
38 | System Configuration ~ Inputs and Outputs |
Gate
The XAP 400 has unique gating parameters which control microphone activation. The Gate button on the selected input in Inputs
Activation
There are three mic activation settings: Auto Gate, Manual On, and Manual Off.
•Auto Gate determines mic gating based on the input level and gating settings for the gating group the input is assigned to. It contributes to and is affected by all gating group settings such as NOM, chairman override, etc.
•Manual On activates a mic, provided it does not exceed max NOM
Figure 3.35. Gate window
requirements of the gating group that the input is assigned to. It is included in the NOM count.
•Manual Off deactivates a mic.
Chairman Override
Chairman Override provides gating priority for this mic input over any other mic input within the same gating control (mixer) groups. When a mic with Chairman Override enabled gates on, all mics which don’t have Chairman Override enabled will gate off. Default is off.
Adaptive Ambient
Adaptive Ambient adjusts the ambient reference level as noise and room conditions change. When adaptive ambient is on, the mic channel monitors the ambient noise level on the input and adjusts the ambient level reference automatically. This means that the gate threshold level automatically increases or decreases based on back- ground noise. If Adaptive Ambient is turned off, the input will use the fixed ambient level specified in the Ambient Level box as its gating reference. Default is on.
PA Adaptive Mode
PA Adaptive Mode uses loudspeaker 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 as they