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View Full Version : Audio sync with slo mo 24Pn in FCP, help!



zoostory
10-29-2006, 10:19 PM
Hey,

So I am editing a rock video for some friends. They really wanted to give the editor a good time, so what they did is shot all the sync masters MOS in slo-mo. No slate, no reference audio. They sped the audio up 200% so the lead singer sang really fast, the theory being that when slowed down her lips would sync perfectly to the audio.

Well, not only do I have to eyeball lip-sync to the master track, but there is sync-drift. Looks like the video is slower than the audio, and needs to be sped up by approx 100.39%

While I can do this temporal compression to each track, I'd rather not if it is something with frame rates or conversions that I am not aware of.

I do not have the original MXF files, only quick time files, DVCPRO HD 720p at 23.98 fps

Help!

AshG
10-30-2006, 01:25 AM
Because the frame rates are not EXACT, you will have this issue. I did a music video shot in 60P and had to speed up the song to 249.9958% to get sync. That is because you are REALLY shooting 59.94 FPS and editing it at 23.98 FPS... I used cue cards with lyrics/song times to help sync.


ash =o)