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 Repjournal_title
Scientific reportsauthors
Wang S,Tao J,Qiu Xdoi
10.1038/s41598-017-13546-2subject
Has Abstractpub_date
2017-10-17 00:00:00pages
13385issue
1issn
2045-2322pii
10.1038/s41598-017-13546-2journal_volume
7pub_type
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