Setup Via The Medialink Control/Configuration Software - Extron electronics MLS 100 A User Manual

MLS 100 A • User Guide (Continued)

Setup via the MediaLink Control/Configuration Software

CAUTION:
To avoid damage to your hearing, the output volume should be set as low as possible before you test the sound
system.
ATTENTION :
Pour éviter d'abîmer votre ouïe, le volume de sortie doit être positionné au niveau le plus bas possible avant de
tester le système audio.
Cable and power on all the equipment.
1.
Start the MediaLink Control Software and select the Switcher (MLS)
2.
Config portion of the program (
Select an audio input (
3.
•
Volume for the four switchable inputs is not adjustable via the front
panel. It can be adjusted only via RS-232 (including via an MLC).
•
Wait at least ten (10) seconds between making a change (input
selection or audio adjustment) and disconnecting power from the
MLS. The switcher needs several seconds to store and save the
new settings in its memory.
Use the following table to determine the gain or attenuation. Match the desired level for balanced output or for unbalanced
4.
MLS100Series_audio gain tbl_062304.eps
output, depending on how the output connector is wired.
Gain and Attenuation Settings for MLS 100 Series Switchers
+4 dBu
+4 dBu 0 dB
0 dBu +4 dB
-10 dBV
+12 dB
(-8 dBu)
-20 dBV
+22 dB
(-18 dBu)
Table 2. Gain and Attenuation Settings for MLS 100 Series
NOTES:
•
If you wire an audio output for balanced output, the MLS outputs a unity signal (input level = output level). If you wire
an audio output for unbalanced output, it causes the audio signal to be attenuated by 6 dB (gain = -6 dB).
•
For dBV the reference is 1 volt.
•
For dBu the reference is 0.775 volts.
In the control program, move the Audio Input Level slider to select the gain/attenuation for that input, as shown
5.
on the right.
Repeat steps 3–5 for the other three inputs.
6.
Test the system by listening to audio output for each input. Start by setting the audio output to the lowest level.
7.
If the audio output is too loud or is clipping (becoming distorted as the loudest parts are cut off), decrease
a.
the gain for that input.
If the output is too soft or inaudible, increase the gain.
b.
NOTES:
•
Input gain and attenuation for audio inputs 1 through 4 is adjustable via RS-232 control only (using SIS commands
or the MediaLink Control/Configuration Software.)
•
The Aux/Mix input level can be adjusted via the front panel Aux/Mix Level control only. Aux/Mix level can not be
adjusted via RS-232 (SIS commands, configuration software, or an MLC MediaLink Controller). The Aux/Mix level is
independent of the input and volume controls for the four switchable inputs.
•
Volume for the four switchable inputs is not adjustable via the front panel. It can be adjusted only via RS-232
(including via an MLC).
•
Wait at least ten (10) seconds between making a change (input selection or audio adjustment) and disconnecting
power from the MLS. The switcher needs several seconds to store and save the new settings in its memory.
4
1
).
2 ).
Desired Output Levels
Balanced Unbalanced
-10 dBV -20 dBV
0 dBu +4 dBu 0 dBu
(-8 dBu) (-18 dBu)
-4 dB -12 dB -22 dB +6 dB +2 dB
0 dB -8 dB -18 dB +10 dB +6 dB
+8 dB 0 dB -10 dB +18 dB +14 dB
+18 dB 10 dB 0 dB n.a. +24 dB
-10 dBV -20 dBV
(-8 dBu) (-18 dBu)
-6 dB -16 dB
-2 dB -12 dB
+6 dB -4 dB
+16 dB +6 dB