86 Chapter 9: Basic Operation
PRO1 Live Audio System
Operator Manual
Surround panning
In addition to stereo and left-centre-
right (LCR) panning, PRO1 has three
surround panning modes: quad; left,
centre, right and surround (LCRS); and
5.1 surround. To help you visualise the
surround panning envelope, the
masters processing area of the GUI
channel strip has a spatial diagram
(shown right) that updates when you
operate the panning controls.
The 5.1 panning mode uses six matrix
channels, while quad mode uses four
(left and right on both the front and
surround). Although the LCRS mode
uses five channels (front left and right, centre and surround left and right), both
surround channels are the same. (In an LCRS surround panning arrangement, you can
have a single surround speaker positioned directly behind the listener.)
The sound image is controlled via the masters processing area. The following below
shows the recommended
1
5.1 surround system configuration.
1. Reference - ITU-R BS.775.1, 1994. Multichannel stereophonic sound system with and without
accompanying picture. International Telecommunications Union.
LC R
Position
cursor
Speaker
Sound
image
RR
Listener’s position
RL