Software Instruction Manual

IQ–MSD Turbo 1.4 Advanced IQ System Software
Page 153
6.4.6 Gate Count Function
(Figure 6.13) The Gate Count function, working in conjunction with the Gate function, keeps track of how many
gates are open at a time, and provides feedback control when a large number of mics are open. A similar feature
of other manufacturers’ products is called “NOM” (Number of Open Mics). When only two or three mics are open,
system gain is usually too low to cause feedback. But as more mics open, the system gain can increase enough
to cause feedback.
Gate Count: Immediately to the right of the Gate Count label is the master on/off control. Turn on this control to
activate the Gate Count function.
IMPORTANT: The Gate Count function is dependent on the Gate function. Both the Gate function and the Gate
Count function must be on for the latter to function.
Each input also has an individual on/off control for each output channel. They are located across the bottom of the
screen and are used to control which inputs participate in the Gate Count function. Inputs with this control turned
off are not counted.
Count Level: The Count Level control determines how much each input is attenuated as more gates open.
It is entered in dB. When only one mic in a count group is active, there is no added attenuation. Each additional
open mic increases the attenuation by the “Count Level”. For example, if the Count Level were 3 dB and six mics
were open, the attenuation would be 15 dB, or (NOM – 1) × Count Level.
Max Allowable Open Mics: Sets the maximum number of inputs that will be allowed to open at the same
time. The Gate Count function will not allow additional inputs to open
regardless of their priority when the maximum
number has been reached.
Gate Counting can be shared between more than one SMX-6 if they are connected to a Crown Local Net. See
Section 6.4.7 for more information.
The following list shows the possible settings for each Gate Count function control.
Gate Count: On/Off
Count Level: ½ to 3 dB in ½ dB steps; 3 to 12 dB in 1 dB steps; 16 dB
Max Allowable Open Mics: 1, 2, 3, 4, 5, 6