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23.98 is actually 24fps in Final Cut?
I’m working on a project where we capture a 23.98 tape to a ProRes file at 23.98. We then create a proxy file, which audio mastering use to conform foreign language reels to match the video in ProTools.
However we are finding that when we bring everything back into Final Cut to sync the picture and the new audio that the audio is exactly 0.1% slower than the video. This suggests that Final Cut is actually interpreting the video as 24fps. The solution is for audio to speed up the audio by 0.1%, this then gives us perfect sync.
I’ve checked all the settings in both Final Cut and ProTools and both are set to run at 23.98, the video and proxy both say they are 23.98.
I’ve done a test by exporting 2 hours of black at 23.98 and at 24. If I drop these back into the same Final Cut sequence at either 24 or 23.98 they are the same length as each other, also doing a frame count they both have the exact same number of frames. At this duration there should be a difference of around 7 seconds.
Am I going mad here or is this a known problem with Final Cut where it reads 23.98 as 24?
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1 Reply
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If your timeline is 23.9 so is your export, but see here:
https://forums.creativecow.net/thread/8/1109991
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