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Video Playback problems, dropped frames
I’ve got problems… I’ve been editing with Final Cut Pro for over 5 years and I’ve always been able to figure out anything that went wrong… this one is stumping me.
Here is the sit:
FCP 4.5, QT 7.2, OS X 10.4.10 on a 2 Ghz PowerMac G5 with 2 GB Ram
I’m having playback/dropped frames and speed issues when I playback my movie from the sequence.
Its only a couple minutes long so far and super simple (i.e. only one track of video and 2 audio tracks) Almost everytime I go to playback the video, the video speeds up, slows down, audio gets out of sync. Sometimes the “Dropped Frames” warning will come on and stop the playback all together.
I’ve tried all the standard things I know about:
Making sure that the image in the canvas is too big for the screen.
Copying the project, deleting it and running it on another harddrive
Disconecting my deck/camera and running FCP without any video device attachedAll the sequence settings seem to be normal.
If I export to a quicktime movie and play the movie out of QT the problems go away so I know its a FCP playback issue.
The only thing that I can see that seems a little off is when I open one of the video clips in Quicktime (from the drive not from FCP) and get the info for that clip the Frames Per Second seem to be off a little bit. Some of the video clips (not all) all have a different FPS… 29.96, 29.99, 30.19… I’ve never noticed this before, however, it seems a litte weird. These are all clips that I have imported recently. Could it be that my Sony VX1000 that I’ve been using as my cature device has finally gone capoot??
I don’t know! Please help! I have a HUGE project in a couple weeks and I need to figure this out.
thanks!
Carson
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3 Replies
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If you suspect the camera, do you have another way to capture? I’ve never seen a set of odd frame rates like that, so I too suspect something around that camera…
Jerry
Apple Certified Trainer
Author: “Jerry Hofmann on Final Cut Pro 4” Click here
Dual 2 gig G5, AJA Kona SD, AJA Kona 2, Huge Systems Array UL3D
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I don’t want to re-capture everything and start over, however, this may be my only option. Better to learn now then in the midst of a bigger project –
Thanks! Anyone else have any ideas??
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There is a function in FCP that is often overlooked… and it can help with many audio and video “skipping”, “sticking” and “missing” problems.
You should “Mixdown” the Audio for playback before you dub out of FCP, or during the edit, if you have audio/video stuttering, drop-outs, sync-slippage, or freezes.
NOTE: Mixdown has even been demonstrated to help with slipping, skipping problems (or “missing” audio clips) for files being EXPORTED as QT (or similar) files out of FCP.
First, SELECT ALL of your audio tracks (highlight them) on the timeline, then:
Sequence Menu > Render Only > Mixdown.
You should see a dialog box telling you its rendering.
It might seem to make little sense that “Mixing down” even simple audio tracks will “fix” complex video “freezes” or random audio dropouts to tape or export, but it CAN.
NOTE: It does not matter of you only have one audio track, if there are random freezes during output, you should try the Mixdown.
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