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HVX500: best 23.97 to DV NTSC conversion?
I am editing in FCP 6.02, with footage shot using a HVX500 at slow-motion 60fps (23.97 is the frame rate of the footage importred into FCP). Frame size is 960×720.
Now I need to output to regular DV NTSC, for DVD and DVCam, since the material will go to standard resolution TV (NTSC). So, I exported a native QT Movie from my sequence, preserving all the native settings, so I have a self-contained master. Then I imported this into FCP and placed it into a DV NTSC 4:3 sequence, interlaced, 29.97 fps… regular DV NTSC. Rendered and burned a DVD using Toast 9, which did the conversion to m2v & AC3.
The resulting DVD shows the inevitable stuttering that comes from the pulldown (24fps becoming 30 fps via duplication of 6 of the 24 frames). I know this is a necessary mathematical comensation, BUT, what is the best way to minimize this artifact? Is tyhere some other route I should be attempting?
Any info much appreciated!
Alan Langdon
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3 Replies
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For DVD, you can simply make a 23.98 progressive DVD. All necessary 3:2 pulldown will be handled by the DVD player (all DVD players).
As far as a DV master, you can simply nest your timeline into a 23.98 dv timeline and FCP will add the proper 3:2 pulldown upon play out.
Make sense?
Jeremy
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Great… SOunds almost too good to be true, but I’ll give it a shot.
So: I need to master to DVCam NTSC, so I should just plug the HD master into a DV 24p timeline and Print to Video?I am achieving the pulldown no problem, but it looks jerky when things move horizontally in a linear manner/speed. I have noticed that consumer DVDs (movies, etc) are encoded with a more complex pulldown that includes a interlacing of those repeated frames, which seems to make things smoother… Any info on how to do this sort of pulldown with those repeated frames interlacing?
thanks for your help!
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[Alan Langdon] “So: I need to master to DVCam NTSC, so I should just plug the HD master into a DV 24p timeline and Print to Video? “
Yep.
[Alan Langdon] “I am achieving the pulldown no problem, but it looks jerky when things move horizontally in a linear manner/speed. “
Ah, but there is a problem. If you put a 23.98 movie in a 29.97 Sd timeline within FCP, proper 3:2 pulldown is not introduced. FCP performs a 2:2:2:4 pulldown. That’s why its imperative to put the footage in a 23.98 dv timeline as FCP will play out the proper 3:2 pulldown.
[Alan Langdon] “Any info on how to do this sort of pulldown with those repeated frames interlacing? “
Which repeated frames?
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