thread: Terrestrial HDTV...When, Where etc.
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Old 27-07-2004, 5:37 PM   #6
StooMonster StooMonster is offline
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Quote:
Originally Posted by Skiddins
As with NTSC v's PAL, the US (and presumably due to it's proximity with the USA, Canada as well) has adopted a new standard, perhaps without comparisons with other HDTV broadcasting systems.

The Australians performed laboratory and 'real world' tests on the the proposed systems (ATSC in the USA, DVB in the UK and I believe the rest of Europe) and chose to go with DVB instead.

DVB is used at the moment in the UK for Digital terrestrial broadcasting, which I have, and most of which is broadcast in 16:9 (interestingly with the exception of most US programmes we get that are from their major broadcastors, the exception, from things I have watched being anything from HBO).

DVB is also 'futureproof', meaning when the HDTV system is finally developed, it can still be broadcast using DVB.

My main comment about picture quality is due to the differences in the systems and the quality produced.

This is what happend with NTSC originally, whence the USA and Canada having Colour before anywhere else, but the quality was and still is, crap (525 line) compared with PAL at 625 Line.

Skiddins
HDTV has two supported resolutions (1920x1080 and 1280x720 pixels) and everyone uses either of these. There are two camps (similar to PAL / NTSC) for the vertical refresh rate where USA/Canada is 60Hz and UK/Europe/Australia is 50Hz. This is the only real difference, and it results in 3:2 pulldown judder with movies in the 60Hz region and 4% speedup in the 50Hz region (similar to DVD).

Simple nes pas?

StooMonster
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