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DMP 128 Series

12x8 Audio Digital Signal Processors with Acoustic Echo Cancellation and Dante Audio Networking

Most InAVative Commercial Audio Product (non loudspeaker) - WinnerMost InAVative Commercial Audio Product (non loudspeaker) - Winner

The Extron DMP 128 Series are 12x8 audio digital signal processors featuring Extron ProDSP™, automixing, AEC - acoustic echo cancellation, and I/O expansion capabilities including Dante™ audio networking. The DMP 128 Series offers a configuration approach to DSP that simplifies mixing, routing, conferencing, and room optimization. Quick and intuitive configuration using the DSP Configurator™ Software allows the DMP 128 Series to be installed in very little time, with easy-to-learn adjustments that can be heard in real-time. The DMP 128 is ideal for presentation and conferencing applications in boardrooms, courtrooms, and conference centers that require advanced matrix mixing with DSP.

All models in the DMP 128 product family are immediately available. The DMP 128 C P and DMP 128 C P AT are the newest models shipping, and feature POTS - plain old telephone service capability for connection to an analog phone line and handset.

Key Features

  • Six models with 12 mic/line inputs and 8 outputs
  • Models available with AEC, Dante, and POTS
  • Eight channels of AEC - acoustic echo cancellation
  • Analog phone interfacing with POTS line and handset connections
  • Dante audio networking provides a wide range of expansion capabilities
  • Digital audio expansion port for linking two DMP 128 units
  • Automixer with eight groups
  • ProDSP 32/64-bit floating point signal processing
  • Studio grade 24-bit/48 kHz analog-to-digital and digital-to-analog converters
  • Low latency DSP processing
  • DSP Configurator Software
  • Intuitive Graphical User Environment
  • Building Blocks processor templates
  • 20 digital I/O ports for remote control or feedback

Dante Audio Networking

Dante technology from Audinate provides high performance digital audio distribution over standard local area networks. Dante allows high resolution audio channels to be transported uncompressed across a switched Ethernet data network using standard TCP/IP protocols, while meeting the stringent quality requirements of professional audio. With Dante, DMP 128 AT processors can share multiple channels of high resolution digital audio with each other over a local area network. A DMP 128 AT can also be directly linked to other processors using the built-in four port Gigabit Ethernet switch, through standard network hardware including switches, or by connecting into a network infrastructure.

POTS Analog Telephone Capability

DMP 128 C P and DMP 128 C P AT models provide the ability to answer and initiate telephone calls to remote participants in a conferencing session. Two RJ-11 ports allow connection to a POTS line and a telephone handset. DMP 128 P models can be used over the PSTN - public switched telephone network and in a PBX - private branch exchange, and comply with all applicable US and international standards. The DSP Configurator Software facilitates quick and intuitive telephone setup, and includes a convenient phone dialer interface for setup and testing.

DMP 128 C AT - Conference Room Application
  Click to enlarge
Conference Room Application - Multiple microphones and presentation audio with AEC support, distributed I/O between five DSPs over a Dante digital audio network, and matrix mixing for voice lift in 12 speaker zones
DTP Systems

The DMP 128 is adept at handling complex configurations with powerful signal processing tools. It has provided us with a huge degree of flexibility when designing and installing audio systems in single and multi-room environments.

Eclipse Audio Visual
Stephen Bell - Technical Director
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Featured Media


  • DMP 128
    DMP 128

    Introduction of the features and capabilities of this 12x8 audio DSP with available AEC, as well as the intuitive DSP Configurator Software.

  • DMP 128 AT
    DMP 128 AT

    Introduction of the expanded capabilities of the DMP 128 AT models featuring Dante audio networking and integrated four port Gigabit Ethernet switch.

  • DSP Configurator Software
    DSP Configurator Software

    This video provides an overview of the DSP Configurator Software enhancements supporting the DMP 128 Series of Digital Matrix Processors.

  • DMP 128 Feature: AEC
    DMP 128 Feature: AEC

    This video provides an overview of AEC - acoustic echo cancellation and how to configure AEC processing in the DMP 128 Series using the DSP Configurator Software.

  • DMP 128 Feature: Automixer

    This video provides a closer look at how to configure the automixer in the DMP 128 Series using the DSP Configurator Software.

  • DMP 128 Feature: Expansion Port

    This video provides a closer look at the expansion port feature for linking two DMP 128 units, using the DSP Configurator Software to configure routing for the expansion buses between the units.

  • Introduction to AEC

    This video series provides an essential overview of acoustic echo in conferencing applications, and the principles of AEC technology, which eliminates the echo to ensure natural two-way communications.

  • Dante Introduction

    Learn how Dante simplifies AV media networks by using standard IP network topology and equipment.

  • Dante Interoperability

    Dante provides ease of integration by offering scalable interoperability with low latency across many manufacturers.

  • Dante is AVB Ready

    Learn how Dante is built on IP standards and is AVB ready to offer long-term AV system viability.

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