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4-Channel Acoustic Echo Canceller Card for Yamaha DME64N/24N, MTX5-D and MRX7-D

The MY4-AEC card provides 4 channels of acoustic echo cancellation for remote conferencing using Yamaha’s DME24N/DME64N/MTX5-D/MRX7-D digital mixing engines. As well as the echo cancellation function, the MY4-AEC card also offers a noise reduction function which removes steady-state background noise such as air conditioning and projector fans etc.
The card also has a feedback suppressor with 42 notch filters per channel to aid the suppression of feedback in PA systems. Any of the 8 internal mic/line inputs of the DME24N, MTX5-D and MRX7-D can be routed to the MY4-AEC. In the case of the DME64N, any of the MY card slots or CASCADE bus can route to the MY4-AEC. The AES/EBU inputs and outputs (with sample rate conversion) can route to either the MY4-AEC or be used independently in a DME design.

Features

  • 24bit resolution, 4-in/4-out adaptive echo canceller
  • 4x Euroblock connectors
  • HD sound quality
  • 4ch feedback suppressor and noise reduction
  • Additional 4ch AES/EBU I/O with sampling rate converter
  • Easy operation with DME Designer and MTX-MRX Editor

Specifications

General Specifications
Compatible Hosts DME24N, DME64N: V4.0 or later
MTX5-D: V1.2 or later, MRX7-D: V2.0 or later
Sampling Frequency DME24N, DME64N: 44.1kHz, 48kHz, 88.2kHz, 96kHz (-10%, +6%)
MTX5-D, MRX7-D: 44.1kHz, 48kHz (-10%, +6%)
Digital Input/Output Characteristics
Terminal Format Audio Data Length Level Connector
AES/EBU In 1/2, 3/4 AES/EBU 24bit RS422 Euroblock
AES/EBU Out 1/2, 3/4 AES/EBU* 24bit RS422 Euroblock
*Professional use
Audio
Signal Processing Adaptive Echo Canceller, Feedback Suppressor
Noise Reduction, Matrix Mixer
Frequency Range 20Hz to 20kHz
Arrival Time of Direct Sound 120ms maximum
Echo Time Delay 400ms maximum
Echo Cancelling Capacity 60dB maximum
Noise Reduction 17dB maximum

Related products

DME24N, DME64N

DME24N, DME64N

These networkable DSP units offer an extensive range of signal processing capabilities, programmable via a comprehensive graphical interface.

MTX Series

MTX Series

MTX Series matrix processors are equipped with flexible processing functions that are essential to a wide variety of applications.

MRX7-D

MRX7-D

Simple, flexible control for complex, high-capacity sound systems

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