[mythtv-users] Live TV Playback Issue

[Jeff Siddall]

paul at lazytechs.com wrote:
> I have had a problem with Watching Live TV.  I have tried to find this on 
> other posts but have yet to find it, so if this is a repeat I apologize ahead 
> of time.  
> 
> When I watch live TV, it is like it is fast forwarding all the time.  The 
> audio sounds like something off of a Alvin and Chipmunks recording.  It is 
> really fast.  Video playback is also sped up with the audio.  I have tried 
> adjusting sampling rate on the backend and frontend like some Posts have 
> suggested, but with no results.  Recording TV shows works just fine and so 
> does MP3 Playback.  I do not notice any error except:
> 
> 2003-12-23 10:59:35 prebuffering pause
> 
> I receive this every time it catches up to the Live TV buffer, and starts all 
> over again.  
> 
> My Setup hardware wise is has follows:
> 
> AMD Athlon 1ghz
> 1 GB RAM
> 2 Sound Cards(Running Frontend and Backend on 1 system for now)
> 
> Any Ideas would be great.
> 
> Paul

I had this problem with a SB Extigy box, which would always run the 
codec at 48 kHz, regardless of what sample rate was specified in the 
apps.  I believe my A7V8Z MOBO with the VIA8235 also has this problem, 
at least for the SPDIF out.

Unfortunately I don't know of an easy solution, since you need something 
to do sample rate conversion.  Systems like aRts will do this, but I 
haven't had any luck getting Myth to run with artsdsp (the aRts OSS 
emulator app).  You might just be able to change the recording profile 
to use 48 kHz sample rate, but you might not want all your video 
recorded that way.  I ended up just changing sound cards.

Jeff