Masking Speech in Open-Plan Offices with Simulation Ventilation Noise: Noise-Level and Spectral Composition Effects on Acoustic Satisfaction

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TypeTechnical Report
Series titleInternal Report (National Research Council Canada. Institute for Research in Construction); no. IRC-IR-846
Physical description53 p.
SubjectCOPE; Open-plan offices [cubicles]; Office acoustics; Speech security
AbstractThe Cost-Effective Open-Plan Environments (COPE) project plan identified a need to develop relationships between acoustic conditions in open-plan offices and occupant satisfaction with those conditions. Two experiments were designed to meet this need. In each experiment, participants hired from a staffing agency for one day experienced 15 different simulated ventilation noises in combination with simulated telephone conversations, and provided ratings of their satisfaction with each noise condition. Each exposure consisted of a 15-minute period of work on memory and clerical tasks, followed by 2-3 minutes to complete a questionnaire concerning satisfaction, speech intelligibility, and the characteristics of the noise. This report concerns only the questionnaire data. Memory and clerical task performance in relation to the noise conditions will be reported separately. · Experiment 1: Noise spectrum effects on satisfaction. In this experiment subjects experienced 15 different simulated noise spectra in combination with the speech from simulated telephone conversations. · Experiment 2: Noise spectrum and noise level effects on satisfaction. This experiment used three noise spectra at each of five A-weighted noise levels, for a total of 15 different noise conditions in combination with the speech from simulated telephone conversations.
Publication date
PublisherNational Research Council Canada
AffiliationNRC Institute for Research in Construction; National Research Council Canada
NoteWas also published as a conference paper at the 63rd Annual Convention of the Canadian Psychological Association held in Vancouver, B.C., on May 30-June 1, 2002
Peer reviewedNo
NRC numberNRC-IRC-14325
NPARC number20386334
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Record identifier7b46ed82-9360-424c-92f1-47cde0e2620b
Record created2012-07-25
Record modified2017-06-14
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