Spatial filtering of audible sound with acoustic landscapes

Wang, S; Tao, J; Qiu, X; Cheng, J

Spatial filtering of audible sound with acoustic landscapes

Wang, S Tao, J Qiu, X

Cheng, J

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Publication Type:: Journal Article
Citation:: Applied Physics Letters, 2017, 111 (4)
Issue Date:: 2017-07-24

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Field	Value	Language
dc.contributor.author	Wang, S	en_US
dc.contributor.author	Tao, J	en_US
dc.contributor.author	Qiu, X https://orcid.org/0000-0002-5181-1220	en_US
dc.contributor.author	Cheng, J	en_US
dc.date.available	2020-05-25T19:05:33Z
dc.date.issued	2017-07-24	en_US
dc.identifier.citation	Applied Physics Letters, 2017, 111 (4)	en_US
dc.identifier.issn	0003-6951	en_US
dc.identifier.uri	http://hdl.handle.net/10453/125195
dc.description.abstract	© 2017 Author(s). Acoustic metasurfaces manipulate waves with specially designed structures and achieve properties that natural materials cannot offer. Similar surfaces work in audio frequency range as well and lead to marvelous acoustic phenomena that can be perceived by human ears. Being intrigued by the famous Maoshan Bugle phenomenon, we investigate large scale metasurfaces consisting of periodic steps of sizes comparable to the wavelength of audio frequency in both time and space domains. We propose a theoretical method to calculate the scattered sound field and find that periodic corrugated surfaces work as spatial filters and the frequency selective character can only be observed at the same side as the incident wave. The Maoshan Bugle phenomenon can be well explained with the method. Finally, we demonstrate that the proposed method can be used to design acoustical landscapes, which transform impulsive sound into famous trumpet solos or other melodious sound.	en_US
dc.relation.ispartof	Applied Physics Letters	en_US
dc.relation.isbasedon	10.1063/1.4995966	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Applied Physics	en_US
dc.title	Spatial filtering of audible sound with acoustic landscapes	en_US
dc.type	Journal Article
utslib.citation.volume	4	en_US
utslib.citation.volume	111	en_US
utslib.for	091301 Acoustics and Noise Control (excl. Architectural Acoustics)	en_US
utslib.for	02 Physical Sciences	en_US
utslib.for	09 Engineering	en_US
utslib.for	10 Technology	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
utslib.copyright.status	open_access	*
pubs.issue	4	en_US
pubs.publication-status	Published	en_US
pubs.volume	111	en_US

Abstract:

© 2017 Author(s). Acoustic metasurfaces manipulate waves with specially designed structures and achieve properties that natural materials cannot offer. Similar surfaces work in audio frequency range as well and lead to marvelous acoustic phenomena that can be perceived by human ears. Being intrigued by the famous Maoshan Bugle phenomenon, we investigate large scale metasurfaces consisting of periodic steps of sizes comparable to the wavelength of audio frequency in both time and space domains. We propose a theoretical method to calculate the scattered sound field and find that periodic corrugated surfaces work as spatial filters and the frequency selective character can only be observed at the same side as the incident wave. The Maoshan Bugle phenomenon can be well explained with the method. Finally, we demonstrate that the proposed method can be used to design acoustical landscapes, which transform impulsive sound into famous trumpet solos or other melodious sound.

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http://hdl.handle.net/10453/125195