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FCP 4 Output sync slippage
When we output from any of our FCP Suites (verson 4.5 running on G5s. 4 are using Cinewave cards and 3 are using Aja Io) we are finding that the output TC is incorrect. The edit goes in at the right frame but the timeline seems to start wrong. In the Aja rooms with a 7 frame playback offset the time line starts 1 frame late at least 25% of the time. With an 8 frame offset it seems to start early 75% of the time. In the Cinewave Suites with an offset of 2 the time starts early 25% of the time. With a and offset of 1 the timeline starts late 25% of the time. Percentages are approximate. Since we have had at least similar problems with 2 different output cards we feel that we can narrow things down to Final Cut itself. This problem did not start up until after we switched to FCP4 and the G5s. Our tape machines are located in a central tape room and must be patched for both control and AV. All outputs are SDI with imbedded audio.
On a related note All outputs from one of our Cinewave Suites has the audio outputting 1 frame early.Has anyone else had similar problems? Any help in narrowing down the cause or developing a work around would be GREATLY appreciated!
Chris Keppy
Senior Editor
Corus Entertainment -
6 Replies
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are you opening ETT before or after you load the tape. I found that if i load the tape after opening ETT it gets all screwy. Ever since I started loading the tape then launching ETT it workf flawlessly. i am using an Aja I/O, Dual g4 1.25.
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Over the last few days, when I’ve been concentrating on this problem I’ve tried BOTH inserting the tape first and opening ETT first without any change in the frequency or consistancy of the problem. I also make sure that I run the tape and do a mark in just to make sure that I am getting drop frame TC before entering my in point.
Chris Keppy
Senior editor
Corus Entertainment -
hmmmmmm sorry my easy fix was’nt the problem. It would be nice if everything was that east to fix. Maybe a bad 422 cable?
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The standard offset for Cinewave is 0.5. Also, did you check to make sure that no one had changed the decks DF/NDF setting so that it no longer matches your timeline?
Chris Paul
POV -
The only time you can use the .5 offset is in the capture offset. My capture is fine, it’s the outputting where I have my problem. I can only enter full frame values in my playback offset.
Chris Keppy
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I get exactly the same problem. Just did a clean intall of Tiger + FCP5 to try to fix it and no luck.
DualG5, Tiger, FCP5 running firewire to DSR25.The pain is that the slip is unpredictable, so you can’t simply offset the camera. Fortunately I don’t master very often to DV, but when I do, I just gotta hit and hope – not so fun when your timeline is 1 hour long.
Did you get a working answer to your original post?
Rob
Rob Tinworth
http://www.1021.tv
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