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In doubt about formats when putting material on digibeta
Hi
Where I’m currently working we batch digibeta tapes in Apple Pross HQ.
When editing is done, we put the material back but with no form of conversion.
So my question is, is that the correct way of doing it?
-Do final cut convert back when putting material on tape?The tapes are used for (national) broadcasting, and it’s been done this way for some time now.
So the quality seems to be acceptable for none HD tv. PAL.
I’m just wondering if anything would be gained if we used uncompressed 10bit more the begining or at least re-batched before putting back on digibeta. -
4 Replies
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[Nicki Nørmark] “I’m just wondering if anything would be gained if we used uncompressed 10bit more the begining or at least re-batched before putting back on digibeta.”
You would gain very little other than increased file size.
David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los AngelesPOST-PRODUCTION WITHOUT THE USUAL INSANITY ™
A forum host of Creative COW’s Apple Final Cut Pro, Business & Marketing, and Indie Film & Documentary forums.
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[Nicki Nørmark] “-Do final cut convert back when putting material on tape? “
DigiBeta is 10b unc. When you Print to Tape your Proress sequence (10b Compressed) your Video card convert it in 10b Unc.
I would capture and edit in Proress and make the final render in 10b Unc.
As david points, you wouldn’t get much benefit by capturing 10b Unc.
rafael -
DigiBeta is NOT uncompressed. It is a compressed format, albeit very effective and relatively mild compression. If you are coming out of the tape deck over SDI, what you’re getting is a “decompressed” version of what’s on the tape, because SDI is, by definition, an uncompressed transport. It is always best to avoid concatenating codecs, so if you can, working with the material in a 10 bit uncompressed form is as transparent as you’re going to get, given that the material will be recompressed when it’s recorded back to tape.
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[Mike Most] “DigiBeta is NOT uncompressed. It is a compressed format,”
You are right. Digibeta records 10b DCT compressed. Something similar to Prores.
rafael
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