PRE-RELEASE
Speed-dependent volume
| Speed-dependent volume |
| General |
Automatic volume control is controlled by the car's speed to compensate for background noise that occurs when the car is being driven. The function is active at speeds over 25 km/h (16 mph).
One of the following sensitivity levels can be selected for the function:
| • |
Off
(no compensation)
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| • |
Low
(low compensation)
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| • |
Med
(medium compensation)
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| • |
High
(high compensation)
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| Function |
The ESP control module transmits a speed signal on the P-bus. This is read by the MIU. The MIU then transmits the information on the I-bus, which the head unit can read to regulate volume. The level is increased when speed increases and is lowered when speed decreases.
