Controlling sound radiation through an opening with secondary loudspeakers along its boundaries.

Abstract:

:We propose a virtual sound barrier system that blocks sound transmission through openings without affecting access, light and air circulation. The proposed system applies active control technique to cancel sound transmission with a double layered loudspeaker array at the edge of the opening. Unlike traditional transparent glass windows, recently invented double-glazed ventilation windows and planar active sound barriers or any other metamaterials designed to reduce sound transmission, secondary loudspeakers are put only along the boundaries of the opening, which provides the possibility to make it invisible. Simulation and experimental results demonstrate its feasibility for broadband sound control, especially for low frequency sound which is usually hard to attenuate with existing methods.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Wang S,Tao J,Qiu X

doi

10.1038/s41598-017-13546-2

subject

Has Abstract

pub_date

2017-10-17 00:00:00

pages

13385

issue

1

issn

2045-2322

pii

10.1038/s41598-017-13546-2

journal_volume

7

pub_type

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