A coherent image source method for sound prediction in long spaces with a sound absorbent ceiling

Min, H; Chen, Y; Qiu, X

A coherent image source method for sound prediction in long spaces with a sound absorbent ceiling

Min, H Chen, Y Qiu, X

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Publication Type:: Conference Proceeding
Citation:: INTERNOISE 2014 - 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control, 2014
Issue Date:: 2014-01-01

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Field	Value	Language
dc.contributor.author	Min, H	en_US
dc.contributor.author	Chen, Y	en_US
dc.contributor.author	Qiu, X https://orcid.org/0000-0002-5181-1220	en_US
dc.date.issued	2014-01-01	en_US
dc.identifier.citation	INTERNOISE 2014 - 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control, 2014	en_US
dc.identifier.isbn	9780909882037	en_US
dc.identifier.uri	http://hdl.handle.net/10453/121124
dc.description.abstract	Sound absorbing boundaries can attenuate noise propagation in a long space, but they may lead the sound field hard to be accurately predicted. This paper presents a coherent image source model for sound field in long spaces with a sound absorbing ceiling. In this model, the reflections on the absorbent boundary are separated from those on reflective ones during applying refection coefficients. The model is compared with the classic wave theory, the existing coherent ray-based model and a scale-model experiment. The results show that the proposed model has considerate accuracy and distinct advantage over the existing model for sound prediction in long spaces with an absorbent ceiling.	en_US
dc.relation.ispartof	INTERNOISE 2014 - 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	A coherent image source method for sound prediction in long spaces with a sound absorbent ceiling	en_US
dc.type	Conference Proceeding
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

Abstract:

Sound absorbing boundaries can attenuate noise propagation in a long space, but they may lead the sound field hard to be accurately predicted. This paper presents a coherent image source model for sound field in long spaces with a sound absorbing ceiling. In this model, the reflections on the absorbent boundary are separated from those on reflective ones during applying refection coefficients. The model is compared with the classic wave theory, the existing coherent ray-based model and a scale-model experiment. The results show that the proposed model has considerate accuracy and distinct advantage over the existing model for sound prediction in long spaces with an absorbent ceiling.

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http://hdl.handle.net/10453/121124