ClearOne CONVERGE USB Specifications download pdf (Page 125)

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AEC REFERENCE TAB

The AEC Reference Tab allows you to establish reference sources for Acoustic Echo Cancellation (AEC). AEC

uses reference signals as the basis for acoustic echo cancellation. An AEC reference is a digital sample of the

receive audio signal (sampled at the far end) that is used by the AEC filter model for adaption and convergence.

You can use both unit and expansion bus audio sources as AEC references for the Mic Inputs connected to a unit.

In addition, you can define virtual reference sources that combine multiple audio signals into a single AEC reference

source. Virtual references improve AEC performance in stereo speaker and combined audio/video conferencing

applications.

Accessing AEC Reference

To access AEC Reference, select the unit that you want to define AEC references for in the Tree View Tab of the

Site Pane, then select the AEC Reference Tab from the Tab Bar in Console.

The AEC Reference screen appears in the center pane of Console. AEC reference configuration is explained in the

following sections.

AEC References Sources

Use the drop-down lists to select an AEC reference for each input channel as required for your application. As

shown above, you can select any of the following as an AEC reference source in the AEC References section of

the screen:

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ClearOne CONVERGE USB Specifications Page 125