[Speex-dev] VAD CPU usage

Jean-Marc Valin
Thu, 17 Apr 2008 12:42:34 -0000

Sounds strange. Can you reproduce the problem with speexenc/speexdec? If
so, can you send a short file that triggers that along with the exact
command line?

	Jean-Marc

Jozsef Vass a ?crit :
> Hi Jean-Marc
>
> I am using speex in my voip app (wideband mode). I
> have noticed that when VAD kicks in, CPU considerably
> increases (bitrate decreases to 4 kbps). It takes
> about 7 ms to encode one frame versus 0.5 ms (for
> speech). This happens regardless preprocessor is used.
>
> Although the issue seems to be driver dependent, it
> occurs on XP, Vista and Mac OS X.
>
> Besides complexity and quality, this is the only
> parameter set for encoder.
>
> We use the latest released version, 1.2beta3.
>
> Are you aware of any possible problem in VAD?
>
> Thanks.
>
> Jozsef
>
>
>
>
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