HDMI cable? and upscaling dvd

weegie.geek

aliEnRIK wrote: »

Did you bother to READ the posts I posted Geek?

out of sheer intrigue Geek. If you stood here with me and it was CLEAR that there was a difference in quality between the cables, would you agree that there was or just tell me NO as thats the sort of person you are?
720P, 1080I and 1080P could easily ALL have exactly the same 'bitrate'. All dvds and blurays are compressed and its down to the bitrate of that particluar scene thats showing at the time. Which basically means that a faster scene would need more bits so you dont get that horrible BLOCKING effect. On the downside more bits means more possible errors in the hdmi.
On top of that 720P is sending the FULL picture down each frame whilst 1080i only sends half down so in 'some' cases 720p will actually be sending more information down the hdmi than 1080i (1080P sends double that of 1080i and is therefore the most likely to have errors in the signal)
Also, any dvd players worth their salt now UPSCALE which means ANY dvd would be over and above what the specs of the cable can take (One or more of the websites above specifically say that due to the constraints of the hmdi spec that even the 'latest' cables do NOT allow ALL information down the line)
On that note its down to quite a few varying factors but my Pioneer definitely looks better upscaled to 1080i than 720P. Other tvs might look better with 720P though.

If I thought it looked better I'd be happy to say so. I've already said that I trust an oscilloscope, common sense and logic way more than I'd trust my eyes though. Speaking of eyes, I'd be inclined to run both the better and worse cable through the eye pattern test with an oscilloscope.

Thanks for the lesson on video compression. :rolleyes::D A bit pointless though, since 720p, 1080i and 1080p are all at a constant bitrate when travelling down an hdmi cable, and a 720p static image needs the same bitrate as a 720p explosion.

The mpeg2/mpeg4 is decompressed by the player, and uncompressed video is piped down the cable.

I'd imagine where upscaling is concerned, which is you going off at another tangent, it's down to the native resolution of the screen, and the chipset that does the upscaling.

aliEnRIK wrote: »

But basically im glad youve posted as you now agree that (dependant on whats being shown) some information that starts at the dvd end will NOT make it to the screen end of a hdmi the same

Are you insane?

Myself, 'scaper and the others have been saying that forever. I don't "now agree", you've changed your stance.

You specifically said that using a fairydust cable or power cleaner enhances the picture's three-dimensionality.

In what was is that in layman's terms? It's a meaningless term that's used by people who want to justify something in the fuzziest terms possible.

Missing information doesn't decrease the sharpness of the picture, it'll cause picture breakups. It doesn't make the colour bleed.

aliEnRIK

I hang my coat up on this thread. Im a tad bored of it now........bin fun though