choppy sound (breaks video as well) when playing on PCI card

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On Tuesday 21 Apr 2009 22:15:42 H.S. wrote:
> Hello,
> 
> Since last several weeks, all audio on my Debian Squeeze system (kernel
> 2.6.26-2-686) is interrupted with short pauses, making sound choppy. It
> affects video as well (mplayer, gxine, youtube, etc.). Videos (avi
> files, youtube videos) and audio and also video telephony is not working
> properly anymore.
> 
> I have pulseaudio version 0.9.14-2.
> 

<snip>

> Anybody know how to solve this problem?

I'm guessing, as I don't have that card, but I had similar problems and the following worked for me.

Try editing /etc/pulse/default.pa and change
load-module module-hal-detect
to
load-module module-hal-detect tsched=0

This switches off the new glitch-free mode which, due to various problems with buggy ALSA drivers and kernels with needlessly high latency, isn't.

There is a link somewhere which explains this, but I can't find it. It seems my Google finger is broken :)

Mark
> 
> Thanks.
> 



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