[mythtv-users] A/V sync 80-100mS off - HDTV

[Timothy Braje]

Steve Skarda wrote:
> Is it typical to have varying audio sync on HDTV?   Roughly 50% of the 
> shows I record are sync'd correctly.   Another 40% typically have the 
> video 80-100mS ahead of the audio.  Ten percent of the time, the audio 
> is up to 800ms off.   I have to adjust the audio manually from the menu 
> during playback but that has to be reset after every fast forward or 
> commercial skip so it is pretty annoying.

I am having the same problem.  Haven't spent much time debugging it, but 
it seems that if I play with the settings:

	XvMC on/off
	OpenGL vsync on/off
	Deinterlacing method
	Extra audio buffering on/off
	Use video as timebase on/off	

Then I can make it work for any given channel, at the expense of others. 
  Haven't been very scientific as of now.  I am using the pc3000 HDTV card.

Tim