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Mixing HD and SD Formats – Interlace Issues
I often have to edit 1080i, 720P, and 10 Bit Uncompressed 16:9 clips together in the same Timelime with a final delivery on DVD. Occasionally I get field issues in selective clips within the sequence, they range from stuttering to visual field lines appearing.
Any thoughts on how to avoid this?
Thanks,
BobBob Douglas
FX Productions
http://www.fxpro.net -
3 Replies
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This is very complicated topic.
What version of Final Cut are you using? What framerate was your footage shot at? Is there any 24fps footage?
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I’m using FC Studio 2. Framerates are 60i for 1080i, 30P for 720P, and 29.97 for the SD footage. No 24fps footage.
Bob Douglas
FX Productions
http://www.fxpro.net -
Everything’s 29.97fps, so that’s fine. Are you seeing these problems on your broadcast monitor in Final Cut, or only on DVDs?
If it’s just DVDs, I think I know what the issue is. I’m going to guess that you are not exporting directly to Compressor from Final Cut. Not doing that could cause this problem. Quicktime can’t tell what the field dominace is supposed to be. Using “Export to Compressor” allows Final Cut to tell additional info to Compressor.
If you are exporting directly to Compressor, then this is probably just one of the many, many FCS2 bugs that Apple, a Fortune 500 company that made $2 billion in profits last year, allowed to slip past their QC process.
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