The effects of light aircraft noise on six subjects during flight operations were investigated. The noise environment in the Piper Apache light aircraft was found to be capable of producing hearing threshold shifts. The following are the principal findings and conclusions: (1) Through most of the frequency range for which measurements were taken (500 to 6000 Hz), there was a regular progression showing increased loss of auditory acuity as a function of increased exposure time. (2) Extensive variability was found in the results among subjects, and in the measured loss at discrete frequencies for each subject. (3) The principal loss of hearing occurred at the low frequencies, around 500 Hz.


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    Title :

    Short term hearing loss in general aviation operations, phase 1, part 1


    Contributors:

    Publication date :

    1972-09-01


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English


    Keywords :




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