[Speex-dev] AEC - Echo is cancelled however.....

Marco Pierleoni pierleoni.m at gmail.com
Wed May 12 01:05:19 PDT 2010

> On the side note:
> I have a test environment. Where I created the stream such a way that I have
> one "captured stream" purely with echo (i.e. no one else is speaking) and
> one stream with echo + someone speaking. I confirmed that I start in perfect
> sync. When I run echo canceller on the first stream there is perfect echo
> cancellation and on the second stream the echo is subdued. The echo is not
> very audible unless you listen at high volume. Although this is acceptable,
> I would like to know if you see similar issue.

I did not see this effect. I have sometimes a metallic echo in the
background, but I think it depends on the audio device quality in my

More information about the Speex-dev mailing list