Viewing and adjusting the tp input audio level, Viewing and adjusting the tp input audio level -26, See chapter 3, “operation – Extron Electronics MTPX Series User Guide User Manual
Page 52: Input audio, Level, Ease input level, Audio, Preliminar y, Operation, cont’d
Operation, cont’d
MTPX Twisted Pair Matrix Switchers • Operation
3-26
PRELIMINAR
Y
Viewing and adjusting the TP input audio level
The audio level of each TP 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 (figure 3-42). The audio level can be adjusted from the front panel or via
serial port control. The default audio level is 0 dB.
Audio
Inputs
Audio
Inputs
VCR
No noticeable
volume differences
between sources
Audio System
CD Jukebox
MTPX 3232
Twisted Pair Matrix Switcher
0
-3
-6
-9
-12
-15
Low Audio
Output Level
+4
+1
-2
-5
-8
-12
-18
-21
-15
-18
3
+7
6
+10
9
+13
12
+16
15
+19
18
+21
21
+24
VU
dBu
0
-3
-6
-9
-12
-15
High Audio
Output Level
+4
+1
-2
-5
-8
-12
-18
-21
-15
-18
3
+7
6
+10
9
+13
12
+16
15
+19
18
+21
21
+24
VU
dBu
0
-3
-6
-9
-12
-15
Output
Level
+4
+1
-2
-5
-8
-12
-18
-21
-15
-18
3
+7
6
+10
9
+13
12
+16
15
+19
18
+21
21
+24
VU
dBu
INPUTS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
OUTPUTS
AUDIO
RGBHV
ENTER PRESET VIEW
ECS
MTPX SERIES
MTP MATRIX SWITCHER
CONFIG
Figure 3-42 — Audio gain and attenuation
1
.
Press the Esc button to clear any input LEDs, output LEDs, or control LEDs
that are lit.
2
.
To enter the Audio mode, press and hold the Audio button until the LED
begins to blink, then release the button.
3
.
Press and release an input button for a TP input to select that input. The
output LEDs display the audio level for the selected input and the Esc (
>
) and
View (
<
) LEDs display the polarity (gain [+] or attenuation [–]). See the tables
on the next two pages to read the displayed audio level.
4
.
Press and release the Esc (
>
) and View (
<
) buttons to increase and decrease
the audio level by 1 dB per each push of the button.
Or
, press and hold the button to change the level at a rate of 3 dB per second
until the button is released or the upper or lower limit is reached.
5
.
Press and release the Audio button to exit the Audio mode. The Audio LED
stops blinking.
N
• Pressing the Enter or Preset button also exits Audio mode. Pressing the
Preset button changes to Recall Preset mode.
• There is one audio level setting per input. The audio level setting is shared
by the left and right audio inputs.
• The audio level settings are stored in non-volatile memory. When power is
removed and restored, the audio level settings are retained.
• Exiting Audio mode by pressing the Audio button always returns the I/O
configuration to video and audio selected for configuration (Video and
Audio LEDs lit).