An experimental study on the effect of diffusers on the sound absorption measurement

Zhu, Q

An experimental study on the effect of diffusers on the sound absorption measurement

Zhu, Q

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Publisher:: AAS
Publication Type:: Conference Proceeding
Citation:: Annual Conference of the Australian Acoustical Society 2021: Making Waves, AAS 2021, 2022, pp. 31-38
Issue Date:: 2022-01-01

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Field	Value	Language
dc.contributor.author	Zhu, Q https://orcid.org/0000-0003-3942-0945
dc.date	2022-02-21
dc.date.accessioned	2023-01-18T06:01:07Z
dc.date.available	2023-01-18T06:01:07Z
dc.date.issued	2022-01-01
dc.identifier.citation	Annual Conference of the Australian Acoustical Society 2021: Making Waves, AAS 2021, 2022, pp. 31-38
dc.identifier.isbn	9781713844266
dc.identifier.uri	http://hdl.handle.net/10453/165147
dc.description.abstract	Limited reproducibility of absorption coefficients measured in different laboratories has been observed in the recent inter-laboratory test. This measurement uncertainty can result from the room acoustic design variance amongst laboratories and the material selection for qualification tests. Sound absorption measurements were performed in the reverberation room at the University of Technology Sydney, with test sample sizes and materials under different room acoustic conditions by installing different numbers of diffusers. With the measured data, initial work was made to decompose the sound absorption components based on the geometric feature of the test specimen, which is potential to assist the assessment of the diffuseness of the test facility and the optimization of diffuser installation.
dc.language	en
dc.publisher	AAS
dc.relation.ispartof	Annual Conference of the Australian Acoustical Society 2021: Making Waves, AAS 2021
dc.relation.ispartof	Annual Conference of the Australian Acoustical Society
dc.rights	info:eu-repo/semantics/openAccess
dc.title	An experimental study on the effect of diffusers on the sound absorption measurement
dc.type	Conference Proceeding
utslib.location.activity	Wollongong, USA
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	2023-01-18T06:01:06Z
pubs.finish-date	2022-02-23
pubs.place-of-publication	Australia
pubs.publication-status	Published
pubs.start-date	2022-02-21
dc.location	Australia

Abstract:

Limited reproducibility of absorption coefficients measured in different laboratories has been observed in the recent inter-laboratory test. This measurement uncertainty can result from the room acoustic design variance amongst laboratories and the material selection for qualification tests. Sound absorption measurements were performed in the reverberation room at the University of Technology Sydney, with test sample sizes and materials under different room acoustic conditions by installing different numbers of diffusers. With the measured data, initial work was made to decompose the sound absorption components based on the geometric feature of the test specimen, which is potential to assist the assessment of the diffuseness of the test facility and the optimization of diffuser installation.

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http://hdl.handle.net/10453/165147