Bedienungsanleitung Allen-Heath ML-5000 (Seite 52 von 60) (Englisch)

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52 ML5000 User Guide

S TALKBACK

Using Talkback

Talkback lets the operator talk to one or more

console outputs, for example to communicate with

performers on stage through their monitor speakers,

cue a recording via the matrix, or make a public

announcement through the main mix.

Plug in the talkback microphone. Select +48V if it

needs phantom power. Start with the TRIM control

turned down. Enable talkback to the required

output by selecting its TB switch. The TALK switch

green LED turns on. Check that the output faders

and levels are set to their normal operating position.

Now press the large TALK TO TB switch and talk

into the microphone. Adjust the TRIM control for

the required volume. The console monitor level is

automatically dimmed to avoid acoustic feedback

and aid intelligibility. To avoid accidentally routing

talkback where it is not wanted you should release

the TB enable switches when finished.

If you do not need to use talkback you can release

all the TB enable switches and use TALK TO TB as

a monitor dim function, for example when using the

intercom, when talking with someone at the

console, or to dim the pink noise signal when

testing speakers.

S1 MIC INPUT. Top panel 3-pin XLR female

socket for plugging in gooseneck microphone for

the console talkback system. The input is

balanced.

Note that this socket is duplicated on the rear panel

for plugging in an alternative cable microphone, so

avoiding the cable dragging over the controls.

S2 +48V. Press this underpanel switch to assign

+48V to the XLR for microphones that require

phantom power. This affects both the top panel and

rear panel talkback mic inputs.

To avoid loud clicks do not press the TALK TO TB

switch while you are switching phantom power on or

off, or plugging or unplugging the microphone.

S3 TALKBACK TRIM. Adjusts the sensitivity of

the input to match the connected talkback

microphone. The range is +5dB to +50dB gain.

S4 TB TO LR. Press this to enable talkback to

the main LR output. When selected, pressing the

TALK TO TB switch S6 routes the talkback mic

signal, or pressing the OSC/NOISE TO TB switch

Q3 routes the osc/noise generator signal to the

output. When not selected, pressing these switches

does not affect the output. The talkback and

osc/noise signals are routed into the mix pre master

level.

S5 TB TO C. This is similar to the switch

described above but enables talkback to the main C

output.

S6 TALK TO TB. Press this momentary switch

to talk to all output destinations which have their TB

switches selected. The green switch LED lights

when one or more TB switches are selected to warn

that the signal will be routed to an output when

TALK is pressed. If no TB switches are selected

the LED remains off.

The microphone is turned on when the switch is

pressed and turned off as soon as it is released.

Pressing TALK automatically dims the console

headphones, local monitor and engineers wedge

monitor by 20dB.

TB TO LR

TB TO C

maxmin

TALK

TO TB

+48V

MIC

TRIM

also on rear

TALKBACK

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Allen-Heath ML-5000 Seite 52

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