A case study on the transmission loss suite in the University of Technology Sydney

Zhu, Q

A case study on the transmission loss suite in the University of Technology Sydney

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. 23-30
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	2023-01-18T05:59:35Z
dc.date.available	2023-01-18T05:59:35Z
dc.date.issued	2022-01-01
dc.identifier.citation	Annual Conference of the Australian Acoustical Society 2021: Making Waves, AAS 2021, 2022, pp. 23-30
dc.identifier.isbn	9781713844266
dc.identifier.uri	http://hdl.handle.net/10453/165146
dc.description.abstract	This paper introduces the newly built sound transmission loss suite at the Centre for Audio, Acoustics and Vibration (CAAV) at the University of Technology Sydney. This report covers vital parameters of the transmission loss suite when testing a typical heavyweight masonry wall, including the background noise, the spatial variations of the sound pressure level, the reverberation time, the absorption coefficients and the transmission loss. The averaged overall background noise level inside the receiving room is 21.3 dB or 15.5 dBA, approaching the test system/equipment's range. The standard deviation of the sound pressure levels in each test room is less than 1.6 dB in one-third-octave bands with centre frequencies between 100 Hz and 5000 Hz. The weighted sound reduction index (Rw) of the test wall is 66 dB with spectrum adaptation terms (C and Ctr) being −1 dB and −6 dB for the A-weighted pink noise spectrum and urban traffic noise spectrum, respectively.
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	A case study on the transmission loss suite in the University of Technology Sydney
dc.type	Conference Proceeding
utslib.location.activity	Wollongong
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	2023-01-18T05:59:34Z
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:

This paper introduces the newly built sound transmission loss suite at the Centre for Audio, Acoustics and Vibration (CAAV) at the University of Technology Sydney. This report covers vital parameters of the transmission loss suite when testing a typical heavyweight masonry wall, including the background noise, the spatial variations of the sound pressure level, the reverberation time, the absorption coefficients and the transmission loss. The averaged overall background noise level inside the receiving room is 21.3 dB or 15.5 dBA, approaching the test system/equipment's range. The standard deviation of the sound pressure levels in each test room is less than 1.6 dB in one-third-octave bands with centre frequencies between 100 Hz and 5000 Hz. The weighted sound reduction index (Rw) of the test wall is 66 dB with spectrum adaptation terms (C and Ctr) being −1 dB and −6 dB for the A-weighted pink noise spectrum and urban traffic noise spectrum, respectively.

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http://hdl.handle.net/10453/165146