ADN System Instruction Manual

Table Of Contents
Running a conference
120 | ADN Digital Conference System
Setting the volume of the conference units’ built-in
loudspeakers
Increasing or reducing the volume of the conference units’ built-in loudspeakers
You can set the volume of the conference units’ built-in loudspeakers via the jog
dial on the central unit. The standard display displays the current volume
setting .
Adjustment increments for the floor channel volume that can be adjusted via the
central unit:
Muting the conference units’ loudspeakers for contributions coming from the
conf
erence units’ microphones
The “Mic Loudspeaker Mute” function allows you to mute the conf
erence units’
loudspeakers so that contributions coming from the conference units’ microphones
are not reproduced (see page 100 or page 201).
Direct Access 30 D1/C1
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CAUTION
Danger of hearing damage due to loud hissing!
When the floor channel volume is set to a high level or when several
participants speak simultaneously, feedback (loud hissing noise) can
occur. This can cause hearing damage.
Reduce the floor channel volume (see page 120, page 199 or
page
214).
Activate the “Feedback Suppression” function to be able to
increase the volume before feedback can occur (see page 99 or
page 202).
Make sure that the “Audio Gain Reduction” function is activated
(see page 98). This function reduces the gain per active micro-
phone by the selected level and thus prevents feedback noise.
Increase the distance between the individual conference units to
at least 50 cm.
Turn the jog dial
to the right to increase the volume or
to the left to reduce the volume.
Value shown on the
standard display
Adjustment increments for
the floor channel volume
0 0
1 to 8 2.5 dB
9 to 16 2.0 dB
17 to 24 1.5 dB
25 to 32 1.0 dB
The volume of the conference units’ loudspeakers can also be set via the
central unit’s operating menu (see page 98) or the “Conference Manager”
software (see page 199).
Use the “Feedback Suppression” function to be able to increase the floor
chann
el volume by
up to 5 dB without feedback occurring (see page 99 or
page 202).
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