GUIDE TO INSTALLATION AND OPERATION
AMX-1901 |
27
The graphic at the bottom of the panel illustrates the selected programs, and provides pull-downs to choose the audio
input that feeds each program input.
Note 1: An input channel cannot be assigned to more than one (1) program, and can only be used once within a
program.
Note 2: The programs defined here are the programs available for
and
Global Config:
Use the Meter Mode pull-down to select the meter that will be used for all audio level measurements on this AMX-
1901.
Mode
Loudness
Unit
Target
Short-Term
Time Window
Relative
Gating
EBU R128 2011
LUFS
-23
3 sec
-10 dB
A85 ITU BS.1770-2
LKFS
-24
10 sec
-10 dB
ARIB TR-B32
LKFS
-24
3 sec
-10 dB
Each of these has predetermined values for Target, Short Term Time Window and Relative Gating, as shown in the
table, and which are displayed in gray in their (inactive) pull-downs in the panel.
If you select
Custom
in the Meter Mode pull-down, these parameters can all be selected in order to define a custom
meter mode.
5.8 ALC panel
Minimizing loudness differences between segments in a
playout channel is an important issue in a world where multiple
programs originating in different formats from different sources
must be integrated seamlessly. The
is the solution to this need. It uses Grass
Valley’s proprietary
wideband
ALC algorithm.
•
Identified as AMX-1901-OPT-ALC, this option is valid for 8 input channels and up to 8 independent programs.
