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Appendix A: 24fps Workﬂows 35

appendix a

24fps Workﬂows

Audio Layback to Video

Although you cannot output 24P video to a

video recorder with Pro Tools, you can “Punch

Down” by adding audio that has been posted to

a 24P video clip in Pro Tools to videotape that

was created on another video system.

Playing in Sync with 24 fps Video Tapes

To play back synchronized to a video transport

playing at 24 fps:

1 In Pro Tools, open the Session Setup window

(Setup > Session).

2 Set the Frame Rate to 24 fps.

3 Slave Pro Tools to the video transport.

– or –

If the MachineControl option is installed, select

the appropriate profile to control the video

transport.

Playing in Sync with 29.97 fps (NTSC)

Video Tapes

To play in sync with a 29.97 fps video created from

a 24 fps source:

1 Slave Pro Tools to the VTR.

2 Choose Setup > Session.

3 From the Frame Rate pop-up menu, select

29.97 FPS.

Pro Tools with the Avid DNA video periph-

eral does not support 24 or 23.976 fps video

output. Though 24 and 23.976 fps video

clips are supported, the actual output of

Pro Tools is limited to NTSC (29.97 fps)

and PAL (25 fps) standards. On playback,

the 24 fps clips are converted in software to

these standards. The conversion can pro-

duce visible artifacts. Therefore, Pro Tools

video playback is intended for monitoring

purposes only, and is not suitable for profes-

sional layback or broadcast, regardless of

the resolution or frame rate of the video clip.

Output from Media Station|PT is profes-

sional quality.

For more information on slaving Pro Tools

to the VTR, see the Synchronization chap-

ters of the

Pro Tools Reference Guide.

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