Patent ID: 8130974

Claim:
A vehicular active sound control system comprising: control signal generating means for generating a control signal representative of a sound change depending on an engine rotation frequency of a vehicle; audio signal generating means for generating an audio signal from a sound source; first output means disposed in a substantially central area in front of front seats of said vehicle in the transverse direction of said vehicle; second output means disposed in respective left and right areas in front of the front seats of said vehicle in the transverse direction of said vehicle; third output means disposed in a rear area behind a rear seat of said vehicle; first amplifying means disposed between the control signal generating means and the first output means, for amplifying the control signal and outputting a first amplified control signal; second amplifying means disposed between the control signal generating means and the second output means, for amplifying the control signal and outputting a second amplified control signal; first combined signal output means disposed between the first amplifying means and the first output means, for combining the first amplified control signal output from the first amplifying means with the audio signal and outputting the combined signal as a first combined signal; second combined signal output means disposed between the second amplifying means and the second output means, for combining the second amplified control signal output from the second amplifying means with the audio signal and outputting the combined signal as a second combined signal; third combined signal output means disposed between the control signal generating means and the third output means, for combining the control signal with the audio signal and outputting the combined signal as a third combined signal; third amplifying means disposed between the first combined signal output means and the first output means, for amplifying the first combined signal and outputting a first amplified combined signal; fourth amplifying means disposed between the second combined signal output means and the second output means, for amplifying the second combined signal and outputting a second amplified combined signal; and fifth amplifying means disposed between the third combined signal output means and the third output means, for amplifying the third combined signal and outputting a third amplified combined signal; wherein a gain of the first amplifying means and a gain of the second amplifying means are changed based on the engine rotation frequency.