April 12, 2006
The Real Number Of The Beast
Is 23.97602.
Posted by: Pixy Misa at 04:29 PM | Comments (5) | Add Comment | Trackbacks (Suck)
1
I know. What were they thinking? Were they thinking? Or was this just the first kludge that worked, and we've been stuck through the need for backward compatibility ever since?
Posted by: HC at April 13, 2006 04:49 AM (qmTWt)
2
That's the actual frame rate per secondfor theater films, right?
Posted by: Steven Den Beste at April 13, 2006 04:20 PM (+rSRq)
3
No, theaters went with the more logical 24 fps. NTSC was originally 30 fps, but when they added color in 1953, they fudged things to a misbegotten 29.97, using the saved bandwidth on color while retaining backward compatibility with the extant black and white sets.
In order to play back 24 fps material in a normal seeming fashion on 30 fps televisions, you have to repeat frames every so often - every fourth frame. The simplest solution in dealing with the problem for 29.97 fps sets was to keep the same ratio of 1:1.25 (24:30) - and that's how we ended up with dvds formatted in 23.97602 fps... and the consequent truly irritating problems in converting video from one format to another. To say nothing of the problems involved in synching the audio up again.
In order to play back 24 fps material in a normal seeming fashion on 30 fps televisions, you have to repeat frames every so often - every fourth frame. The simplest solution in dealing with the problem for 29.97 fps sets was to keep the same ratio of 1:1.25 (24:30) - and that's how we ended up with dvds formatted in 23.97602 fps... and the consequent truly irritating problems in converting video from one format to another. To say nothing of the problems involved in synching the audio up again.
Posted by: HC at April 14, 2006 06:52 AM (qmTWt)
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