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<body>On Thu, 04 Oct 2012 20:06:42 +1300, Curtis Walker <sultanoswing@gmail.com> wrote:<br><br><blockquote style="margin: 0 0 0.80ex; border-left: #0000FF 2px solid; padding-left: 1ex">Odd problem this.
<div><br></div><div>On all TV recordings, after around 20 minutes, the picture starts becoming pixellated. Over the next 30 or so seconds it becomes more and more pixellated until it looks like an impressionist painting. The sound is generally OK, but does have the odd, brief "glitch" (a noise like a modem negotiating). After no more than a minute, the picture and sound suddenly return to normal.</div>
<div><br></div><div>I'm fairly sure this is not a reception issue, since it seems to occur so regularly, and at roughly the same time in each recording, and for the rest of the recording picture and sound are perfect. Signal strength and SNR are fine (98% and 2.3dB respectively, and this is representative). Same thing occurs on all channels.</div>
<div><br></div><div>It doesn't appear to be related to the playback, as the same pixellation occurs in the same place whether viewing the recording on desktop (nvidia) or Laptop (intel integrated), although it sounds similar to symptoms reported by others on mythtv <0.25 which people ascribed to vdpau and buffer settings.</div>
<div><br></div><div>Could be some scheduled process is running every 20 minutes or so on my disks? Although why it occurs ~20 minutes into a recording, and never at other times, doesn't seem to fit with this either.</div>
<div><br></div><div>Hmmmm ....</div></blockquote><div><br></div><div>I've seen the same thing since I built my HTPC in January.I always assumed it was a signal related problem as I am in a fringe area and I thought I got an improvement with a better antenna.Ive had it with 0.24 and 0.25 + fixes.</div><div>I'm very interested to see if it turns out to be from some another cause.</div><div><br></div><div>Cheers -Paul</div><blockquote style="margin: 0 0 0.80ex; border-left: #0000FF 2px solid; padding-left: 1ex">
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