Grass Valley Maestro Master Control v.2.4.0 - Manual (Page 228)

MAESTRO User Manual 224
Audio Controls
intended to be used when a mono left-only audio source must be up-
mixed to the surround outputs.
Center Only : The center channel is mapped to the left and right front
output channels. All other channels are muted. This mode is intended
to be used when a mono center-only audio source must be up-mixed to
the surround outputs.
Right Only : The right front channel is mapped to the left and right front
output channels. All other channels are muted. This mode is intended
to be used when a mono right-only audio source must be up-mixed to
the surround outputs.
Stereo Mixdown : The surround audio is mixed-down into a Left only/
Right only stereo mix and sent to the left-front and right-front output
channels only. All other channels are muted.
Mono Mixdown : The surround audio is mixed-down into a mono signal
and sent to the left and right front output channels. All other channels
are muted.
Three-Channel Mono Mode
Some users prefer to have the fuller sound created when all three front
speakers reproduce a monophonic signal. This mode maps the 5.1 channels
normally, but favors all three front channels of the group when mono type
signals are mapped to a surround group. In addition, it creates a center
channel from a stereo pair. The difference between this mode and the
others is that when mono signals are presented, the drill-down selections
on the control surface will map them to all three front channels.
The remapping buttons for this mode are as follows:
Normal : All six input channels mapped to the six output channels 1:1.
Stereo Only : The first audio pair of the surround group is mapped to the
left-front, center, and right-front outputs; all other input channels are
muted. A mono sum of the stereo signal is created and sent to the center
channel output so that there is always something coming from the
center channel. This mode is intended to be used when stereo sources
must be up-mixed to the surround outputs.
Left Only : The left front channel is mapped to the left front, center, and
right front output channels with the center channel favored. All other
channels are muted. This mode is intended to be used when a mono
left-only audio source must be up-mixed to the surround outputs.
Center Only : The center channel is mapped to the left front, center and
right front output channels with the center channel favored. All other
channels are muted. This mode is intended to be used when a mono
center-only audio source must be up-mixed to the surround outputs.