Speex dev - Oct 2008 - AEC fails for maximum volume

Hi
I am using speex 1.2-beta-3. I got AEC working on windows CE platform by
synchronizing MIC and speaker frames. The AEC is working perfectly fine for
default volume but fails miserably for max volume level. Are there any more
changes i need to do if we increase volume of device?

-- 
SHAHEER AHMED
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Shaheer Shaikh a ?crit :
> Hi
> I am using speex 1.2-beta-3. I got AEC working on windows CE platform by
> synchronizing MIC and speaker frames. The AEC is working perfectly fine
> for default volume but fails miserably for max volume level. Are there
> any more changes i need to do if we increase volume of device? 
The problem when you increase the volume is that you end up with
clipping/saturation/distortion. That's *non-linear* and there's nothing
the echo canceller can do about it. Set your gear to a decent,
non-saturating volume and your ears will be happier too.

	Jean-Marc