Sound problems on HTC pocket PCs

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Hi,

I've found the problem for the stratters.
It was caused by two different reasons:
1) The AEC raised the CPU to 100%
2) The frame ptime config was too low. I raised it to 40.

Thank you all !
Mike.


On Wed, May 20, 2009 at 5:53 PM, Nanang Izzuddin <nanang at pjsip.org> wrote:

> Hi,
>
> If it really was about sound device (burstiness/unstability),
> increasing audio device latency may solve the problem, e.g: add the
> following lines into your config_site.h:
> #define PJMEDIA_SND_DEFAULT_REC_LATENCY  140 or higher
> #define PJMEDIA_SND_DEFAULT_PLAY_LATENCY 140 or higher
> (you could also setting it runtime-ly via pjsua_media_config).
>
> Regards,
> nanang
>
>
> On Wed, May 20, 2009 at 4:39 PM, Mike Kraimer <mikekraimer at gmail.com>
> wrote:
> > Hello,
> >
> > I'm trying to run pjsua on pocket PCs and I'm facing a problem. I'll be
> glad
> > if someone can help me.
> >
> > When I make a call from pjsua on a Mio device (Windows Mobile 6) to pjsua
> on
> > PC it works fine.
> > But when I make a call from an HTC device (Diamond or Pro) to PC, the
> sound
> > is very bad.
> > I was trying to make changes in the code to fix this problem but with no
> > success. So now I think that maybe changing some parameters will fix the
> > problem.
> >
> > I added code in "put_frame_imp" function on the file "stream.c" which
> writes
> > the audio samples to a file just before it encodes and sends them by RTP.
> If
> > you open the recorded pcm file (8Khz, 16bit, Mono) and see that it looks
> > like my voice was shrinked - When recording I was counting very slowly,
> and
> > in the file you can hear my voice and see that the counting is very fast.
> >
> > The problem is probably in the settings that relevant to the sound
> capture.
> > Does somebody know how can I detect where is the problem?
> > I tried the FAQ, but I don't even know what is the name of this behavior.
> >
> > Thanks in advance,
> > Mike Kraimer.
> >
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> >
> >
>
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