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interlacing third and last try
[last try, now with special char. removed]
All,
I recently converted from AVID to Final Cut Studio and have benefited ENORMOUSLY from searching and reading the threads here (if only such a resource existed way back when I started learning AVID).
One recurring question Ive seen in a variety of guises has to do with interlacing problems. Or, perhaps I should say dealing with interlacing issues seems to be a recurring answer to many problems posted here. Interestingly, I never came across this issue when using AVID and I was mixing tons of different formats. Yet, Im constantly struggling with this in FCP.
Let me give one example. Due to the nature of my work (Im a teacher and make lots of clips for classroom illustrations) I do a lot of capturing from DVD. On my system we have a tascam DV-DO1U DVD player going component out into an AJA Kona breakout box. Theres no problem capturing (Im capturing 10 bit uncompressed, lower field dominance with same sequence settings) and playback on both my Apple cinema display and my Panasonic BTLH1700w HD monitor look great (well, great for having captured a compressed signal over component). When, however, I export to quicktime (or anything, for that matter), the image becomes very feathered. If I deinterlace before exporting, then it looks fine.
Two questions and a plea:
1) Ive done a lot of experimenting with different field dominance settings (lower, upper, none, etc.) and I get the same interlacing problem on export. Are there suggestions for other things to try?
2) While Im happy to de-interlace the image, it just seems in my gut that Im killing the quality of an already low-quality capture. True? Does a progressive scan DVD player (or not) influence this problem?The plea: it would be great to have some of the gurus here put together a primer or tutorial on field dominance issues. At the very least, it might help reduce questions by providing a resource to point others to. And, an advance apologetic plea, if such a primer already exists (I searched but couldn
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13 Replies
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Well the skinny is yes, FCP doesn’t know what to do with interlace. It’s always a mess. And it doesn’t know what to do with 480 vs 486 either.
Now are you actually loading these DVD’s progressive? Like 30p? Or are they 29.97 with 3:2 pulldown?
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[Aaron Neitz] “FCP doesn’t know what to do with interlace. It’s always a mess.”
I disagree. If you stick to the presets, FCP will handle the interlacing correctly. Problems arise when you either mix formats or stray from the presets.
Arnie
Now in post: Peristroika, a film by Slava Tsukerman
https://www.arniepix.com/blog -
[Eric Faden] “When, however, I export to quicktime (or anything, for that matter), the image becomes very feathered”
How are you viewing the exports? Are you bringing them back into Final Cut or are you just watching in the Quicktime Player?
Sean
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[Eric Faden] “Due to the nature of my work (Im a teacher and make lots of clips for classroom illustrations) I do a lot of capturing from DVD. On my system we have a tascam DV-DO1U DVD player going component out into an AJA Kona breakout box.”
Eric,
Instead of capturing DVDs using hardware, try using Streamclip, which is specifically designed to do the job. It allows you to capture to any QT codec. Its possible that it may allieviate many of your interlacing issues.
David
David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los AngelesPOST-PRODUCTION WITHOUT THE USUAL INSANITY ™
A forum host of Creative COW’s Business & Marketing, and Indie Film & Documentary forums.
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Eric,
I’m glad you brought this up. I have similar problems and I’ve tried many fixes. My big problem, however, is getting clean text when I export for playback on progressive monitors, e.g. a DVD that plays on a laptop. Do I simply need to buy a better deinterlace plugin? The FCP plug doesn’t cut it for clean text. Or can anyone running FCP 6 tell me if you can set your graphics to no field/animation codec and then keep the rest of your timeline interlaced?Thanks!
Brett
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David,
How’s it going? I haven’t talked to you in a long while… I was talking to Ron Shook who said you were in Chicago (that’s where I am) for a gig recently.best,
Brett
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Hey Brett, long time no see/no hear. Yep, I was in Chicago with my head burried inside FCP for five days, but I did manage to get paroled for a few hours for dinner with Ron.
How’ve you been? Is your brother still working with you?
David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los AngelesPOST-PRODUCTION WITHOUT THE USUAL INSANITY ™
A forum host of Creative COW’s Business & Marketing, and Indie Film & Documentary forums.
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[Brett Nelson] “My big problem, however, is getting clean text when I export for playback on progressive monitors, e.g. a DVD that plays on a laptop. Do I simply need to buy a better deinterlace plugin? The FCP plug doesn’t cut it for clean text. Or can anyone running FCP 6 tell me if you can set your graphics to no field/animation codec and then keep the rest of your timeline interlaced?”
Brett,
I can probably help you. First, what type of video are you cutting?
David
David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los AngelesPOST-PRODUCTION WITHOUT THE USUAL INSANITY ™
A forum host of Creative COW’s Business & Marketing, and Indie Film & Documentary forums.
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Hi Sean,
I’ve done both with the same results . . .
best,
e -
Thank you David … Im trying it out right now.
best,
e
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