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Re: 24 F.P.S. and PAL
- To: telecine at sun.alegria.com
- Subject: Re: 24 F.P.S. and PAL
- From: Dave.Satin at SMAvid.com
- Date: Wed, 21 May 1997 09:10:28 -0500
- Comments: Authenticated sender is <DAVE at dALE.SMAVID.COM>
- In-reply-to: <199705202352.TAA11026 at newman.concentric.net>
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- Organization: SMA Video Inc.
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What Spence is talking about is called an "off speed" transfer.In a
nutshell, it works like this:
Step 1. Transfer Pix and audio at 25 fps (no it does not matter if
the material was shot at 24 or 25 fps) onto a D1 or DCT machine at
655/50 Hz (Pal).
2. Use the special "offspeed" playback mode to playback the 50 Hz
tape at 48Hz.
3. Use either the Digitalvision or Sony Anamorphic format converter
to vertically resample the 655 line master down to 525 lines, and
insert 3:2 pulldown sequence.
4. Since the offspeed playback is slowed down 4%, the audio must be
cross-resolved to the new 59.94 Hz timebase and pitch corrected.
5. Enjoy your newly created NTSC master with all the correct
geometry, pans/scans, and grading as the original Pal transfer, but
you only transferred the film once!
Executive Vice President 212.226.7474/V
Director of Engineering 212.941.0439/F
SMA Video Inc.
100 6th Avenue 10th Floor
New York, N.Y. 10013-1689
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