[mythtv-users] how do I stop prebuffing problems with audio

[Paul]

On 7/09/2008 4:30 PM, Paul wrote:
> On 7/09/2008 8:49 AM, Paul wrote:
>> I'm frequency seeing the following messages and getting audio slightly 
>> out of sync with Video
>>
>> 2008-08-31 11:52:36.618 NVP::AddAudioData():p1: Audio buffer overflow, 
>> audio data lost!
>> 2008-08-31 13:01:11.653 NVP::AddAudioData():p1: Audio buffer overflow, 
>> audio data lost!
>> 2008-08-31 13:07:36.404 NVP: prebuffering pause
>> 2008-08-31 13:15:46.553 NVP::AddAudioData():p1: Audio buffer overflow, 
>> audio data lost!
>>
>>
>> I'm using DVI-> HDMI output to a HDTV using HD1080i
>> I'm running FC8 with Nvidia rpms using a VGA=NV 6200 GT and CPU=AMD 3200+
>>
>> My CPU doesn't seem to to be a problem ie it sits around 30-50%
>>
>>
>> Paul
>>
>>
>>
> 
> I have been seeing this problem as well, been struggling with it for
> past few weeks. At first, I thought it was my motherboard chipset,
> then I thought it was the sound card. Then I started looking at the
> MythTV source code.
> 
> Let me ask a question - do you see this error if you play an HD
> recording from the beginning (not a bookmark) but without skipping
> forward or backward?
> 
> For my personal situation, I currently suspect the problem is due to
> faulty firewire capture...
> 
> ====
> 
> 
> I capture from DVB-T and yes it tends to happen more often with HD 
> programming but also
> some SD recorded shows as well..
> I was thinking of dropping down from HD1080 to HD720 output to see if 
> that makes the problem go away.
> 
> Paul
> 
> PS  sorry about the format as I dont have the mailing output turned on 
> so I have to reply this way..
> 
> I would be good if this was a forum rather than mailing list.. far easier.
> 
> 
> 

a small update, I had  vncserver running on the mythTV userid which seems to cause some 
performance problem, I shut down "vncserver" .
Althought I'm see seeing heaps of these msgs when watching HD content

2008-09-13 18:26:51.436 NVP: prebuffering pause
2008-09-13 18:26:51.463 NVP: prebuffering pause
2008-09-13 18:26:51.504 NVP: prebuffering pause

...

Paul