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Viewing and Adjusting the Input Audio Level
The audio level of each input can be displayed and adjusted through a range of -18 dB to +24 dB
to ensure that there is no noticeable volume difference among sources (see figure 16). The
audio level can be adjusted from the front panel or under RS-232 or Ethernet control.
dBu
VU
+24
21
+21
18
+19
15
+16
12
+13
9
+10
6
+7
3
+4
0
+1
-3
-2
-6
-5
-9
-8
-12
-12
-15
-15
-18
-18
-21
Low Audio
Output Level
dBu
VU
+24
21
+21
18
+19
15
+16
12
+13
9
+10
6
+7
3
+4
0
+1
-3
-2
-6
-5
-9
-8
-12
-12
-15
-15
-18
-18
-21
High Audio
Output Level
Figure 16.
VCR
Audio
Inputs
COMPUTER INPUTS
VIDEO INPUTS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CONTROL
CONFIG
1
2
3
4
5
6
7
8
9
10
11
12
ENTER
PRESET
COMPUTER/AUDIO OUTPUTS
VIDEO OUTPUTS
MPX 866 A
Media Presentation Switcher
Audio
Inputs
CD Jukebox
Audio gain and attenuation
MPX 866 A Media Presentation Matrix Switcher • Operation
dBu
VU
+24
21
+21
18
+19
15
+16
12
+13
9
+10
6
+7
3
+4
0
+1
-3
-2
-6
-5
-9
-8
-12
-12
-15
-15
-18
-18
-21
Output
Level
I/O
VIEW
ESC
VIDEO
AUDIO
MPX 866 A
PRESENTATION MATRIX SWITCHER
No noticeable
volume differences
between sources
Audio System
41
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