Apple Soundtrack Pro 3 - Manual (Page 345)

• Speaker Disable: Click a speaker icon once to turn it on or off. If you turn off a speaker,
its output goes to adjacent speakers. Each speaker supports a single-click on/off for
that speaker’s output.
Click a speaker to turn
it on or off. A dim gray
color indicates the
speaker is off.
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
Working with Automation .
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
Surround Metering
Soundtrack Pro provides a variety of level meters to monitor output levels as you make
surround panning adjustments.
345 Chapter 13 Mixing Surround Sound