User's Manual

Gating
Click the Gating tab to access microphone gating features. You can control the gating mode, set
the gate ratio, hold time, and attenuation, set the decay rate, and control chairman override for
each microphone from this tab.
Setting the Gate Mode
Set Gate Mode allows you to set the gate mode. Choices are limited to manual on, override on,
and auto.
l Manual on activates a mic; the microphone contributes to gating parameters.
l Manual off deactivates a mic; the microphone no longer contributes to gating parameters.
l Override on activates a mic; the microphone does not contribute to gating parameters.
l Auto automatically gates the mic on or off, based on input levels and other parameters pro-
grammed into the INTERACT AT.
l PA Adaptive: PA Adaptive Mode: Uses the audio level on a specified output as the new
ambient level when audio is present at the power amplifier. This prevents loudspeaker audio
from gating on the mic while still allowing people in the room to gate on microphones when
they speak (provided that their voices are louder than the loudspeaker audio). For example,
you might decide to play background music from a CD player during a presentation. PA
Adaptive Mode allows you to use the output routed from the CD player as the ambient ref-
erence to prevent the CD player’s audio from gating on microphones. The default is Off.
Adjusting Gate Ratio
Gate ratio specifies how much louder the mic audio level must be above the ambient noise level
before the mic gates on.
l Using the slider, adjust the gate ratio to the desired level.
Adjusting Hold Time
Adjust hold time allows you to set how long the channel stays gated on after the mic gates off.
l Using the slider, adjust the hold time to the desired level.
Adjusting Decay Rate
Set decay rate allows you to set how quickly a mic gates off after the hold time expires.
l Click the Decay Rate radio button for the desired amount of decay after the gate is lost.
Enabling Chairman Override
Chairman override provides gating priority for a mic. When a mic with chairman override enabled
gates on, all mics that don't have chairman override enabled will gate off.
l Click the Chairman Override radio button enable the chairman override feature.
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