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Frame rate conversion yields non-sync audio

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Gerret Warner
Frame rate conversion yields non-sync audio
on Oct 8, 2015 at 4:48:43 pm

I feel as if I've solved this before, but I can't remember how.

I'm trying to add video diaries from a smartphone as 30fps MP4s to a ProRes 422 24fps timeline in FCP 7, but when I convert the files in Compressor the resulting videos have lost sync.

Thanks for any help.

GW


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Shane Ross
Re: Frame rate conversion yields non-sync audio
on Oct 8, 2015 at 5:00:21 pm

OK...this being from a phone...30fps straight up? or 29.97? 30fps straight up converted might be an issue. Because 30fps is a non-broadcast frame rate. And your sequence is 23.98, right? not 24fps straight?

Try MPEG STREAMCLIP possibly...although it's not good at frame rate conversions. What I would do in your shoes is convert the footage to 29.97 ProRes...and import that. Avid does a good job of mixing frame rates properly.

Shane
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