Apple Final Cut Pro 6 - Manual (Page 878)

Chapter 5 Using the Audio Mixer 93
I
Recording Audio Level and Pan Keyframes
As long as the Record Audio Keyframes button at the top of the Audio Mixer is
selected, audio level and pan keyframes are recorded whenever a fader or panning
slider is adjusted. Keyframes can be recorded both during playback and when playback
is paused.
During playback, keyframe recording begins when you position the pointer on a fader
or panning slider and press the mouse button, and recording continues until you
release the mouse button. The density of recorded keyframes depends on what you
specified in the Record Audio Keyframes pop-up menu in the Editing tab of the
User Preferences window.
Note: Instead of using the mouse to adjust your faders, you can also use a supported
control surface to adjust multiple faders and panning sliders simultaneously.
Keyframe recording continues as long as the mouse button is held down, so it’s best
to mix groups of short, consecutive clips in a track all at once. For example, suppose
you’ve edited a dialogue sequence with multiple angles of coverage so that the
dialogue spoken by a single character is broken up into six different clips on tracks
A1 and A2.