[Speex-dev] Jitter buffer

[Danny Chan]

Hi Jean and Steve,

Can you tell me whether the jitter filter / buffer is adaptive type, I
saw the description of speex_jitter.h say it is "adaptive", anyone of
the group has implemented it and confirm it.

Thank you all.


 
Regards,
 
Danny Chan

-----Original Message-----
From: speex-dev-bounces at xiph.org [mailto:speex-dev-bounces at xiph.org] On
Behalf Of Jean-Marc Valin
Sent: Tuesday, September 07, 2004 11:32 PM
To: Steve Kann
Cc: speex
Subject: Re: [Speex-dev] Jitter buffer

On mar, 2004-09-07 at 09:48 -0400, Steve Kann wrote:
> It's only 300 lines of C, so it shouldn't take very long for you to 
> study it --  it's not part of the codec proper.   I haven't used it,
> but 
> the advantage would be that (I believe) it supports interpolation of 
> lost frames, which your jitter buffer may not support.

The interpolation of lost frames (PLC) is actually done within the
codec, so the jitter buffer just needs to ask for it. Another thing that
this jitter buffer supports (though I've never tested it seriously) is
support for multiple frames per packet. 

	Jean-Marc


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