SYSTEM FOR ACTIVE NOISE CONTROL BASED ON AUDIO SYSTEM OUTPUT

PROBLEM TO BE SOLVED: To provide an active noise control system which adjusts a sound wave generated by the active noise control system and causing destructive interference, on the basis of an output of an audio-visual system.SOLUTION: A sound reduction system includes: a processor; and an active noise control system which is configured to receive a first input signal representing sounds existing in a prescribed area, to receive a second input signal representing an output generated by an audio system, to generate an anti-noise signal on the basis of the first input signal, and to adjust the anti-noise signal on the basis of the second input signal. The anti-noise signal is configured to drive a loud speaker to generate audible sounds and thereby to destructively interfere with noise present in a target space.