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M7CL Owner’s Manual
T
alkbac
k / Oscillator
14
161
Chapter 14
Talkback / Oscillator
This chapter explains how to use talkback and oscillator.
Talkback is a function that sends the signal of a mic connected to the TALKBACK jack to the
desired bus. This is used mainly to convey instructions from the mixing engineer to the perform-
ers or staff. If necessary, a mic connected to INPUT jacks, ST IN jacks, and OMNI IN jacks can
also be used for talkback.
The M7CL also contains an oscillator that can output a sine wave or pink noise to the desired
bus, and this can be used to check external equipment or to test the acoustical response of the
room.
The diagram below shows the signal flow of the talkback/oscillator signals.
About the talkback and oscillator functions
+48V MASTER
+48V
+48V
+48V
ON
TALKBACK
INPUT
INPUT
SELECT
[TALKBACK
TALKBACK
OSCILLATOR
INPUT]
[INPUT]
[1-32 {48}]
[ST IN]
[1L-4R]
TALKBACK
GAIN
INPUT
1
2
3
1
2
3
AD
AD
ON
GAIN/TRIM
HA
HA
METER
INPUT TB
INPUT 1-32 {48}
ST IN 1L-4R
METER
+48V
ST IN L
1
2
3
AD
GAIN/TRIM
HA
METER
+48V
1
2
3
AD
GAIN/TRIM
HA
METER
LEVEL
Burst Noise
METER
HPF LPF
ON
OSC
MATRIX CUE
MIX
ST
L R (C)
L R
1 2
1516
1 2
7 8
M
O
N
O
···
···
Pink Noise
Sine Wave
ST IN R
M7CL-32/48
OSCILLATOR
LEVEL
Burst Noise
METER
HPF LPF
ON
OSC
Pink Noise
Sine Wave
MATRIX CUE
MIX
ST
L R (C)
L R
1 2
1516
1 2
7 8
M
O
N
O
···
···
GAIN/TRIM
+48V
+48V
+48V MASTER
ON
[TALKBACK
INPUT]
[EtherSound]
EtherSound
OMNI IN
TALKBACK
INPUT
1
2
3
TALKBACK
GAIN
+48V
HA
ES IN
METER
TALKBACK
INPUT TB
ES IN 1-48
OMNI IN 1-8
ON
INPUT
SELECT
1
2
3
METER
HA
METER
48
AD
OMNI IN
[1-8]
AD
M7CL-48ES
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