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This is related to another question of ours.

Are there any open source codec that can reduce/eliminate background noise?

In general, what are the most reliable or most popular codecs for echo cancellation?

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Crashalot
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1 Answers1

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Speex (a free and open source codec) has a DSP library which provides echo cancellation, see SpeexEchoState: Acoustic Echo Canceller (AEC). It can be used separately from the codec.

And there is WebRTC which comes with AEC code; that code base is used in PulseAudio to provide echo cancellation

Pablo Bianchi
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pmeerw
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