Apple Soundtrack Pro 2 - Manual (Page 356)

356 Chapter 12 Working with Automation
Track, Bus, and Submix Envelopes
Each track and bus has envelopes for volume and pan, and each submix has a volume
envelope. By default, the envelopes are hidden. When you show the envelopes, they
appear in rows below the track, bus, or submix in the Timeline.
When you add effects to a track, bus, or submix, you can automate the effect
parameters by adding an envelope for any parameter to the envelopes for the track,
bus, or submix. The envelopes are different for each type of effect. For information on
adjusting effect parameters, see Chapter 11, “
Working with Audio Effects ,” on page 327.
To show the envelopes for a track, bus, or submix:
m Click the envelope disclosure triangle in the track header. Click the disclosure triangle
again to hide the envelopes.
Default Stereo Envelopes
The default envelopes for tracks using stereo panners are Volume and Pan. The ranges
of volume and pan envelopes are equivalent to the ranges of the corresponding track
controls:
 Volume envelopes: The range is from –96 dB to +6 dB.
 Track pan envelope: The range is from 100% Left to 100% Right pan, with Centered at
the midpoint, 0 (zero).
Default Surround Envelopes
The default envelopes for tracks using surround panners are as follows:
 Volume
 Surround Pan X
 Surround Pan Y
 Rotation
 Width
 Collapse
 Center Bias
 LFE
 Left Speaker Disable
 Center Speaker Disable
Click the envelope
disclosure triangle.
The envelopes are
displayed below the
track, bus, or submix.