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Audio timebase conversion problem
Dear COW,
I am working on a project originated and finishing on DVCPRO HD 720 at 23.98 fps. One of our editors mistakenly did the sound edit in a DV NTSC sequence. I tried copying and pasting this edit back into an HD 720 sequence. Most of the sound syncs up fine but some tracks have a partial grey bar over them (on the actual track, not at the top of the timeline as with render indication bars) and are wildly out of sync in those spots. We can’t afford to go back and re-edit the audio. Anyone suggestions?
Thanks,
Jordan
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2 Replies
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Jordan,
What’s the source of the audio? If that audio came originally from external sound devices as BWAV files this behaviour is “normal”. Audio Playback is interpreted based upon the Final Cut Pro project settings during the import of the audio file.
Your problem now is that your now after you just copied the files from one project to the other Final Cut has written the audio interpretation into the project file and you can’t get rid of it any more.
Hopefully you have a backup.
To move misinterpreted audio from one project to another you never should have both projects open the same time – that’s risky.
What you can do is to clear anything in the sequence but audio. To be 100% sure make the audio offline. Then export the sequence as XML.
Open the XML with a text editor and replace following “30 ” with “24 ” and “DF ” with “NDF “. Save the XML.Now in your target project make sure the project settings are set to 23.976. Then import the XML and reconnect all audio. In most cases the audio is re-interpreted at the correct playback speed.
Good luck
Andreas
Spherico
https://www.spherico.com/filmtools -
Andreas-
Thank you for your reply. Thats a good thing to know how to do. However, it turned out my problem was something to do with the render files. I trashed all of my audio render files and it played back fine- problem solved. PS: audio was originated on HVX 200- same as sequence settings. Thanks again,
Jordan
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