How to control packet bursts from sound card to reducejitter?

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On Mon, Jan 5, 2009 at 7:35 AM, Jacob Holmgaard <jh at danphone.com> wrote:

> Bump...
>
>
Not solved yet? :)
Check this out: http://trac.pjsip.org/repos/wiki/FAQ#tx-timing

Cheers
 Benny




> -----Oprindelig meddelelse-----
> Fra: pjsip-bounces at lists.pjsip.org
> [mailto:pjsip-bounces at lists.pjsip.org]Pa vegne af Jacob Holmgaard
> Sendt: 17. december 2008 10:26
> Til: pjsip at lists.pjsip.org
> Emne: [pjsip] How to control packet bursts from sound card to
> reducejitter?
>
>
> Hey
> I have serious delay problems in my VoIP network I'm using/developing a
> pjsip based UA on a PC which calls a conference server (server is not based
> on pjsip) and I experience 300-500ms delay in the conference on the server.
> I have narrowed the problem down to my sound card which is "bursting"
> packets in bursts of 3 packets at a time. This means when I'm using 10ms
> frames the jitter introduced by the sound card in the PC is 0.01-30ms
> resulting in the adaptive jitter buffer in the conference server growing
> large very fast which of cause introduces a unacceptable delay.
> Now to my question :-)
> Is there any way of controlling or eliminating the bursts from the sound
> card when using pjsip? ...or do I really have to buy new and better sound
> cards for all the PCs in the network?
>
> Hope for some good feedback.
>
> Regards
> Jacob
>
>
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