Apple Soundtrack Pro 2 - Manual (Page 303)

Chapter 9 Mixing Surround Sound 303
 Speaker Disable: Click a speaker icon once to disable or enable it. If you disable a
speaker, its output goes to adjacent speakers. Each speaker supports a single-click
on/off for that speaker’s output.
Surround Panner Automation
Automating surround pan settings is very similar to automating stereo pan settings: a
track or bus set to use the surround panner has at least seven different panning
envelopes, and a stereo track or bus has only one pan envelope. Automation for the
Position parameter (the puck) is reflected in two envelopes: Surround Pan X and
Surround Pan Y. These are Cartesian X & Y values referring to the puck position within
the black panning circle. All other surround panning parameters are expressed with
one envelope each, except for Collapse and Speaker Disable, which cannot be
automated. For more information about automation, see Chapter 12, “
Working with
Automation ,” on page 355.
Modifier Keys for Moving the Puck
Hold down any of the following keys as you move the puck to constrain its movement.
These modifier keys offer finer control as you make adjustments to the position parameter.
 Shift: Fine adjustment
 Option-click: Reset control
 Option-drag: Straight movement, restricted to diversity, constant angle
 Command: Circular movement, restricted to angle, constant diversity
 Command-Option-drag: Restricted to either X or Y movement
Click a speaker to disable
or enable it. A dim gray
color indicates the
speaker is off.