Reflection of audio sounds generated by a parametric array loudspeaker.

Zhong, J; Wang, S; Kirby, R; Qiu, X

Reflection of audio sounds generated by a parametric array loudspeaker.

Zhong, J

Wang, S

Kirby, R

Qiu, X

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Publisher:: ACOUSTICAL SOC AMER AMER INST PHYSICS
Publication Type:: Journal Article
Citation:: The Journal of the Acoustical Society of America, 2020, 148, (4), pp. 2327-2336
Issue Date:: 2020-10

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Field	Value	Language
dc.contributor.author	Zhong, J https://orcid.org/0000-0002-9972-8004
dc.contributor.author	Wang, S https://orcid.org/0000-0002-0392-0246
dc.contributor.author	Kirby, R https://orcid.org/0000-0002-3520-1377
dc.contributor.author	Qiu, X https://orcid.org/0000-0002-5181-1220
dc.date.accessioned	2021-03-19T01:05:31Z
dc.date.available	2021-05-18T19:02:25Z
dc.date.issued	2020-10
dc.identifier.citation	The Journal of the Acoustical Society of America, 2020, 148, (4), pp. 2327-2336
dc.identifier.issn	0001-4966
dc.identifier.issn	1520-8524
dc.identifier.uri	http://hdl.handle.net/10453/147370
dc.description.abstract	The reflection of audio sounds generated by a parametric array loudspeaker (PAL) is investigated in this paper. The image source method and the non-paraxial PAL radiation model under the quasilinear approximation are used to calculate the reflected audio sound from an infinitely large surface with an arbitrary incident angle. The effects of the surface absorption in the ultrasound frequency range are studied, and the simulation and experiment results show that the reflection behavior of audio sounds generated by a PAL is different from those generated by traditional audio sources. The reason is that the reflected sound generated by the PAL consists of the reflection of audio sounds generated by incident ultrasounds and the audio sounds generated by the reflected ultrasound, and it is the latter that determines the directivity of the reflected audio sound.
dc.format	Print
dc.language	eng
dc.publisher	ACOUSTICAL SOC AMER AMER INST PHYSICS
dc.relation	http://purl.org/au-research/grants/arc/LP160100616
dc.relation.ispartof	The Journal of the Acoustical Society of America
dc.relation.isbasedon	10.1121/10.0002161
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject.classification	Acoustics
dc.title	Reflection of audio sounds generated by a parametric array loudspeaker.
dc.type	Journal Article
utslib.citation.volume	148
utslib.location.activity	United States
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.consider-herdc	false
dc.date.updated	2021-03-19T01:05:25Z
pubs.issue	4
pubs.publication-status	Published
pubs.volume	148
utslib.citation.issue	4

Abstract:

The reflection of audio sounds generated by a parametric array loudspeaker (PAL) is investigated in this paper. The image source method and the non-paraxial PAL radiation model under the quasilinear approximation are used to calculate the reflected audio sound from an infinitely large surface with an arbitrary incident angle. The effects of the surface absorption in the ultrasound frequency range are studied, and the simulation and experiment results show that the reflection behavior of audio sounds generated by a PAL is different from those generated by traditional audio sources. The reason is that the reflected sound generated by the PAL consists of the reflection of audio sounds generated by incident ultrasounds and the audio sounds generated by the reflected ultrasound, and it is the latter that determines the directivity of the reflected audio sound.

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http://hdl.handle.net/10453/147370