On Mon, 2013-05-27 at 20:07 +0200, Peter Meerwald wrote: > > > echo-cancel: support multi-channel EC implementation with asymmetric number of channels in record/playback/output stream specs > > > > Yes, this should probably be mentioned. I don't remember how this > > exactly works and what are the implications, so I need to think a bit > > what to write. > > maybe nobody cares except me; the implication is that the EC module is now > more flexible and supports e.g. a 4-channels microphone signal going into > the echo canceller (say for noise reduction) yet output and playback > (towards the application) are single channel; no EC implementation > shipping with PA needs this for the moment Needing is one thing, but is it also so that none of the current EC implementations can use this? If the user gets no benefit currently, I'll leave this without a mention. -- Tanu