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CISDOC database

Document ID (ISN)64024
CIS number 95-711
ISSN - Serial title 0018-7208 - Human Factors
Year 1994
Convention or series no.
Author(s) Gower D.W., Casali J.G.
Title Speech intelligibility and protective effectiveness of selected active noise reduction and conventional communications headsets
Bibliographic information June 1994, Vol.36, No.2, p.350-367. 28 ref.
Abstract Speech intelligibility and noise attenuation were investigated in a conventional passive headset and in an electronic Active Noise Reduction (ANR) headset operated with and without its ANR feature. The ANR unit required a significantly higher speech-to-noise ratio than the two passive headsets to maintain equal intelligibility; the conventional headset afforded comparable intelligibility to the ANR device. On a speech intelligibility basis alone, the results do not justify the additional cost of the ANR headset; however, for severe noise exposure, a properly functioning ANR unit may afford more protection than a similar passive headset.
Descriptors (primary) hearing protection; sound attenuation; speech intelligibility; speech filter type ear protectors; communications
Descriptors (secondary) antiphase noise; evaluation of equipment
Document type D - Periodical articles
Country / State or ProvinceUSA
Subject(s) Noise, hearing and vibration
Broad subject area(s) Physical hazards
Browse category(ies) Ergonomics
Hearing protection