Re: [Ekiga-list] Ekiga & (k)iax ?

[Damien Sandras <dsandras seconix com>]

Le dimanche 06 août 2006 à 19:27 +1200, Adam Bogacki a écrit :
> >I am the student working on this, and I have iax2 working with ekiga.
> >
> >It is usable apart from one aspect, the receiving sound packets are
> >really laggy.  To fix this I am implementing a jitter buffer so packets
> >so obey the jitter rules set by the user.  It should be finished by
> >today.
> 
> Good stuff ! I'm glad I asked .. it saves me the trouble of using kiax
> which - from screenshots - looks simple and usable. 
> 
> As to jitter, I keep getting a lot of jitter error messages when doing
> a simple echo test at sip:500 ekiga net .. and voice quality is
> unreliable - 'cookie munching' with outbursts of clarity - suggesting
> ekiga and alsa sampling rates are still out of sync.
> 

Make sure you are not using DMIX with default settings. DMIX is often
producing that kind of problem. Notice that starting with ALSA 1.0.11,
DMIX is being used even if you are not aware of it if your soundcard
doesn't support multiple channels.

> Cheers,
> 
> Adam Bogacki,
> afb paradise net nz
> 
> 2006/08/06 19:19:08.274   1:22.433          Media Patch:85ebc00 RTP
> Jitter buffer length exceeded
> 2006/08/06 19:19:08.274   1:22.433          Media Patch:85ebc00 RTP
> Jitter buffer oldest packet (151200 < 151840) too late, throwing away
> 2006/08/06 19:19:08.274   1:22.433          Media Patch:85ebc00 RTP
> Jitter buffer oldest packet (151360 < 151840) too late, throwing away
> 2006/08/06 19:19:08.275   1:22.434          Media Patch:85ebc00 RTP
> Jitter buffer oldest packet (151520 < 151840) too late, throwing away
> 2006/08/06 19:19:08.275   1:22.434          Media Patch:85ebc00 RTP
> Jitter buffer oldest packet (151680 < 151840) too late, throwing away
> 2006/08/06 19:19:08.275   1:22.434          Media Patch:85ebc00 RTP
> Jitter buffer oldest packet (151840 < 151840) too late, throwing away
> 2006/08/06 19:19:08.275   1:22.434          Media Patch:85ebc00 RTP
> Jitter buffer size increased to 4000 (500ms)
> 2006/08/06 19:19:08.484   1:22.643           RTP Jitter:85f5e48 RTP
> Received start of talk burst: 156904
> 2006/08/06 19:19:08.587   1:22.746           RTP Jitter:85f5e48 RTP
> Received start of talk burst: 157704
> 2006/08/06 19:19:08.604   1:22.763          Media Patch:85ebc00 RTP
> Jitter buffer length exceeded
> 2006/08/06 19:19:08.604   1:22.763          Media Patch:85ebc00 RTP
> Jitter buffer oldest packet (153760 < 153704) too late, throwing away
> 2006/08/06 19:19:08.604   1:22.763          Media Patch:85ebc00 RTP
> Jitter buffer size increased to 4000 (500ms)
> 2006/08/06 19:19:08.688   1:22.847           RTP Jitter:85f5e48 RTP
> Received start of talk burst: 158528
> 2006/08/06 19:19:08.704   1:22.863          Media Patch:85ebc00 RTP
> Jitter buffer leng
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-- 
 _      Damien Sandras
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