HELP! Shot an assignment with mismatch of project frame rate vs record frame rate

[Marcos Montenegro]

Hey guys. I completely forgot to change the project frame rate to 30fps; I left it at 24FPS, however I shot at 30FPS. Now the video and audio are out of synch, video plays slower than audio regardless if I change the project properties on my NLE to 30FPS. Anyone know a quick fix to this?

Thanks

 

[Steve Marshall]

When you export from RCX-P you can choose the overwrite the clips framerate. That might fix it.

 

[Marcos Montenegro]

Steve>

That didn't work, unfortunately. The workaround can be done 2 ways:


1) Cut/Edit the video by playing it at a faster playrate (1.25) so it syncs with the audio, OR
2) Cut/Edit the video by slowing down the audio by 75%.

I tried both of the above, and they work directly with the RED files. When I try it with exported .MOV files it falls apart...weird.

When you export from RCX-P you can choose the overwrite the clips framerate. That might fix it.

 

[Mark Toia]

I feel for you guys that have to shoot, 30, 29.97, 24... Such as crazy mismatch system you have over there.

I'm glad us (the rest of the world) shoot @25fps... we never get caught out. ... ooops, I think i just jinxed myself.

What I have done in the past, and it wasn't pretty is I did a time squeeze.
I got my shot in the FCP time line. I put the audio track beneath it... cut on the clapper and cut on the end shot and voice.
then kept adjusting the audio speed bit at a time, I think I ended up at 102.33% something like that... and it worked.
Painful exercises, but it worked.

 

[martinnoweck]

what mark said - i did something similar in avid, timestretching the audio there.
best wishes, m

 

[Marcos Montenegro]

Can't stretch the audio as this is a music video. So you know a little bit of my setup, I had a Zoom H2N on site recording the whole time while huge speakers played the mp3 over and over. When I stopped recording I had a guy on video with the clapper.

Anyways, its going to be a painful exercise by the sounds of it.

 

[Paul Russell]

Twixtor?

 

[D Fuller]

Steve>

That didn't work, unfortunately. The workaround can be done 2 ways:


1) Cut/Edit the video by playing it at a faster playrate (1.25) so it syncs with the audio, OR
2) Cut/Edit the video by slowing down the audio by 75%.

I tried both of the above, and they work directly with the RED files. When I try it with exported .MOV files it falls apart...weird.

In Premiere or After Effects, you can change the file's frame rate very easily. Right-click on the file in the project window and choose "Modify-Interpret Footage" and you'll get a window where you can specify the frame rate you want the clip to use. This is not a "speed change" effect like time compression, it actually changes the way the program interprets the project frame rate. So there will be no artifacts.

Download a trial version and try it out.

 

[Marcos Montenegro]

David:

I will try this and let you know.

Thanks for the tip!

Marcos

In Premiere or After Effects, you can change the file's frame rate very easily. Right-click on the file in the project window and choose "Modify-Interpret Footage" and you'll get a window where you can specify the frame rate you want the clip to use. This is not a "speed change" effect like time compression, it actually changes the way the program interprets the project frame rate. So there will be no artifacts.

Download a trial version and try it out.

 

[Stephen Strangways]

...But the run-time of the video will change significantly, throwing it out of sync with the audio. It sounds like you'll need to do an edit with lots of cuts, re-syncing each cut manually and holding it only as long as it appears reasonably in sync.

 

[Jaakko Rinne]

Twixtor?

I second this. Had a similar situation in a documentary, the cameraman had shot at 30fps for a day in a project where all the other material is at 24. For the sync shots Twixtor seemed to work best. We also tried changing the fps with a motion weighted blend in Compressor and with Timewarp in After Effects but they left too many artifacts.

 

[Nick Pasquariello]

You may be able to conform it in Cinema Tools. It comes with Final Cut Pro Studio 3 and everyone tends to forget it exists.

I never used it with audio, unfortunately, but I know it will take a clip, and then tell that clip to use a different playback frame-rate. It doesn't blend any frames or interlace. I have used it in the past, taking overcranked ProRes shot at 60 FPS, and told to playback at 24 FPS. Zero render time. It's just changing a meta-data tag.