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Viewing and adjusting the input audio level, Viewing.and.adjusting.the.input.audio.level, Preliminar y – Extron Electronics MVX Plus 128 VGA A User Guide User Manual

Page 58: Operation, cont’d

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Operation, cont’d

MVX Plus 128 VGA A Matrix Switcher • Operation

3-32

PRELIMINAR

Y

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 (figure 3-53). The audio level can be adjusted from the front panel or under

serial port or Ethernet control. The default audio level is 0 dB.

Audio
Inputs

Audio
Inputs

VCR

No noticeable
volume differences
between sources

Audio System

CD Jukebox

MVX Plus 128 VGA A

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

AUDIO

VIDEO

I/O

CONTROL

ENTER

PRESET

VIEW

ESC

INPUTS

1 2 3 4 5 6 7 8 9 10 11 12

OUTPUTS

1 2 3 4 5 6 7 8

MVX SERIES SWITCHER

WIDEBAND MATRIX SWITCHER WITH ADSP™

Figure 3-53 — Audio gain and attenuation

1

.

Press the Esc button to clear any input buttons, output buttons, or control

buttons that may be lit.

2

.

To enter Audio mode, press and hold the Audio button until the button begins

to blink red, then release the button.

3

.

Press and release an input button to select an input. The output buttons

display the audio level for the selected input; each output LED indicates 1 dB

when blinking slowly, 2 dB when blinking quickly, and 3 dB when lit steadily.

Green output buttons indicate a gain (+) audio level and red output buttons

indicate an attenuation (–) level. See the table on the next page to read the

displayed audio level.

4

.

Press and release the Esc (

>

) and View (

<

) buttons to increase and decrease

the audio level.

5

.

Press and release the Audio button to exit the Audio mode. The Audio button

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 RGBHV and audio selected for configuration (RGBHV and
Audio buttons lit).