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DNC - dynamic noise
covering
The DNC (Dynamic Noise Covering)
feature increases the volume whilst the
vehicle is driving. As its starting point it
uses a volume level that is considered
pleasant whilst the vehicle is stationary.
The volume is boosted by a different
amount for each frequency band de-
pending on how noise develops in the
vehicle.
This ensures that the volume and sound
can still be appreciated even if noise in
the vehicle varies. Noises that only last
a short time, such as crossing train
tracks, are not taken into account.
Calibrating DNC
In order for this feature to work properly
for your vehicle, you must calibrate it
using the measuring microphone.
Please carry out the DNC calibration
after the DSA calibration. After calibra-
tion you should permanently attach the
microphone near the console using the
Velcro tape, however, do not place it in
the footwell, near locations where
booming sounds can be heard or near
the ventilation/heating.
The microphone’s opening must point
towards the passenger compartment.
Calibration should be carried out in a
quiet location whilst the engine is
switched off.
Starting DNC calibration
➮
Press the DSA button
5
.
➮
Press the softkey
4
assigned to
the “DNC” display item.
➮
Press the softkey
4
assigned to
the “ADJ” display item.
A countdown starts in the display. Dur-
ing this time you have the opportunity
to position the microphone. Calibration
begins as soon as the countdown is fin-
ished.
➮
Press the joystick OK
7
or the
MENU button
8
to close the
menu.
Switching off DNC
To switch off DNC,
➮
press the DSA button
5
.
➮
Press the softkey
4
assigned to
the “DNC” display item.
➮
Press the softkey
4
assigned to
the “OFF” display item.
“DNC OFF” appears briefly in the dis-
play.
To switch DNC on again,
➮
select a DNC boost level (DNC1 -
DNC5).
➮
Press the DSA button
5
.
The settings are saved.
DNC
