Re: [linux-audio-dev] Acoustic echo canceller released

Hi,
cool news about the echo canceller.

some questions:
I've found this algorithm on the web (but I did not test it)

http://home.arcor.de/andreadrian/echo_cancel/draft-aec-03.txt

How do you think your's and the one above compare quality wise ?

Do linux telephony apps like linphone, gnomemeeting etc already have
echo cancellation built in ?
I guess not.
Perhaps it would be handy if you made a shared lib out of your echo
canceller (or provide a c file
with a simple API like in the link above) so that linux telephony apps
can easily integrate it
(and it should work for any codec not just speex).

Thoughts ?

thanks,
Benno
http://www.linuxsampler.org

Jean-Marc Valin wrote:

>Hi,
>
>I thought this could be of interest to some people here. I have just
>released an acoustic echo canceller as part of Speex 1.1.9
>(http://www.speex.org/). So far, I have tested it on 8 kHz, but it
>should work for other sampling rates. It uses the MDF algorithm and
>(optionally) residual echo cancellation in the spectral domain. If
>anyone is interested in making an ALSA plugin out of it, I can provide
>assistance. Oh, and it's released under the (revised) BSD license.
>
> Jean-Marc
>
>P.S. In case some noticed, there was an echo canceller in Speex before,
>but this is the first version to actually work in real conditions
>(double talk and all).
>
>
>
Received on Sun Jun 5 16:15:09 2005