Apple Final Cut Pro 6 - Manual (Page 378)

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Merging Clips from Dual System
Video and Audio
In Final Cut Pro, you can create merged clips that refer to
independent video and audio media files simultaneously,
making it easy to work with them together, in sync.
This chapter covers the following:
 Working with Dual System Video and Audio (p. 45)
 Using Synchronization Points to Create Merged Clips (p. 46)
 Duration of Merged Clips (p. 48)
 Creating Merged Clips from the Timeline (p. 50)
 Changing the Sync of Merged Clips (p. 51)
Working with Dual System Video and Audio
Many movies are made by recording picture and sound separately and then syncing
them together during post-production. While this adds a level of complexity to
post-production and editing, it also gives you more independent control of picture
and sound throughout. Cinematographers can focus on capturing the images, while
the production sound recordist and microphone operator can work independently
to capture the best sound. The visible and audible clicking of the slate, along with
timecode and edge code numbers, are used to sync picture and sound together in
post-production.
Dual system recording is used in productions such as:
 Big-budget video productions that record audio separately from the video, typically
using a DAT recorder.
 Film shoots; since most film cameras record only picture, audio is always recorded
separately, typically using a DAT recorder, Nagra, or hard disk recorder.