Apple Soundtrack Pro 3 - Manual (Page 342)

The surround panner HUD appears in a floating window over the Soundtrack Pro window.
The dominant feature of the Surround Panner HUD is the black circle that represents the
virtual surround space. The puck, a dot inside the circle, is the primary surround pan
control. Input channels are represented by color-coded, semi-circular, translucent arcs
emanating from the inside of the circle’s circumference. These arcs indicate the input
channel’s gain (by the height of the arc), the channel’s spread (by the width of the arc),
and location. Overlapping sounds are represented by overlapping arcs, summing
(combining) to white where all channels overlap.
Rotation slider
Puck (pan position)
Width slider
Collapse slider
Center bias slider
LFE balance slider
• Position: The puck is the main control in the panner. To pan the audio, move the puck
by clicking anywhere inside the black circle or by dragging the puck to a different
position in the circle. The speaker icons around the edge of the circle represent the
five main surround channels: L (left), C (center), R (right), Ls (left surround), and Rs (right
surround). The closer you move the puck to one of the speaker icons, the louder the
sound will be from that speaker. For more information about moving the puck to adjust
the position parameter, see
Modifier Keys for Moving the Puck .
Note: In automation envelopes, this Position parameter is expressed as Surround Pan
X and Surround Pan Y.
342 Chapter 13 Mixing Surround Sound