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KRAMER: SIMPLE CREATIVE TECHNOLOGY
Understanding the Presentation Switcher / Scaler
22
AV Group
, which lets you select the audio-follow-video input from each group
for switching. Pressing the Video Group button and the Audio Group button
illuminate both simultaneously and displays the AV Group OSD status. You
can adjust
1
the Audio Level (VGA Grp In, Mic In, and VGA Grp Out)
Master Audio
, which lets you route the selected audio input (one of 18) to
the MASTER OUT terminal block connector. Pressing the Master Audio
Group button illuminates it and displays the Master Audio OSD status. You
can adjust
1
the Audio Level (Master In, Mic In, and Master Out)
Master AV
, which lets you scale the selected video input (one of 18) at
each of the SCALED OUTPUTS and also route the selected audio input
(one of 18) to the MASTER OUT terminal block connector. Pressing the
Scaler button and the Master Audio button illuminate both simultaneously
and displays the Master AV OSD status. You can adjust
1
the Audio Level
(Master In, Mic In, and Master Out)
7.3 Understanding the Audio Features
This section describes:
Switching balanced stereo audio signals in audio-follow-video or
breakaway modes (see section 7.3.1)
Adjusting the audio level (see section 7.3.2)
Using the Microphone CONTROL Modes (see section 7.3.3)
7.3.1
Choosing Audio-Follow-Video or Audio Breakaway
You can switch balanced stereo audio signals in one of two ways, either:
Audio-follow-video
(AFV), in which all operations relate to both the
video and the audio channels. To set the Audio-follow-video (AFV)
option, make sure that the front panel buttons: Video Group and Audio
Group both illuminate simultaneously; or
Breakaway
, in which video and audio channels switch independently. To
set the Breakaway option, make sure that either the Audio Group button
illuminates (for audio control only, that is, switching operations relate to
Audio) or the Video Group button illuminates (for video control only, that
is, switching operations relate to Video)
1 By pressing the Audio Level key on the infra-red remote control transmitter (see Figure 55). This also cycles between the
front panel AUDIO LEVEL buttons: Out, Line, and Mic. The selected AUDIO LEVEL may also be adjusted by pressing the
+ and – buttons on the front panel