Acoustical privacy in the landscaped office

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AuthorSearch for:
Journal titleJournal of the Acoustical Society of America
Pages15351543; # of pages: 9
Subjectlandscaped offices; sound insulating; masking noise; ceilings; Speech security
AbstractTwo landscaped offices were used for field studies of the acoustical isolation value of masking noise, absorptive ceilings and partial-height screens. The occupants of one of the offices were recruited for a subjective study of the relative acceptability of various masking noises. The study showed that this group consistently preferred less noise -- a conclusion that contradicts some previous experience. Interviews indicated that the acceptability of masking noise is closely linked to the occupants' activities and the resulting need for privacy. Propagation measurements were made under a flat lay-in ceiling configuration to determine the effectiveness of screens, ceiling materials and ceiling baffles. The ceiling baffles were not found to be a practical means of ensuring a low ceiling reflection coefficient. The results of the measurements are analyzed in terms of changes in articulation index. Consideration of the area disturbed by a hypothetical speaker emphasizes the importance of small relative changes in articulation index caused by small changes in physical parameters.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number13435
NPARC number20359060
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Record identifiereb05ad5c-f8a0-4898-84fd-aa5acc33802a
Record created2012-07-20
Record modified2016-05-09
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