Speech and Noise Levels Associated with Meeting Rooms

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DOIResolve DOI: http://doi.org/10.4224/20378364
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TypeTechnical Report
Series titleResearch Report (National Research Council Canada. Institute for Research in Construction); no. RR-170
Physical description54 p.
SubjectSpeech security
AbstractArchitectural speech security refers to the inability of eavesdroppers to hear speech sounds from nearby meeting rooms and offices where confidential material is being discussed. (Here ?architectural' refers to the security provided by the building structure and associated building systems such as ventilation systems). The audibility of speech sounds from meeting rooms will depend on how loud the transmitted speech sounds are relative to the existing ambient noise levels. It is therefore necessary to know the values of typical speech levels generated in meeting rooms and the levels of typical ambient noises in spaces near meeting rooms. This report presents the results of extensive measurements of speech sounds in meeting rooms and ambient noises in nearby spaces. The probability of various speech and noise levels occurring is reported and recommendations are made for using these results in calculations to estimate the architectural speech security of particular offices and meeting rooms.
Publication date
PublisherNational Research Council Canada
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC numberNRC-IRC-16470
NPARC number20378364
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Record identifier996b19a5-6cde-4a65-8d6a-6402a97c9cb5
Record created2012-07-24
Record modified2017-06-14
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