Robin, Olivier, Berry, Alain, Doutres, Olivier et Atalla, Noureddine.
2014.
« Measuring sound absorption coefficient under a synthesized diffuse acoustic field ».
In NoiseCon' 14: Advancing the Technology and Practice of Noise Control Engineering (Fort Lauderdale, FL, USA, Sept. 8-10, 2014)
pp. 848-855.
Springfield, IL, USA : Institute of Noise Control Engineering of the United States of America.
|
PDF
Doutres O 2014 9471 Measuring sound absorption coefficient.pdf - Published Version Use licence: All rights reserved to copyright holder. Download (596kB) | Preview |
Abstract
This paper proposes an experimental method to estimate the absorption coefficient of absorbing materials using a synthesized diffuse acoustic field in free-field conditions. Comparisons made with the standard reverberant room method and numerical simulations, using the transfer matrix method, show that the proposed approach do not exhibit non-physical trends of the reverberant room method and provide absorption coefficients in good agreement with those obtained by simulations for a laterally infinite material. Smaller samples than those required by standards can be used, together with a simplified implementation of absorption measurements under a precise and repeatable diffuse acoustic field.
Item Type: | Conference proceeding | ||
---|---|---|---|
Professor: |
|
||
Affiliation: | Génie mécanique | ||
Date Deposited: | 09 Apr 2015 15:07 | ||
Last Modified: | 23 Nov 2017 19:40 | ||
URI: | https://espace2.etsmtl.ca/id/eprint/9471 |
Actions (login required)
![]() |
View Item |