|
|
Posted by Jukka Aho on 10/11/06 00:19
Joshua Zyber wrote:
> The fact is that PAL cannot play film-based theatrical movies without
> SPEEDING THEM UP 4%. That's a fact.
>
> PAL is an *incremental* improvement in resolution, chroma, and
> bandwidth, at the expense of having to watch your movies with the
> actors speaking in chipmunk voices.
1) 4% speedup is only a little under a semitone.
2) It has been technically possible to time-compress audio without
shifting the pitch for quite a long time now.
3) To my European eyes, 3:2 pulldown is irritating and makes the
motion... odd. You can perhaps alleviate this problem with some sort of
intelligent standards conversion device that would apply fancy
motion-estimation/compensation algorithms to the film-originated 24p
material - this way creating new synthesized frames with the correct
motion paths out of thin air [1] - but I don't believe those kind of
things are used much (and I know for a fact that you don't see them
being used on NTSC DVDs where the 3:2 pattern is usually created with
the BFF, TFF, and RFF flags, instead of encoding a fancy interlaced,
motion-compensated version of the movie.)
_____
[1] See Snell & Wilcox "Alchemist Ph.C"
--
znark
Navigation:
[Reply to this message]
|