[mythtv-users] HD, the holy grail...

[Bradley Dorner]

>
>
> Are the artifacts you describe appearing during playback or recording? (Do
> they appear in identical spots when you re-play a recording? If so,
> they're
> probably recording artifacts. You can also download a "clean" HD sample
> recording from various sources on the Internet to check playback.) What's
> your HD source -- over-the-air (ATSC) or cable (QAM)?


I have not even looked at the recordings as  yet.  This is during live tv.
The signal is ATSC with a signal strength  on average of 50%.

The pcHDTV 3000 has known problems with QAM reception. It works fine for
> some
> people, but for others it doesn't. The discussions I've seen suggest that
> the
> pcHDTV 3000 relies on strong 5v power, and that some (most, it seems)
> power
> supplies don't deliver this, and/or other components may degrade it enough
> to
> cause problems. I have this problem -- with the right components I can get
> a
> clean QAM recording immediately after booting the computer, but as it runs
> for a while the quality degrades to the point where it's useless. Swapping
> video cards (from a SiS to an nVidia card) makes it worse, too, which is
> unfortunate because the SiS card isn't up to the task of HD playback.
> Fortunately, at this point my HD needs are slim since I'm still using an
> NTSC
> TV, but I expect to be replacing my pcHDTV card with something better
> before
> I upgrade to an HD screen.


The degradation that you are talking about , where the picture starts out
fine and then after awhile is useless, is what I am experiencing. I should
have another power supply coming in a few months, RMA's seem to take
forever. Unless someone has a better idea I think I will just keep rebooting
until it comes, but I am open to other suggestions if anyone has other
ideas.

Brad

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> Rod Smith
> http://www.rodsbooks.com
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