[mythtv-users] Recording Quality [0.16]

[joe.white at wachovia.com]

There have been no hardware or software changes on the box since Feb 13th 
when I installed a new hard drive.  I believe that Mark Staudinger was on 
the money with it being a heat issue.  I shut the box down for about half 
an hour.  When restarted, the problem did not re-express itself for about 
two hours.  Time to buy a quiet case fan.

mythtv-users-bounces at mythtv.org wrote on 04/20/2005 11:25:54 PM:

> On 4/20/05, joe.white at wachovia.com <joe.white at wachovia.com> wrote:
> > 
> > I first installed MythTV 0.16 in Jan 2005. It worked perfectly and I 
was
> > smug and content.  I didn't tweak the box any beyond the parameters of
> > Jarod's basic install instructions on the principle that if it ain't 
broke
> > don't fix it.  For three months all was good.  Then on April 13 the 
video
> > and audio quality began to degrade.  Old shows still play flawlessly, 
but
> > newly recorded shows tend to flash, chirp loudly and have intermittant
> > blockiness.  Since then I have made adjustments to the recording 
profiles
> > bit rates based on archival information in this list.  I have 
tightened my
> > cable connection with a wrench.  I have also done some half-heated
> > experimentation with TV playback, but since only new recordings seem 
to be
> > affected, I haven't invested much there. 
> > 
> > I am coming to the conclusion that either the cable quality has 
degraded or
> > the PVR-250(not MCE) is going bad.  Any thoughts on the matter? 
> > 
> > Fedora Core 3 
> > MythTV 0.16 Frontend and Backend 
> 
> Joe,
> 
> Have you experimented by playing one of the new recordings (they're
> MPEG2 files named as .nuv) outside of myth - using xine and mplayer?
> This will help determine if the problem is myth related or not.
> 
> Also, are you still using the same ivtv drivers as before or have they
> been updated at some point?
> 
> Finally, on the heat issue, have you tried running the system with the
> case open during a recording and playback to see if the reduction in
> heat around the PVR card reduces the degradation you are experiencing?
> 
> Nick
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