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Audio Not Syncing after exporting to low res file- timeline?

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jamie mann
Audio Not Syncing after exporting to low res file- timeline?
on Jan 17, 2012 at 5:02:32 am

Working with material from 2 5D mark II cameras, and one 7D camera, as well as material from an iPhone 4. The timeline settings are visually:
1920 x 960 (custom 2:1 widescreen crop)
square pixels
no upper/lower setting
23.98 frame rate

audio 48.00 khz

timeline problem: exporting to quicktime the file loses audio synch at a certain point about 6.5 minutes into the 55 minute file. It then becomes more significantly out of synch as the file plays to the end by several seconds. I have mixed down the audio to one " .aif " file at 48.00 khz (the audio rate was recorded at 23.96...

I have tried deleting some early iPhone 4 footage from the timeline to see if that has affected it due to different frame rate or other settings.

I have tried an audio mixdown.

so far no luck.


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