Grass Valley AMX-3981 2014 - Manual (Page 96)

GUIDE TO INSTALLATION AND OPERATION
90 | AMX-3981
Select the Config tab to set up the program configuration
and input/output channels.
Input & Output Channel Selection
• Use the pulldowns on the left side of the graphic to
connect AMX-3981 input channels to the inputs of the
JA-ALC module.
• The JA-ALC module outputs will appear on the AMX-
3981 channels shown to the right of the graphic. Use
the Output Channels pulldown below to select the
block of output channels that will be used.
Module Configuration
Use the Program(s) pulldown to select the configuration of
the inputs to the JA-ALC module.
• The presence or absence of upmix changes the ALC
channel configuration. For this reason, it is possible for
the user to disable the upmix functionality. This
functionality will not be present if the current module
model does not have a –DUP. When upmix is
disabled, the upmix parameters are not configurable.
• Select the Disable Upmix Hardware checkbox to
disable the upmix functionality
The list displayed in the pulldown changes depending on whether upmix is available.
• If upmix is not available (either the –DUP option is not enabled, or else the Disable Upmix Hardware checkbox
beside the pulldown is selected), a very extensive list of program configurations appears, ranging from a single
mono input up to a 5.1 input plus two mono inputs, and everything in between (depending, of course, on the
number of channels available in the module – 2, 6 or 8). See the chart below for a complete listing.
• If upmix is available (-DUP option is enabled, and the Disable Upmix Hardware checkbox is not selected), then
a much more limited selection is available, as shown in the chart below. Of course, upmix works on 2-channel
inputs only, but in some modes the JA-ALC module will switch between passing the input through if it is 5.1, and
upmixing it if it is 2-channel, so 5.1 inputs appear in the pulldown list.
Changing the Program Configuration may affect the selected preset for the other programs. This is especially true if
the number of programs increases or decreases. The following pop-up may appear:
Note that it may take up to 10 seconds for the new configuration to be established and for the panel to update.
Figure 6.21 JA-ALC module - Configuration