Sennheiser ADN D1 Instructions for Use - Page 141

Audio Gain Reduction, Feedback Suppression

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Using the "Conference Manager" software Setting the volume of the conference units' built-in loudspeakers 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 130 or page 140). ̈ Activate the "Feedback Suppression" function to be able to increase the volume before feedback can occur (see page 57 or page 132). ̈ Make sure that the "Audio Gain Reduction" function is activated (see page 131). This function reduces the gain per active microphone by the selected level and thus prevents feedback. ̈ Increase the distance between the individual conference units to at least 50 cm. ̈ Move the slider - upwards to increase the floor channel volume or - downwards to reduce the floor channel volume. The value next to the slider changes ("0"-"32") and the floor channel volume is adjusted. Adjustment increments for the floor channel volume that can be adjusted via the central unit: Value shown on the standard display 0 1 to 8 9 to 16 17 to 24 25 to 32 Adjustment increments for the floor channel volume 0 2.5 dB 2.0 dB 1.5 dB 1.0 dB Activating/deactivating the To activate or deactivate the IN audio input or the OUT audio output: audio input/output ̈ Tick/untick the check boxes in the "Audio XLR" box: Audio input/output IN audio input OUT audio output activated deactivated Activating/deactivating the speaking time limit If, in "Live" operating mode, you change settings that affect the conference mode (see next chapters), the conference will be interrupted. A confirmation prompt appears: 140 | ADN Digital Conference System

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Using the “Conference Manager” software
140 |
ADN Digital Conference System
Setting the volume of the conference
units’ built-in loudspeakers
±
Move the
slider
–
upwards to increase the floor channel volume or
–
downwards to reduce the floor channel volume.
The value next to the slider changes (“
0
“-“
32
”) and the floor channel volume
is adjusted.
Adjustment increments for the floor channel volume that can be adjusted via the
central unit:
Activating/deactivating the
audio input/output
To activate or deactivate the IN audio input or the OUT audio output:
±
Tick/untick the check boxes in the “
Audio XLR
” box:
Activating/deactivating the
speaking time limit
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 130 or page 140).
±
Activate the “
Feedback Suppression
” function to be able to
increase the volume before feedback can occur (see page 57 or
page 132).
±
Make sure that the “
Audio Gain Reduction
” function is activated
(see page 131).
This function reduces the gain per active microphone by the
selected level and thus prevents feedback.
±
Increase the distance between the individual conference units to
at least 50 cm.
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
Audio input/output
activated
deactivated
IN
audio input
OUT
audio output
If, in “Live” operating mode, you change settings that affect the conference
mode (see next chapters), the conference will be interrupted. A confirma-
tion prompt appears: