44 LC • Operation 17

Figure 9. Filter Dialog Box, Filters Added

Within the dialog box, a filter is focused when a filter type is inserted, or is focused by

clicking the filter number to the left of the filter selection drop-down list. Note how filter 3 in the figure below is highlighted in yellow, indicating it is the filter in focus. The results of the filter in focus (independent of other filters) shows in the graph as a dotted line of the same color as its filter row when bypassed. When active (not bypassed), the line is solid.

Figure 10. Filter Dialog Box, Filter Not Bypassed

When multiple filters are enabled, the graph indicates the focused filter result

(independent of other filters) in the color of the filter row in the type/parameters table. The composite response of all filters is displayed in red.

Above the graph, each filter has a "handle" (circled in red above) placed directly above the cutoff or center frequency whose number corresponds to the filter number (outlined in red). Clicking a handle or clicking the table row brings focus to that filter.

Click+hold+dragging the handle horizontally changes the cutoff or center frequency to a

new position on the x axis.

DMP 44 LC • Operation 18

Parametric (Equalizer)

Up to three parametric filters can be placed in the filter box at one time. Each may be set

to a different frequency creating a 3 band parametric equalizer. The control will boost or

cut the center frequency, and by changing the Q value, the range of affected frequencies can be widened or narrowed around the center frequency. In general, the higher the Q,

the narrower the affected bandwidth.

To demonstrate how Q affects the filter, see the following filter block below containing three parametric filters centered at different frequencies but with the same Q of 1.0. The

filter in focus (b) 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 200 Hz on the left and 5000 Hz on the right, a bandwidth of about 4800 Hz.

Figure 11. Parametric Filter Dialog Box, 1000 Hz

The above dialog box 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 the following illustration.

Figure 12. All Parametric Filters Active

The overall frequency response is now shown as a solid red line with the filter in focus, located in row 2, shown in the color of its table row.

DMP 44 LC • Operation 19

+ 56 hidden pages

Extron electronic DMP 44 LC User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

Introduction

About This Guide

About the DMP 44 LC Digital Matrix Processor

Features

DMP 44 LC Application Diagram

Installation

Mounting the DMP 44 LC

Rear Panel Features and Cabling

USB Configuration port (front panel)

Operation

DMP 44 LC Operation

Front Panel Operation

Rear Panel Operation

Power Cycle

Firmware Updates

Reset Actuator and LED

Digital Input Ports

DSP Processing and Signal Flow

Line Input Signal Chain

Mix Matrix

Line Output Chain

Processor Blocks

Line Input Channels

Line (Input) Gain

Filter Block