Re: stereo usage of the echo canceler

The speex_echo_playback() interface wasn't adapted to multi-channel. You
need to use the _mc interface.

On 12-08-26 01:52 AM, Roger Pack wrote:
> Hello all.
> 
> A few questions on using speex's echo cancellation, for clarifying:
> 
> 1) I assume that the echo_frame in this method:
> 
> speex_echo_playback(echo_state, echo_frame)
> 
> is just raw "pcm_s16le" type bits/data?  I'm a bit new to all this...
> 
> 2) I assume from this thread:
> http://lists.xiph.org/pipermail/speex-dev/2009-March/007151.html
> that speex_echo_playback and speex_echo_capture only work with "mono"
> input streams/samples?
> 
> Or is it the case that if I used init_mc then I could use
> speex_echo_cancellation and pass it stereo samples?  What if I'm
> multi-threaded (one thread out, one thread in), is it possible to use
> speex_echo_cancellation in this instance?
> 
> Thank you very much.
> -Roger-
> -roger-
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>