[opendtv] Re: source programme quality

Bert,

You stated: "However next year, IIRC, the STBs will provide true HD on their
component outputs."
I am not sure where you heard this. I have not had any information to  that
effect. There will be a greater variety of STBs available once they have
been through the "approval" process. Unofficial STBs may work fine but they
must be MHEG5 compatible with AAC+ audio and  H.264 video and there are very
few of these around (yet).

Barry Wilkins

On Mon, Apr 28, 2008 at 3:14 PM, Albert Manfredi <
albert.e.manfredi@xxxxxxxxxx> wrote:

>
> Tom Barry wrote:
>
> > I am actually surprised by this. It does seem true that a
> > good DVD at 480p can have as much detail as bad 1080i
> > or 720p HD, though decent HD also exists, at least for
> > slow moving scenes.
> >
> > But when you add the interlace factor of 576i I'm
> > surprised the difference is not fairly obvious. Something
> > seems wrong here and HD (sans low bit-rate artifacts)
> > should seem obviously better than 576i.
>
> One of us is misunderstranding what Barry said.
>
> As I read it, he said that he CAN tell the difference between SD and HD,
> when viewing with the HDMI interface. What he couldn't see was the
> improvement between 1024 X 1024 and 1920 X 1080.
>
> Here is the paragraph:
>
> Barry Wilkins wrote:
>
> > To complicate this issue is the fact that my screen is
> > only 1024 x 1024 42" with no HDMI. I use the component
> > inputs from the STB which down scales the image to 576i.
> > Nevertheless, I can clearly differentiate between the
> > better image quality on my screen and that of a 42" LCD
> > connected directly via HDMI to the same type of STB
> > running the same demo HD programme content.
>
> So, I read that to say that there IS an improvement with the HDMI
> interface, in screens so equipped. Because HDMI does not downconvert. In NZ,
> as of now, the STBs downconvert everything on the component analog
> interfaces to 576i. That's why only the HDMI setup would show improvement
> with HD content. However next year, IIRC, the STBs will provide true HD on
> their component outputs.
>
> > What I am getting at here is that in 3 weeks of looking,
> > I have not been able to find a demonstration of HD
> > source material received on a STB connected via HDMI to
> > a 1080 x 1920 resolution LCD/plasma screen that improves
> > over what I am seeing.
>
> And this is where he compares 1024p to 1080p, in display resolution.
>
> Assuming I read that correctly, it isn't a bit surprising to me (aside
> from the close-in viewing I mentioned before). So, IMO, Barry should
> probably hang onto his 42" display and wait for the newer STBs with the HD
> component outputs, rather than go to a 1080p display. It's the most bang for
> the (NZ) buck.
>
> Bert
>
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