[mythtv-users] Specs

[Curtis Wood]

Im thinking about getting the HDTV card,  but haven't yet. The normal TV
signal is what is twice as sharp. I have the cable box piped to both the
set and Myth - and Myth has the S-Video while the TV has the RCA jack...
On the good side - I just won an xbox on ebay - aparently you can get
the HDTV resoloutions from the it (1280x720;720p) - it was just
released.... Now I just need the pcHDTV card, heh...


On Thu, 2004-01-08 at 21:55, Joseph A. Caputo wrote:

> Top-posting rearranged.
> 
> On Thursday 08 January 2004 10:31, Curtis Wood wrote:
> > On Thu, 2004-01-08 at 17:58, Joseph A. Caputo wrote:
> > > On Wednesday 07 January 2004 23:06, Yuri wrote:
> > > > Hmm, could you please explain the difference?
> > > >
> > > > Encoding would be from video to digital (hdd) or the other way
> > > > around?
> > >
> > > Both the 250 & 350 do hardware encoding (i.e., converting the input
> > > TV signal to MPEG1/2 so that it takes up less disk space).
> > >
> > > Only the 350 does hardware decoding (converting the MPEG1/2 data
> > > back to raw video for viewing on a monitor or TV).
> > >
> > > Only the 350 has an integrated TV-out (output of the decoded stream
> > > to TV).  Other solutions require a separate TV-out method (video
> > > card with integrated TV-out, external VGA scan converter, etc). 
> > > However, note that the quality of the picture on the 350's TV-out
> > > is reportedly far better than anything you'll get from any consumer
> > > grade video card or VGA scan converter; I hear it's about on par
> > > with standalone A/V equipment.
> > >
> > > Think:
> > >
> > > encode::decode as compress::uncompress
> > >
> > > -JAC
> > >
> > On the quality of the 350's tv out... How would it compare to an
> > AT8500 -> connected to a 57" hitachi hdtv (widescreen) via DVI
> > (720x480)? The only thing that sux about this setup is that the
> > sharpness can be a big factor, and its at least 2x less sharp through
> > a 250... Also since Im asking - I have a Sb Audigy (v1), but cant get
> > to the AC3 pass through goodies, because I can only use the audio
> > from the encoded stream - does anyone know a way around this? Would
> > the 350 be anybetter?
> >
> 
> Well, first off I've never actually *seen* a PVR-350; just going by 
> other people's reports.  I'd imagine if you have an HDTV with DVI-in, 
> then the best quality would be via DVI-out if you have it; however, 
> you're still bound by the quality of your incoming signal + your codec 
> parameters.  When you say it's "2x less sharp through a 250", compared 
> to what?  Live television tuned through your HDTV?  Well, that would 
> make sense since the 250/350 is not an HDTV tuner, so you're capturing 
> at standard NTSC resolution (SVHS quality, at best).  If you have an 
> HDTV set, you might want to consider a pcHDTV card, which has hardware 
> compression & can receive HDTV stream over the air.  Check elsewhere 
> for the availability of cards that can receive HDTV over cable; I don't 
> think there are any available in the U.S.  Also, keep in mind that your 
> CPU requirements will go up if you want to decode & play full 
> HDTV-resolution streams (the pcHDTV will encode, but not decode AFAIK).  
> The PVR-350 won't help in the decoding for that, because AFAIK it will 
> only decode up to DVD-resolution (720x480 or whatever).
> 
> -JAC
> 
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