Prof Bill Davies W.Davies@salford.ac.uk
Professor
Measuring auditorium seat absorption
Davies, WJ; Orlowski, RJ; Lam, YW
Authors
RJ Orlowski
YW Lam
Abstract
There is a need for a more accurate laboratory measurement method to predict auditorium seat absorption. The traditional method tends to overpredict the absorption of the exposed front and sides of seating blocks. An alternative reverberation chamber method was studied that involves the use of barriers to obtain realistic measurements of front and side absorption. This method was validated by comparing measurements of seats made in a reverberation chamber with in situ absorption data for the same seats, calculated from reverberation time measurements in ten auditoria with and without the seats present. The accuracy of the alternative method was satisfactory in all cases, although a severe lack of diffusion in two of the halls hindered the validation process. It was found that using a frequency-constant edge correction strip to account for side and front absorption could lead to significant errors in auditorium absorption prediction.
Citation
Davies, W., Orlowski, R., & Lam, Y. (1994). Measuring auditorium seat absorption. The Journal of the Acoustical Society of America (Online), 96(2), 879-888. https://doi.org/10.1121/1.410263
Journal Article Type | Article |
---|---|
Publication Date | Jan 1, 1994 |
Deposit Date | Jul 16, 2012 |
Publicly Available Date | Apr 5, 2016 |
Journal | The Journal of the Acoustical Society of America (JASA) |
Print ISSN | 0001-4966 |
Peer Reviewed | Peer Reviewed |
Volume | 96 |
Issue | 2 |
Pages | 879-888 |
DOI | https://doi.org/10.1121/1.410263 |
Keywords | reverberation chamber measurements; theater chair absorption |
Publisher URL | http://dx.doi.org/10.1121/1.410263 |
Additional Information | Additional Information : 1 PB503 J ACOUST SOC AMER |
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