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Old June 12th, 2009, 12:49 AM   #1
Regular Crew
Join Date: Dec 2007
Location: San Diego, Ca
Posts: 31
Audio is out of sync

I was able to render out my footage to "Quicktime Movie" no conversion, but now my audio is out of sync a few frames.
I have about 90 minutes of various footage HDV, Motion, Livetype, lower res helmet cam footage.
When I output a smaller section the sound is fine.
Any suggestions?
Scott Barnhill is offline   Reply With Quote
Old June 14th, 2009, 12:01 AM   #2
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Join Date: Jul 2007
Location: Los Angeles, CA
Posts: 628
Audio drift is common in larger edits. I've seen this happen quite a bit. My advice isn't pleasant but it will work. Determine the largest increment you can export before the audio drift, then export multi segments without the drift. Open each in QuickTime Pro. Copy each into one compiled QuickTime and do a "Save As".

The other option is less painful but somewhat dangerous. Go to your Capture Scratch. Delete all your render files for this project. Re-Render everything. Try Export again.
It's dangerous because you can inadvertently delete the wrong render files.

The last option is to export all the audio tracks, merged down to two tracks. Simply send to Soundtrack Pro. Render everything to a stereo mix and then send back to FCP. Lay back into your project and delete all other audio (save those two tracks from STP).
This will avoid it being a render issue or processor issue while creating such a large file.

Hope this helps,
Christopher Drews is offline   Reply

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