| 摘要 |
A vehicle mounted audio multimedia system has a variable audio volume adapted to changes in the condition of a road surface. A vehicle occupant manually sets a desired audio volume level. Motion is sensed within a suspension system of the vehicle during travel of the vehicle. A roughness value is determined in response to the motion. The roughness value is transformed into a volume boost, the volume boost generally increasing with an increase in the roughness value. The volume boost is added to the desired audio volume level to provide the audio gain.
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