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Names and Functions of Controls on Screen
1 GATE OPEN indicator
Lights in green when the input gate is opened.
2 Compressor gate characteristics graph
Displays the characteristics of the compressor and gate for the
microphone input.
You can control threshold and ratio of the compressor as well
as the threshold of the gate by dragging the marker on the
graph with the mouse.
The reference level is 0 dB.
3 Input channel select button
You can select the input channels for which the AUTOMATIC
MIXER function is to be enabled.
The button of the selected channels lights in green.
4 NOM button
Turns on and off the NOM (Number of Open Microphones
attenuated) function. It lights in green when pressed ON.
The NOM function suppresses howling by automatically
reducing the microphone input level by 3 dB whenever the
number of opened gates is double.
5 ONLY ONE button
Turns on and off the ONLY ONE function. It lights in green
when pressed ON.
The ONLY ONE function restricts the number of microphones
that can be used at a time to only one channel. It is enabled by
opening the gate of only the channel that first feeds the input
signal.
Note
If you set the hold time and the release time of the input gate
to a longer time, the sound signals from other microphone
inputs are muted until the gate of the microphone input that is
opened by the ONLY ONE function, is closed.
Adjust the hold time and release time of the input gate to
appropriate values.
AUTOMATIC MIXER SETUP Screen
This screen is used to make detailed settings of the AUTOMATIC MIXER.
6 LAST ON button
Turns on and off the LAST ON function. It lights in green
when pressed ON.
The LAST ON function keeps open the gate of the
microphone input channel that feeds the sound last of all.
7 Compressor setup
Sets the parameters of the input compressor.
Because the input compressor operates by detecting the sound
signal after passing through the feedback reducer, operation of
the input compression is not affected by the setting of the
INPUT fader.
• THRESHOLD : Sets the threshold. The adjustment range is
–60 to +20 dB in 1-dB steps.
• RATIO : Sets the ratio. The adjustment range is 1:1
to ∞
:1 in 14 steps.
• ATTACK : Sets the attack time. The adjustment range
is 0.1 to 1000 ms in 24 steps.
• RELEASE : Sets the release time. The adjustment range
is 10 to 10000 ms in 18 steps.
8 Gate setup
Sets the parameters of the input gate.
Because the input gate operates by detecting the sound signal
after passing through the input compressor, operation of the
input gate is not affected by the setting of the INPUT fader.
• THRESHOLD : Sets the threshold. The adjustment range is
–60 to 0 dB in 1-dB steps.
• HOLD : Sets the hold time. The adjustment range is
10 to 10000 ms in 18 steps.
• RELEASE : Sets the release time. The adjustment range
is 10 to 10000 ms in 18 steps.
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