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Re: [Linphone-users] Alsa makes no noise

From: Marcel Karras
Subject: Re: [Linphone-users] Alsa makes no noise
Date: Fri, 9 Sep 2005 08:59:37 +0200


On Thu, 8 Sep 2005 20:07:05 +0200
Simon Morlat <address@hidden> wrote:

> As I said before, it's perhaps a problem with the alsa driver. Can you check 
> with another pci well known card ?

I can't because the AC97 chip is onboard. (embedded board)
I posted several things into the alsa mailinglist and experimented a lot.
After that I'm sure that it is a linphone problem. I run linphone and sipomatic
in parallel and logged the status of the PCM and MIXER device. (see attachment)
As you can see there are XRUNS. I played around with the buffer settings in the
linphone code and could produce a sound but it's much to quick (rate problem?)
and not continious. (buffer problem?)
Aplay works okay without any problems. I appended the log, too.

- Marcel

> Le Mardi 6 Septembre 2005 19:07, Marcel Karras a écrit :
> > Hello,
> >
> > On Thu, 1 Sep 2005 17:30:15 +0200 (CEST)
> >
> > "Marcel Karras" <address@hidden> wrote:
> > > I can play sounds with aplay normally and linphone states having found
> > > alsa, too.
> >
> > does linphone support ALSA version 1.0.9? It's quite strange: _all_
> > ALSA-Utils programs are working perfectly but linphone doesn't
> > produce any sound. I'm about to look closer to the source in order to
> > compare it to the already working programs. Something seems to be
> > buggy or misconfigured. I don't know if ALSA is the problem or linphone.
> > In addition: With mpg321 I get various "Buffer Underruns". I just
> > posted to the ALSA mailinglist in order to get specific support.
> > Is anyone of you working with kernel >=2.6.11 and ALSA lib version
> > 1.0.9? I'll keep you up to date if I can find further infos.
> >
> > Greetings
> > - Marcel Karras

Contact: address@hidden   address@hidden 
Unix, Linux && OpenSource   Student of Chemnitz University of Technology

Attachment: diff_aplay.log
Description: Text Data

Attachment: diff_linphone.log
Description: Text Data

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