[mythtvnz] occasionally i get no sound recorded

[Rick Hudson]

On 7/07/2008 9:53 a.m., Mark van Dijk wrote:

> Help!!  Very occasionally (once every couple of weeks or so) a show will 
> be recorded without sound!  I will try to play the show later and i 
> can't hear anything.  playing other shows work fine, and watching live 
> TV (through MythTV) works fine, but the show itself was recorded without 
> sound.
>  
> The odd thing is that I was recording another show at the same time on 
> the other channel, and it worked fine (sound and everything).
>  
> I have a PVR-500 and am running Mythbuntu 8.04

I don't know if this is the same thing but I used to have this problem with my 
PVR-250 and it turned out to be a subtle tuning problem. It seems it's 
possible to tune to the nominal channel frequencies and always get a good 
picture but occasionally it won't pick up the sound carrier. Sometimes the 
sound would chime in part way through the recording, sometimes not at all.

What I did was find out the actual frequencies of the channels and tweak them 
in steps of 50 kHz or so. I think you can also tell myth to use the nominal 
frquency by its channel number then fine tune it from there.

-- 
Rick Hudson
http://www.kpo.org.nz/                                        rick at kpo.org.nz