Acoustics for speech in classrooms and meeting rooms

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ConferenceWESPAC (Western Pacific Acoustics Conference): 07 April 2003, Melbourne, Australia
Pages14; # of pages: 4
Subjectspeech intelligibility, speech in rooms, classroom acoustics, meeting rooms; Classroom acoustics; Speech security
AbstractGood acoustical design should optimise room acoustics and minimise unwanted noise so that effective speech-to-noise ratios are maximised in rooms for speech. Although reported noise levels in classrooms almost always exceed ideal criteria, these results may be questioned because it is difficult to measure the speech and noise levels that actually occur during speech. Many criteria are based on studies that show a poor understanding of room acoustics and tend to prescribe more absorptive environments because they ignore the positive effects of early reflections. The more stringent requirements for various special needs groups of listeners are much less well defined. We still design rooms in terms of reverberation time that only indirectly relates to critical room acoustics details and even this we cannot do accurately. This paper reviews recent studies of these problems and outlines remaining research needs.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number46120
NPARC number20378462
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Record identifierfa3cc7ed-161c-4efa-b3ca-4959adaec3d4
Record created2012-07-24
Record modified2016-05-09
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