ACTIVE SOUNDPROOFING BLOCK, AND ACTIVE SOUNDPROOFING WALL USING THE SAME

摘要

PURPOSE: An active soundproofing block and an active soundproofing wall with the same are provided to reduce noise as well as reduce the height of a soundproof wall using acoustic impedance active control technology. CONSTITUTION: An active soundproofing block comprises a block body, a speaker(10), and an acoustimeter(20), and an acoustic impedance controller(30). The block body has a hollow. The speaker is installed on the inner wall surface of the hollow of the block body. The acoustimeter is installed around the speaker. The acoustic impedance controller controls the output sound of the speaker and active-controls the acoustic impedance, thereby reducing noise.