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In-situ sound insulation measurement when a room is very absorptive

From National Research Council Canada

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Affiliation
  1. National Research Council of Canada. NRC Institute for Research in Construction
FormatText, Article
ConferenceAcoustics Week in Canada 2001, October 1, 2001, Toronto, Ontario, Canada
SubjectSound transmission & insulation; ASTM E336; transmission loss; sound insulation
Abstract
Although noise transmission loss test methods (ASTM E90, E336, ISO 140) assume that the energy density of the reverberant field will dominate, in-situ measurements may involve significant absorption in rooms that may cause a marked deviation from these idealized conditions. This paper reports findings of investigations made to assess the sensitivity of the ASTM E336 to absorption in either the source or receiving room, and its effect on the number of microphones needed to sample the resulting field.
Publication date
PublisherCanadian Acoustical Association
In
  • Canadian Acoustics 29, no. September 3 (1 September 2001): 60–61.
LanguageEnglish
Peer reviewedYes
NRC numberNRCC 45020
NRC-IRC-10390
NPARC number20378427
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Record identifier478212dc-8a61-49f7-9569-3e5e9fe9c0d9
Record created2012-07-24
Record modified2024-05-14
Date modified: