USD and Quicktime in pull down. Urgent

[matt connolly]

From what I've seen, speed (30 / 29.97) and code (ND / DF) and sample rate (48k / Pull-up / pull-down) are all independent variables. It depends on how you work.

I work at 48kHz, 29.97DF. This means that 1 frame is 1601.6 samples. This would be the same for 29.97ND. Source tapes come in at 30ND, so I varispeed them by -0.1% = pull-down to equal 29.97 frame rate *and* 48kHz = 1601.6 samples/frame.

I also conform qt movies to 29.97 fps so that they match up with the 48k 29.97 frames in the pt session. Works perfectly.

I could also, conform movies to 30fps, use a 30df session (1600.0 samples per frame). But I'd need to do all my work in (47952Hz) pull-down because at the end of the day, I need to watch my video on 29.97 NTSC monitor.

[Jerome B]

trakbytes

your procedure seems interesting, but doesn't conforming movies to another frame rate takes a lot of time ? I never conform my movies anyway. Considering that I have at least an hour a day to sync, I'm not sure it is a solution I can live with. If you digitize at 29.97, then conform to 30, then pull down to 29.97, is the burn-in TC perfectly in sync with the original? (batacam tape)

[F.J.]

I tend to agree with Matt. I auto conform dallies from dat all the time using the pull down on the dat machine itself while loading into PT's and then just set my session to 29.97. Your video work tape is at 29.97 already so if you digitize it at the same rate you shouldn't have to worry about doing pull ups or downs in your PT's session at all. Less complications that way!

[F.J.]

I tend to agree with Matt. I auto conform dallies from dat all the time using the pull down on the dat machine itself while loading into PT's and then just set my session to 29.97. Your video work tape is at 29.97 already so if you digitize it at the same rate you shouldn't have to worry about doing pull ups or downs in your PT's session at all. Less complications that way!

[F.J.]

trackbytes,
By the way the method I described above works even when loading digitally. On the dat machine you set the frame rate to 30nd then feed it Video signal from blackburst and set the clock source(on the Dat machine) to external video and it will do a pull down during the transfer.

[Jerome B]

by the way, how do you conform a movie in Premiere 5.1 ? I looked in every menu and didn't find that feature