Apple Cinema Tools 3 - Manual (Page 37)

Chapter 2 The Cinema Tools Workflow 37
Step 2: Capture the source clips
You must capture the video and audio on your editing computer. How you do this
depends in large part on the actual media used for the telecine transfer.
If you used an analog VTR, such as a Sony Betacam, the video and audio must be
converted to digital format and compressed before they can be used. If you used a
digital VTR, such as a Sony Digital Betacam, the video and audio are already digital, but
must still be captured and compressed. In both cases, specialized hardware with the
appropriate connections is usually required.
If you used a DV system, the video (and audio, depending on the transfer type) is
already digital and compressed, and simply needs to be captured using FireWire.
Important: When using serial device control, be sure to calibrate its capture offset. See
the Final Cut Pro documentation for more information. Also see “ Setting Up Your
Hardware to Capture Accurate Timecode ” on page 97 for more information on
capturing your clips.
In either case, you may decide to recompress the files to make them smaller and easier
to work with. For example, taking advantage of the correct codec may allow you to edit
on an older portable computer.
Are the Window Burn Numbers Correct?
There are a variety of reasons why the window burn values might not be correct,
ranging from incorrectly entered values to faulty automatic detecting. You must verify
the accuracy of the window burn values. It is critical that these values be correct if
you are going to rely on them. The key number is usually verified by comparing the
displayed value with a documented value on a hole-punched or marked frame near
the head of the clip. Be sure you verify this at least once for each camera roll
(preferably for each take). Compare the timecode in the window burn with the value
the videotape deck displays.
UP01101.Book Page 37 Thursday, March 10, 2005 3:16 PM