NOISE SUPPRESSION DEVICE AND SOUND GENERATOR

摘要

PROBLEM TO BE SOLVED: To improve the sound insulating performance between adjacent rooms without remodeling partitions. SOLUTION: A correction circuit 12 provided with an A/D converter 5 for A/D conversion of a sound signal from a sound output circuit 11 of a TV 1, a digital filter 6 which filters the sound signal subjected to A/D conversion to attenuate a sound signal in the band of the resonance frequency of a partition 3, and a D/A converter 7 which subjects the sound signal corrected by filtering to D/A conversion to output it to an amplifier 13 is provided in the preceding stage of the amplifier 13 of a sound output device of the TV 1 installed in a room A demarcated by the partition 3 to attenuate the sound signal in the band corresponding to the resonance frequency of the partition 3.