[Gta04-owner] Speex echo cancelation now working?
marek.belisko at gmail.com
Fri Mar 30 13:51:53 CEST 2012
On Fri, Mar 30, 2012 at 1:21 AM, Radek Polak <psonek2 at seznam.cz> wrote:
> i think i have fixed speex echo cancellation in gsm voice routing program.
> It's now pushed on github:
Nice work. I'm gta04 owner just from yesterday but isn't there any way to use HW
echo cancellation in modem somehow. This is just newbie question. I
browse free runner
wiki and there are modem command to enable echo cancellation.
> You can compile it on GTA04 . Copy it then to /opt/qtmoko/bin or manually
> start during call. So far all looks good - I have now quite loud volume and
> the other side hears echo no more. Maybe some params can be tuned, i just
> guessed filter_length and you can do even better cancellation with:
> speex_preprocess_ctl(preprocess_state, SPEEX_PREPROCESS_SET_ECHO_STATE,
> Btw it's documented here .
> So happy GSM calling,
>  apt-get install build-essential libspeexdsp-dev
>  http://www.speex.org/docs/manual/speex-manual/node7.html
> Gta04-owner mailing list
> Gta04-owner at goldelico.com
as simple and primitive as possible
Marek Belisko - OPEN-NANDRA
Ruska Nova Ves 219 | Presov, 08005 Slovak Republic
Tel: +421 915 052 184
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