What does AEC Mobile Comfort Noise mean?
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Philipp
✭
in Photon Voice
Hi! What does the Voice WebRTCAudioDSP option "AEC Mobile Comfort Noise" mean? Thanks!
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Hi,
Comfort noise (or comfort tone) is synthetic background noise used in radio and wireless communications to fill the artificial silence in a transmission resulting from voice activity detection or from the audio clarity of modern digital lines (https://en.wikipedia.org/wiki/Comfort_noise)
About comfort noise in WebRTCAudio: WebRTC endpoints MUST support [RFC3389] CN for streams encoded with G.711 or any other supported codec that does not provide its own CN. Since Opus provides its own CN mechanism, the use of [RFC3389] CN with Opus is NOT RECOMMENDED (https://tools.ietf.org/html/rfc7874)
So you can try this option but most likely it will not be useful because Opus codec used by default.2 -
Thank you very much, that helps!0