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Syncing 25 frames to 60 frames

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John Weber
Syncing 25 frames to 60 frames
on Jun 26, 2014 at 7:46:45 pm

I'm trying to sync up footage of the same action from two different sources. One is a skype interview recorded at 25 FPS, the other is a Canon vixia at 60 FPS. I've tried transcoding the footage to match each other, and it starts off fine but is always out of sync by the end. Need advice to fix this please, and reshooting is not an option at this point.

Thank you.


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Dave LaRonde
Re: Syncing 25 frames to 60 frames
on Jun 26, 2014 at 8:05:38 pm

That's the delivery frame rate: 25 or 59.94?

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


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John Weber
Re: Syncing 25 frames to 60 frames
on Jun 26, 2014 at 8:26:07 pm

The final video will be uploaded to YouTube at 30FPS. 60 would be ideal, but if 25fps is the only option I am more than willing to work with that.


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Dave LaRonde
Re: Syncing 25 frames to 60 frames
on Jun 26, 2014 at 10:02:35 pm

The 59.94 footage should work OK in a 29.97 timeline.

You can use Compressor to do a frame rate CONVERSION to 29.97. A conversion is different than conforming the the 25fps footage to 29.97, which would make the footage duration shorter... and you don't want that.

Then export to create a 29.97 file for eventual delivery.

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


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Mark Suszko
Re: Syncing 25 frames to 60 frames
on Jun 27, 2014 at 1:59:05 pm

And of course, audio sample rates need to match or they will drift too.


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