Using a spherical microphone array for identification of airborne sound transmission paths

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Proceedings titleCanadian Acoustics
ConferenceCanadian Acoustical Association Conference: 06 October 2004, Ottawa, ON
IssueSeptember 3
Pages174175; # of pages: 2
Subjectsound transmission, speech privacy, microphone array; Walls
AbstractAssessment of the sound insulation properties of building partitions (e.g., walls, floors) is usually conducted according to standard procedures. ASTM E90 and E336 and ISO 140-3 and 140-4 provide means of rating the sound insulation performance of partitions in the laboratory or in the field. The results of these tests do not necessarily indicate whether an otherwise highly-insulating partition contains weak spots or leaks, other than a lowered overall rating. This paper presents the results of some initial efforts using a highly directional microphone array measurement system for identification of such weak spots.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number47307
NPARC number20377424
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Record identifierdba8a10e-4b66-4406-8e6b-664c4d813664
Record created2012-07-24
Record modified2016-05-09
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