ACTIVE SOUNDPROOFING BLOCK, ACTIVE SOUNDPROOFING BLOCK SYSTEM, AND ACTIVE SOUNDPROOFING WALL USING THE SAME

摘要

PURPOSE: An active soundproofing block, an active soundproofing block system, and an active soundproofing wall using the same are provided to pile up a soundproof wall without spoiling the beauty of the surroundings. CONSTITUTION: An active soundproofing block(1) comprises a block body(10), a speaker(13), a noise measurement device, an error measurement device, and an active noise control part. The block body has a hollow(11). The speaker is positioned along the inner surface of the block body. The noise measurement device is installed on the block body and measures the noise generated by a noise source. The error measurement device is installed on the block body and measures the remaining noise of a target. The active noise control part controls a control sound source which reduces noise to be emitted through the speakers.