|Document ID (ISN)||64024|
|ISSN - Serial title
||0018-7208 - Human Factors
|Convention or series no.
||Gower D.W., Casali J.G.
||Speech intelligibility and protective effectiveness of selected active noise reduction and conventional communications headsets
||June 1994, Vol.36, No.2, p.350-367. 28 ref.
||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.
||hearing protection; sound attenuation; speech intelligibility; speech filter type ear protectors; communications
||antiphase noise; evaluation of equipment
||D - Periodical articles
|Country / State or Province||USA|
||Noise, hearing and vibration
|Broad subject area(s)