Program Audio
The selected audio input is routed to the program audio output according to the switcher mode. The input LED selected for program audio output blinks.
Program Audio Selection
Single switcher mode
In single switcher mode, audio from the selected input is routed to the program audio output. If combine mode is active, when a DVI input is selected, DVI audio is available on the HDMI audio output and the program audio output.
Separate switcher mode
In separate switcher mode, the selected audio input from only one of the four input groups is routed to the program audio output. The selected input is indicated by a flashing input LED and is always the last input selected. The selected input LEDs of the other three groups are steadily lit.
If combine mode is active, when a DVI input is selected, DVI audio is available on the HDMI audio output and the program audio output.
VGA/YUV INPUTS | DVI INPUTS |
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| VIDEO INPUTS |
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1 | 2 | 1 | 2 | 1 | 2 | 3 | 1 | 2 |
MODE | SINGLE | SEPARATE | COMBINE DVI/HDMI |
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LED | LED | LED | LED | ||||||||
Lit | Lit | Blinking | Lit | ||||||||
Figure 16. Program Audio selection (HDMI program audio selection shown)
Program Audio Breakaway
Both separate and single switcher modes provide audio breakaway which allows routing of the audio signal from any input to the program audio output independently from the video signal. It is available via software control only. See Program Audio Breakaway on page 23
Program Audio Volume Control
Using the front panel volume control knob, the user can increase or |
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decrease program volume. The adjustment of program volume has |
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MUTE |
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no effect on the Mic volume so program audio can be muted while |
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the Mic input is still active. The program audio volume has a range |
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from |
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controller. The associated LEDs light from bottom to top with |
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increasing volume. |
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Program Audio Mute
The Program Audio mute button toggles the audio on and off. The indicator LED to the right of the button lights red when program audio is muted. Press the mute button again to unmute the output.
Changing the audio input selection does not unmute the program audio output. Changing the program audio control knob unmutes the program audio output.
NOTE: Program audio mute does not mute the microphone input.
MPS 409 • Operation | 15 |
