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Convention Paper

Measurement of Architectural Speech Security of Closed Offices and Meeting Rooms

Authors: Bradley, John S.; Gover, Bradford N.

AES Convention 119 · Paper 6529 · October 2005

Abstract

A measurement procedure has been developed for rating the architectural speech security of closed offices and meeting rooms. It is based on measuring the attenuation between average levels in the meeting room and received levels at spot locations outside the room, 0.25 m from the room boundaries. These attenuations are used with statistical distributions of speech and noise levels to calculate a suitable signal-to-noise measure. This previously derived objective measure is related to the audibility and intelligibility of the transmitted speech. The measurement at spot receiver locations allows detection and characterization of localized weak spots (“hot spots”) in the room’s boundaries.

Details

Published in
AES Convention 119
AES Convention
119
Paper number
6529
Publication date
October 6, 2005
Session subject
Acoustics & Desktop Production
Affiliation
National Research Council Canada (See document for exact affiliation information.)
Type
Convention Paper