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How to sync audio and video when they're half frame out of sync?

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Adam Dorsz
How to sync audio and video when they're half frame out of sync?
on Jan 29, 2019 at 4:58:23 pm

Hi,

I'm working on a project where the audio and video has to be 100% synced. When I zoom in as far as I can in order to line up the waveform, the video clip waveform is off by half a frame to the audio clip. If I move it left or right, it jumps by one frame and is out of sync.

is there a way I can move the clips on the timeline by less than a full frame?

https://imgur.com/a/uCQOzcN

Thanks!


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Dave LaRonde
Re: How to sync audio and video when they're half frame out of sync?
on Jan 29, 2019 at 11:28:20 pm

If you double the comp's frame rate, you can move it that half-frame you need.

Dave LaRonde
Promotion Producer
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA


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Adam Dorsz
Re: How to sync audio and video when they're half frame out of sync?
on Jan 30, 2019 at 8:08:33 pm

That worked, thank you!


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Tero Ahlfors
Re: How to sync audio and video when they're half frame out of sync?
on Jan 30, 2019 at 6:31:47 am

There are no half frames in video but audio can be moved in smaller increments. I don't know if AE is capable of this but NLEs do support moving audio in milliseconds/samples.


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Roman Dexty
Re: How to sync audio and video when they're half frame out of sync?
on Mar 4, 2019 at 3:34:50 pm

Hey!

Just change the framerate of main composition to x2 (30>60 for example), shift layers, then precompose them and bring framerate back to normal


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