Apple Final Cut Pro 7 - Manual (Page 684)

2 Move the playhead to the In or Out point of the clip, then press Command-Equal Sign
(=) to zoom in on the audio waveform as far as possible.
A wide playhead bar in
the Viewer represents
one video frame at full
magnification.
3 Press the Shift key and position the playhead within the frame to a new point with better
sync.
4 Click the Mark In or Mark Out button.
Final Cut Pro slips the audio item in the clip by the offset from the subframe position of
the playhead to the boundary of the previous whole frame.
Examples of Ways to Easily Edit Audio
As you work with audio, you may find it helpful to read through these two examples of
ways you can fix audio issues using Final Cut Pro.
684 Chapter 43 Audio Editing Basics