Sound effect producing apparatus for vehicle

Details Sound effect producing apparatus for vehicle Sound effect producing apparatus for vehicle

2007-03-07

2011-11-15

Faulk, Devona (Department: 2614)

Electrical audio signal processing systems and devices

Vehicle

C381S057000, C381S061000

Reexamination Certificate

active

08059829

ABSTRACT:
A processor determines an engagement state of a clutch based on a clutch signal, which is output from a clutch switch connected to a clutch pedal. In a declutching state, the processor lowers weighting gain characteristics that serve as acoustic correcting characteristics used in a sound pressure adjuster. Therefore, even when a change of an engine rotational frequency per unit of time increases during a shift-change operation, the gain of the control signal is prevented from increasing. Accordingly, a gap between real acceleration of the vehicle and a sound effect output from a speaker can be decreased, thereby reducing the possibility that the driver and/or a passenger in the vehicle may feel a sense of strangeness relative to the sound effect.

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