[mythtv-users] HDTV questions

Steve Adeff adeffs at gmail.com
Fri Dec 9 10:28:49 EST 2005


On Friday 09 December 2005 02:09, Todd Ignasiak wrote:
> In the U.S., HDTV is broadcast as MPEG2.  The articles I have read
> about HDTV in Europe have said MPEG4 (probably H.264 / MPEG4.10 / AVC)
> will be used.  H.264 takes much more CPU horsepower to decode.   A
> 3GHz P4 may not ave the horsepower to decode it.
>
> On 12/8/05, Steve Adeff <adeffs at gmail.com> wrote:
> > On Thursday 08 December 2005 13:19, mythtv-users at fastdruid.co.uk wrote:
> > > Well seeing as HDTV looks to be coming to the UK next year
> > > ( http://www.theregister.co.uk/2005/12/01/telewest_goes_live_with_hdtv/
> > > ) and we're looking at buying a new HDTV 'ready' TV[1] (1080i) I'm
> > > planning to get HDTV playback set up on my myth box. Only problem is I
> > > don't know where to start!
> >
> > wait till HDTV becomes available before buying a TV. The States are just
> > beginning to see 1080p sets hit the market, by the time you get HDTV in
> > the UK I'm sure they'll be there as well, and the prices for HDTV's will
> > drop in general. No reason to get it now if you won't really be able to
> > use it and the prices will go down.
> >
> > > I'm currently running a P4 2.8GHz with 1Gb, twin Nova-T's and a 128Mb
> > > AGP Nvidia MX440 with the TV out of composite (AV) at 1024x768 and
> > > running SuSE 10.0/mythtv 18.1 Disk space is er plenty (2TB+ if need be)
> >
> > I'd suggest upgrading the video card to a 6xxx series NVidia GPU. Most
> > support component output that will let you use 1080i, or if you do end up
> > with a 1080p you will be able to set your resolution to 1920x1080 and
> > output via the HDMI port. Again, wait and see where the market is when
> > its time.
> >
> > > I've got a few questions that some of our US cousins might be able to
> > > help me with :-)
> >
> > Your being too kind, I prefer bastard children ;-)
> >
> > > 1) How is HDTV connected? Looking at the specs for the TV we're
> > > thinking of there's Composite (AV), Y/C (S-Video), ANT (RF), Component
> > > (Y/Pb/Pr) and SCART (which you don't have in the US).
> > > What type is used for HDTV (or doesn't it matter)?
> >
> > Component and DVI/HDMI. SCART, S-Video, and Composite don't have the
> > bandwidth availability for HDTV over the wires used.
> > Component is an analog method (basically a modified S-Video for higher
> > bandwidth. I still maintain S-Video with higher bandwidth abilities would
> > be better than component but I digress...).
> > HDMI/DVI is "digital". HDMI is the best. Basically, the more HDMI inputs
> > the better.
> > Oh, and Firewire. Some HDTV's will have firewire inputs. relatively
> > useless for connecting a computer right now, but great for some cable
> > boxes and DVHS decks.
> >
> > > 2) Will the MX440 be powerful enough or will I need a newer card?
> >
> > see above.
> >
> > > 3) Am I likely to need more processing power (I've got a 3GHz P4 in
> > > another box I could swap over if need be but would I need more than
> > > that).
> >
> > the 2.8 should be fine. Wait till the time comes and see if the cost of a
> > faster CPU is worth it.
> >
> > > 4) Are my existing recordings going to look awful (PAL 768x576).
> >
> > yes. most SD material looks bad on HDTV even when its all digital. My dad
> > has a 50" Sony Grand Wega III (oh. my. god. is it nice....jealous) and
> > with his SD cable channels it looks ok considering the source, and
> > possibly better than a 50" SD TV would, but once you get used to HDTV
> > you'll consider it pretty poor...
> >
> > > 5) Am I just wasting my time? Seeing as the recordings (for probably at
> > > _least_ 8 months until HDTV actually gets here) would still be in SDTV
> > > would I even notice any difference?
> >
> > Wait till HDTV gets there then look into it again.
> >
> > > I'm assuming that HDTV recording is going to need a HDTV compatible
> > > tuner card and even assuming they put HDTV out on the freeview channels
> > > the Nova-T's just won't cut it but I'm hoping the new box would have a
> > > firewire out or by that time there would be a UK HDTV card.
> >
> > The European TV technology is so drastically different than the States
> > your best bet is to wait and see how they plan on doing things.
> >
> > > [1] One of these
> > > http://www.samsung.com/uk/products/television/crt/ws32z308paxxeu.asp
> >
> > www.avsforum.com
> > don't buy home theatre equipment without first referencing this forum.
> > They're a bunch of perfectionists, but they understand budgets. I usually
> > just post similar to:
> > "I've got $xx to spend on a Yyyyy. What are some of my best options?" and
> > you'll get good responses of models to look into.
> >
> > > Thanks
> > >
> > > Druid
> >
> > hope this helps.
> >
> > --
> > Steve


ah, yet another reason to wait and see.... Maybe by then there will also be a 
TV-Out card with onboard MPEG4 support as well...  who knows...

I do know 5C will still suck though!

-- 
Steve


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