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losing sync upon export
I am working on a dual 2.0 G5 with 2.5 Gb of Ram. I’m having sync problems with longer clips (10 minutes or more) when I export them as: Final Cut Pro movies and MPEG2. The sync starts out about 6 frames offset in the beginning and drifts into place towards the end. If the clip continues, it drifts out of place towards the other direction!
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2 Replies
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There is a function in FCP that is often overlooked… and it can help with many audio and video “skipping”, “sticking” and “missing” problems.
You should “Mixdown” the Audio for playback before you dub out of FCP, or during the edit, if you have audio/video stuttering, drop-outs, sync-slippage, or freezes.
NOTE: Mixdown has even been demonstrated to help with slipping, skipping problems (or “missing” audio clips) for files being EXPORTED as QT (or similar) files out of FCP.
First, SELECT ALL of your audio tracks (highlight them) on the timeline, then:
Sequence Menu > Render Only > Mixdown.
You should see a dialog box telling you its rendering.
It might seem to make little sense that “Mixing down” even simple audio tracks will “fix” complex video “freezes” or random audio dropouts to tape or export, but it CAN.
NOTE: It does not matter of you only have one audio track, if there are random freezes during output, you should try the Mixdown.
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That did it! Thank you! Only had one audio track, but it fixed it anyway. Cheers.
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