Need Help Syncing sound on GH2 footage

C

Chadac

Member
I'm editing a project that was shot on the AF100 and the GH2. The project was shot in 29.97fps on the AF100 and 23.98 ramped 80% on the GH2 to get it to shoot 29.97.

The problem is that they aren't syncing. The project sequence has been set to a 29.97 frame rate and they play back perfectly, but when I try to sync the audio from the AF to the
slate on the GH2 it doesn't match. It looks like it might be drifting.

Do I need to do something to the GH2 footage to have it match?
 
Chadac said:
I'm editing a project that was shot on the AF100 and the GH2. The project was shot in 29.97fps on the AF100 and 23.98 ramped 80% on the GH2 to get it to shoot 29.97.

The problem is that they aren't syncing. The project sequence has been set to a 29.97 frame rate and they play back perfectly, but when I try to sync the audio from the AF to the
slate on the GH2 it doesn't match. It looks like it might be drifting.

Do I need to do something to the GH2 footage to have it match?
Click to expand...

What do you mean, "23.98 ramped up 80% on the GH2 to get it to shoot 29.97"...

If you were shooting with the GH2 at 23.976, why not 'telecine' it with a 3:2 pulldown to match the 29.97 material?
 
You can't shoot 29.97 on the GH2 in 1080p. So they have an option in camera to over crank by 80% which would slow it down. (23.976 / .8 = 29.97).

How would I go about with telecine?

 
I found that in Premiere Pro you can change the frame rate of the GH2 to an assumed frame rate to have it match.
Select the GH2 footage after it's imported - right click - select modify - interpret footage - assume this frame rate - type in 29.97
 
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