CONSOLE AI | Managing Channels (CP2) | 213
The AEC Settings dialog box appears:
14.(Optional) Make any changes to the AEC Settings you want (as described in the table below).
Option Description
Enable Acoustic Echo
Canceller
Check this box to turn on the AEC feature.
Non-linear Processing (NLP) NLP increases the power of echo cancellation for difficult acoustical
environments.
Note:
Use NLP with care. There are trade-offs associated with
NLP, including audio suppression and half-duplex operation.
Enable Push to Talk (PTT)
Mode
PTT notifies AEC when a microphone is switchedoff, and freezes
AEC convergence until the microphone is switched back on. As a
result, PTT helps prevent AEC divergence and improves overall
AEC performance with push-to-talk microphones.
Note:
When the microphone is off, set the PTT Threshold slider to
the level of the Pre-Gain Meter for the channel.
Echo Return Loss (ERL) Meter Shows the coupling between the reference signal and the input
to the echo canceller—the difference of the two levels. This is an
average meter that updates when a receive-only signal is present.
Note:
This meter functions only if the application is in online mode.
Echo Return Loss
Enhancement (ERLE) Meter
Shows the loss through the echo cancellation and non-linear
processing chain—the difference of the two levels. This is an
average meter that updates when a receive-only signal is present.
CONSOLE AI User Manual
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