Apple Soundtrack Pro 2 - Manual (Page 300)

300 Chapter 9 Mixing Surround Sound
The Surround Panner HUD
The Surround Panner HUD offers finer panning adjustments, a graphic representation
of the current surround setting for the selected track, and other surround controls.
To display the surround panner HUD, do one of the following:
m Double-click the surround panner in the track header of the track or bus you want to adjust.
m Double-click the surround panner in the Mixer channel strip of the track or bus you
want to adjust.
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.
The surround pan controls include the following:
 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 ” on page 303.
Rotation slider
Puck (pan position)
Width slider
Collapse slider
Center bias slider
LFE balance slider