[Speex-dev] voice delay after pause speaking

Jean-Marc Valin Jean-Marc.Valin at USherbrooke.ca
Mon Mar 27 04:51:13 PST 2006

What you are experiencing is more likely a transport problem and not a
codec problem. The symptoms match pretty well with the following
- Using TCP instead of UDP/RTP
- Not taking into account the drift in clocks between soundcards
- Using a bad (poorly written) jitter buffer.

Oh, and BTW, the decode process is *very* fast (10x faster than
encoding), so I doubt that's where the problem is.


Le vendredi 24 mars 2006 à 20:17 +0800, tomy a écrit :
> I am using speex in a voip project.I use an ARM 9 based cpu. all is ok
> but 
> on problem exists.
> after I pause my speaking a while, for example, 2 minutes, the other
> peer hears
> the voice delay. I have made many test to lookup its reason, it\'s
> seems that 
> decode process needs more CPU power in this case. 
> I use mono 8KHz , encoding without VAD and preprocessor.
> who can tell me how to adjust some thing to resolve this problem ?
> tomy
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