Operation, cont’d
Master Audio functions
Master Audio is a separate audio output from the A/V groups. Master Audio can route audio from any of the groups or from a microphone to the Master Audio output.
Master Audio volume and individual audio input attenuation does not affect microphone volume.
Selecting an input for the Master Audio switcher
Select audio input from any of the A/V groups or from the microphone by pressing one of the Master Audio Select buttons (VGA,
Increasing or decreasing the Master Audio volume
To increase or decrease the Master Audio volume, press the AV Volume increment (
) and decrement (
) buttons until the desired sound level is reached.
Increasing or decreasing individual audio input attenuation adjustments
To equalize all audio input sources, audio inputs can be adjusted individually.
1.Press and hold the input button that corresponds to the input device whose volume you want to adjust.
2.Press the volume increment (
) and decrement (
) buttons until the desired sound level is reached.
Master Audio volume and individual audio input attenuation does not affect microphone volume.
Muting and unmuting the audio
To mute the Master Audio output, press the Mute button. The LED over the Mute button lights to indicate that Mute is active. To unmute the audio, press the Mute button again; the LED goes out.
Microphone controls
Microphone Talk Over button
To mix the microphone input with the Master Audio output
Mic Level buttons
To increase or decrease the microphone volume, press the Mic Level increment (
) and decrement (
) buttons until the desired sound level is reached.
Mic Level does not affect Master Audio volume.
Setting microphone talk over threshold
1.Finish installation wiring and setup as described in the previous sections.
2.Turn on the microphone by pressing the Microphone Talk Over button.
3.Speak into the microphone in a normal voice. The main program audio level should drop moderately. If not, lower the threshold by turning the Talk Over Threshold Adjust pot on the back panel of the switcher clockwise in small increments.