Apple Logic Pro 8 - Manual (Page 820)

820 Chapter 35 Working With Surround
Using the Mono to Surround Panner
If the source input is set to mono, the Mono to Surround Panner appears.
The most obvious element of the Surround Panner window is the surround field. You
can use it to control the surround routing of the input signal to the speaker outputs.
The level sliders and fields (shown below the surround field) provide independent
control of the Center and LFE channel levels. The extended parameters allow you to
precisely control the separation between channels.
Surround Field
The surround field consists of the following:
 Two real time display fields, for angle and diversity. You can directly interact with
these fields by using the mouse as a slider.
 A circular grid, comprised of four concentric circles, divided into eight segments—
each of 45 degrees. The outer circle represents the minimum amount of diversity,
with the center circle representing the maximum amount of diversity.
 A further circle encloses the grid. This is actually the Diversity/Angle display (or
meter, if you prefer). As the diversity (or angle) changes, a portion of the diversity
display will be highlighted.
 A square is overlaid on the grid. This is an indicator of the separation between left
and right channels, and also front and rear (surround) channels. You can directly
interact with the corners or edges of this separation square by dragging them.
Alternately, you can use the sliders or display fields in the lower section of the
Surround Panner window.
Surround field
Level controls
Extended parameters