[pulseaudio-tickets] [Bug 62040] Echo canclled sink is mono

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=62040

--- Comment #1 from Tanu Kaskinen <tanuk at iki.fi> ---
I tried this, and indeed at least the speex canceller doesn't support anything
but mono:

E: [pulseaudio] speex.c: AGC, denoising and echo suppression only work with
channels=1

I presume that it's a limitation of the speex algorithm. I'm not a DSP
engineer, so at least I will probably not do anything about this.

Out of curiosity, what use case requires proper (not downmixed to mono and then
duplicated to 6 channels) 5.1 output and echo cancellation at the same time?

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