Curving sound field reproduction in free field

Zhao, S; Qiu, X; Lu, J

Curving sound field reproduction in free field

Zhao, S

Qiu, X

Lu, J

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Publication Type:: Conference Proceeding
Citation:: 21st International Congress on Sound and Vibration 2014, ICSV 2014, 2014, 3 pp. 2297 - 2304
Issue Date:: 2014-01-01

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Field	Value	Language
dc.contributor.author	Zhao, S https://orcid.org/0000-0002-6261-8864	en_US
dc.contributor.author	Qiu, X https://orcid.org/0000-0002-5181-1220	en_US
dc.contributor.author	Lu, J	en_US
dc.date.issued	2014-01-01	en_US
dc.identifier.citation	21st International Congress on Sound and Vibration 2014, ICSV 2014, 2014, 3 pp. 2297 - 2304	en_US
dc.identifier.isbn	9781634392389	en_US
dc.identifier.uri	http://hdl.handle.net/10453/121111
dc.description.abstract	Curving sound field reproduction refers to recreating sound propagating along a curving trajectory without disturbing the other side. This kind of sound could bypass the obstacle to reach the region behind the obstacle, which is difficult for conventional sound field reproduction system. Curving sound field reproduction can find applications in various situations, for example, speech signal could be delivered to a person without disturbing another person in front of him/her. This paper investigates the mechanisms for generating sound field based on the wave equation and the spatial sampling theory and the method of using linear loudspeaker arrays to generate such a sound field. A method based on ray acoustics to determine the loudspeaker weights is proposed and the simulation results are in good agreement with the theory. Extension to wideband situation of the method is also investigated and proved to be effective in a broad range of frequencies covering the human speech signal spectrum from 300 Hz to 3400 Hz.	en_US
dc.relation.ispartof	21st International Congress on Sound and Vibration 2014, ICSV 2014	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Curving sound field reproduction in free field	en_US
dc.type	Conference Proceeding
utslib.citation.volume	3	en_US
utslib.for	091301 Acoustics and Noise Control (excl. Architectural Acoustics)	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	closed_access	*
pubs.publication-status	Published	en_US
pubs.volume	3	en_US

Abstract:

Curving sound field reproduction refers to recreating sound propagating along a curving trajectory without disturbing the other side. This kind of sound could bypass the obstacle to reach the region behind the obstacle, which is difficult for conventional sound field reproduction system. Curving sound field reproduction can find applications in various situations, for example, speech signal could be delivered to a person without disturbing another person in front of him/her. This paper investigates the mechanisms for generating sound field based on the wave equation and the spatial sampling theory and the method of using linear loudspeaker arrays to generate such a sound field. A method based on ray acoustics to determine the loudspeaker weights is proposed and the simulation results are in good agreement with the theory. Extension to wideband situation of the method is also investigated and proved to be effective in a broad range of frequencies covering the human speech signal spectrum from 300 Hz to 3400 Hz.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/121111