Syncing 2 cameras with different frame rates (23.976, 29.97) in PluralEyes (Premiere)

[Sangye]

Hi all,

I made a rookie mistake on a recent concert shoot for a local college band. I had my GH2 recording at 24p, but forgot to have my friend set her 5D mark II to 24p. The GH2 ran the whole time, and has the master audio track. The 5D mark II was used for closeups, and will be added to the GH2 footage to make it more dynamic. Now I'm trying to sync up the footage from these two cameras, and am, for obvious reasons, running into trouble. Without attempting to change the frame rate before running PluralEyes, it seems that roughly the first 1/2 of every song, the footage from the 5D correctly syncs, but after that it's all just added at the end of the GH2 track.

Then I tried conforming the 5D footage to 24p in Magic Bullet Grinder, and speeding it back up by 125% (23.976 x 125% = 29.97) in Premiere, but doing so only changes the speed of the video -- it doesn't affect the audio!

Any super clever ideas of how to get this all working, short of manually syncing up each clip that didn't sync automatically?

Thanks,
Sangye

[dregenthal]

Don't know what you are cutting on so this may not be useful information, but . . .
We shot all day using three entirely different cams (about a week go). Different frame rates AND format.

I'm on a PC and had been using Premiere Pro CS5.5. Was doing the manual sync thing then decided to give Plural Eyes a try. I should also say that I decided to download the CS6 fully functionl trial (which after a day and a half ordered the upgrade). At first I couldn't get it to work but then checked the known problems on SingularSoftwares support page. I found/downloaded/installed the AC3 filter and it's worked like a charm since (probably 90+ percent reliable, for me, in nearly 200 clips).

[Sangye]

Sorry, I wasn't clear. I'm editing on a Macbook Pro, running Premiere Pro CS6 and PluralEyes For Premiere. There doesn't appear to be an AC3 filter for OSX, but I did read somewhere that Perian does the same thing. How does this work? I'll test it soon, but I don't understand what good installing a system-wide codec does for my problem.

[dregenthal]

Sorry, I'm unable to answer that one but you might send an e-mail to SingularSoftware's support (odds are they've encountered your problem before).

Best.

[Noiz2]

You don't have a "speed" problem you have a frame rate problem. Both of those frame rates are video "speed". So you want to change the frame rate but not the speed. Using Grinder you should be able to change the frame rate and not change the speed. So basically take that file and don't change the speed and you should be fine. I believe Grinder does a frame rate conversion not just a crank up/down to change the frame rate. If it does mess with the speed you may need to use a better frame rate converter.

BTW you may not need to do anything unless you want the "24p" look on the close up. Most NLE's allow mixed frame rates.