[mythtv-users] what is a : WriteAudio: buffer underrun?

Paul mylists at wilsononline.id.au
Sat Nov 28 05:57:14 UTC 2009

On 25/11/2009 9:15 PM, Paul wrote:
> I'm getting alot of these during playback along with some pauses , can 
> someone explain to me what the cause of these are?
> is it a Audio problem or Video problem?
> 2009-11-25 20:47:48.049 WriteAudio: buffer underrun
> 2009-11-25 20:49:24.993 WriteAudio: buffer underrun
> 2009-11-25 20:58:54.003 WriteAudio: buffer underrun
> 2009-11-25 20:58:54.984 WriteAudio: buffer underrun
> 2009-11-25 21:01:18.016 WriteAudio: buffer underrun
> Paul
 > 2009-11-25 20:47:48.049 WriteAudio: buffer underrun

It's usually a resource problem. If there's some bottle neck that's
preventing the video from being decoded in real time, the sound card
can run out of data to play and you'll get one of these messages. It
could be that you don't have enough CPU to decode the video you're
trying to play, along with whatever else your system is trying to do
at the same time.



I have a AMD 3200 so I'm pretty sure this has enough grunt to playback SD video..
it must be some other resource issue, but how do I exactly find out?

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