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PAL to NTSC Audio Conversions
Howdy all-
I’ve got some audio that was created for both a PAL and NTSC animated program. The program is the same, it just got flipped.Somewhere during the process a series of the NTSC mixes were lost, yet I still have the PAL versions. These are shorter in duration than their NTSC brothers due to the frame drop.
Can anyone recommend a way for me to adjust the PAL versions to marry with the NTSC versions?
Thanks very much!
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2 Replies
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Try using the time stretch function in Soundtrack Pro to match the duration.
Normally there should not be a duration difference. How was you conversion done?
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If you are talking about a 24 to 25 frame speed up, that is 4%. If it is 23.98 to 25 it is a bit trickier.In theory it is 4.1% but on a long form show the sync will drift as you need to calculate to about 4 decimal points to be totally accurate (4.106 is a quick calculator estimate). I had to correct a two hour telemovie a few years ago and I needed to trim to 5 or 6 decimals to get perfect sync. It was a bit trial and error and I wish I had written the number down.
To correct pitch I only recommend MPEX3 or Pitch N Time.
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