Grass Valley AMX-3981 2014 - Manual (Page 71)

GUIDE TO INSTALLATION AND OPERATION
AMX-3981 | 65
5.16.2 ALC option
This option enables the Automatic Loudness Control feature
of the AMX-3981.
Note that this option is available for 2, 6, 8 or 16 channels.
A separate license key is required for each of these, and the
data window below the Enter key data box will indicate which
is currently enabled, e.g.:
ALC AMX-3981-OPT-ALC-16 for the 16 channel option
If the currently-enabled option is 2, 6, or 8 channels, the
Enter key data box will be available to upgrade to a greater
number of channels.
5.16.3 Loudness Measurement option
This option enables the Loudness Measurement feature of
the AMX-3981.
Figure 5.62 ALC option
Figure 5.63 Loudness Measurement option