Editing 24p video with final cut pro, What is downconverted video – Apple Cinema Tools 3 User Manual
Page 179
Chapter 11
Working With 24P Video and 24 fps EDLs
179
Editing 24P Video With Final Cut Pro
The excellent quality of 24P video presents a challenge when it comes to editing—the
bandwidth and storage space it requires. Editing minimally compressed 24P video
directly in Final Cut Pro requires that you have a system with a large, fast hard disk and
specialized capture hardware. Even with a properly configured system, you may only
be able to capture the video you actually intend to use, not the typical 20 to 100 hours
you may have shot.
The typical approach to editing 24P video with Final Cut Pro involves two steps: an
offline edit, using compressed 24P clips or downconverted (to standard definition
NTSC) and compressed clips, followed by an online edit with recaptured,
uncompressed clips.
Using One Final Cut Pro System for Both 24P Offline
and Online Editing
Ideally you could use the same Final Cut Pro system for both offline and online editing.
This makes the process as simple and error-free as possible. The workflow when using
the same system for both purposes looks like this:
1
Capture your 24P video as compressed clips.
2
Perform an offline edit of the clips.
3
Use the Media Manager to create a duplicate of the project that uses only the clips and
sections of clips you need.
4
Delete the original clips.
5
Recapture the material in your duplicate project as uncompressed 24P video.
Even if your Final Cut Pro system is not configured to edit uncompressed 24P video, it
can serve as an offline editor and export a 24 fps EDL to be used by a 24P online
editing system. Even better, if your 24P online editing system uses Final Cut Pro, you
can simply copy the project from the offline system, allowing you to preserve far more
information about the edit than with an EDL alone.
What Is Downconverted Video?
It is often necessary to use high definition video, such as 24P, in systems designed for
standard definition NTSC. The process of converting high definition video to standard
definition video is called downconverting. Most high definition VTRs have an option
that provides standard definition video outputs. Several specialized hardware
downconverters are also available. See “
information on dealing with the aspect ratio differences between the standards when
downconverting.
UP01101.Book Page 179 Thursday, March 10, 2005 3:16 PM