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The Filmmaker’s Guide to Final Cut Pro Workfl ow<br />
DTS Dolby SR and 5.1 are encoded later from discrete channels. The encoding usually takes place<br />
in the optical transfer for fi lm fi nish or in the DVD authoring. The simplest system, used often in<br />
digital video, is simply a stereo composite mix. Stems for a stereo mix are usually 1 or 2 dialogue,<br />
2 (stereo) music, and 2 sound effects.<br />
Exporting Stereo and Finishing<br />
The stereo composite, stereo mix, and fi nishing in Final Cut Pro or on fi lm can happen in the following<br />
workfl ow. When the mix is compiled in the Pro Tools session, the stereo mix is exported as<br />
a 48 K, 16 or 24 bit AIFF or BWF. Go to fi le > Bounce to disc, and direct it to your audio fi rewire.<br />
This will play the mix in real time with all MIDI tracks playing. The mix is recorded as an AIFF<br />
fi le. Import the AIFF into your Final Cut Pro project and line up the 2 pop with the picture.<br />
If you are fi nishing on DVCam, you are done. If you are going to online editing, you are ready to<br />
online. If you are fi nishing on fi lm, you are ready to pull up (if your frame rate was 23.98) and shoot<br />
the optical (see Chapter 5 on fi nishing on fi lm).<br />
Exporting the Mix and Finishing<br />
The next steps are to export the surround composite mix and fi nish in DVD Studio Pro or on fi lm.<br />
For DVD, 5.1 Dolby Pro Logic can be encoded in Apple’s Compressor as a part of the authoring<br />
process. For 5.1 Dolby Pro Logic, the individual tracks are bounced as multimono and imported one<br />
at a time in Compressor. They are then compressed into a Dolby 5.1 AC3 audio fi le that is used in<br />
the DVD authoring.<br />
For fi lm fi nish, the Dolby encoding is done after the mix and before the optical transfer. There is a<br />
Dolby licensing fee. Dolby will send a technician to the mixing facility after the mix to encode the<br />
master tape.<br />
Optical Sound and Pull Up<br />
In a fi lm fi nish, before the “married” answer print (answer print with sound) can be printed, the audio<br />
from the mix needs to be pulled up (only if you were editing at 23.98) and shot to optical sound.<br />
The optical sound can then be printed on the answer print. Don’t confuse this with “pulling up” the<br />
optical track 26 frames before printing. Both processes are referred to as “pull up,” but in this step<br />
we are speeding the sound back up to 24 FPS from 23.98 FPS.<br />
Pulling up is more critical than pulling down. When we pulled the original sound down for syncing<br />
to 23.98 footage, we were slowing down by exactly .1 percent. Moreover, if we were off by some<br />
small fraction of this small percent, it rarely creates a problem as we only need to hold sync for the<br />
duration of the take, perhaps a few minutes on even a long take. The pull up, however, is done to<br />
the entire fi lm. We need to hold exact sync, even a drift of .0001 percent will cause the picture to<br />
drift out of sync. It is not uncommon for pull downs to be done with the equipment locked to several<br />
sync clocks. Pro Tools may be locked to its internal clock, a Nagra may use its crystal and, as these<br />
are both very accurate clocks, we can hold sync through the take. But for truly accurate sync, every<br />
piece of equipment must be locked to the same clock reference. Typically, a video sync generator is<br />
fed through a distribution amplifi er and sent to every piece of equipment in the facility. This is referred<br />
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