[Speex-dev] Prebuffering best practices
Jean-Marc.Valin at USherbrooke.ca
Tue Jun 14 21:01:45 PDT 2005
Have you looked at the Speex (adaptive) jitter buffer? See
Le mardi 14 juin 2005 à 17:50 -0700, David Barrett a écrit :
> What is the best way to pick a prebuffering length for a streaming audio
> application using UDP transport?
> I'm using Speex in a VoIP application with RTP transport, currently with
> a fixed 500ms prebuffer on the playback side. However, I'd like
> something a bit more adaptive to accomodate high-jitter connections.
> For example, in one test configuration there is a very low average
> round-trip latency (50ms), but it spikes all over the place (sometimes
> 10ms, sometimes 500ms). Thus I can't make my prebuffer duration
> proportional to latency, but somehow proportional to "jitter". But I'm
> not sure the best way to quantify this, nor how to tranform that into a
> reasonable prebuffer length.
> Thus I'm curious what experience you've had in this area, and what you
> can recommend as a good way to adaptively compute a prebuffer duration.
> Speex-dev mailing list
> Speex-dev at xiph.org
Jean-Marc Valin <Jean-Marc.Valin at USherbrooke.ca>
Université de Sherbrooke
More information about the Speex-dev