Join Date: May 2001
Location: Melbourne Australia
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It would be impossible to slow the PAL sound and still maintain a watchable image from your DVD.
Because PAL Video is scanned at 25 FPS and the correct Film Speed is 24 FPS, the Sound on PAL Discs is speeded up to keep in Sync with the faster PAL video image.
Any slowing down of the sound would result in a completely out of Sync situation in a matter of seconds.
It is possible to drop the pitch to the correct level, but once again this does not slow the speed, for the same reason.
Pitch correction is achieved by editing and removing small milliseconds of sound information every second or so.
Because of the small amount of information removed at any time, there are no noticable sound problems.
The sound may still be 4% faster, but the tone of Voices and Musical Instruments sound 100% better.
Most People would never notice the Speedup once the Pitch has been corrected.
Pitch correction at the mastering stage is easy to do, but most studios don't bother.
Maybe if enough complaints get back to the Studios, something will be done about it.
To the best of my knowledge, PAL Speedup is not a problem with any Videotape sourced program, as I understand that NTSC and PAL both scan at the same speed? (Somebody more technical than I, can verify or correct me on that one)
Video Taped- Concerts, Sports and TV Shows, should sound the same in both formats.