Letters to the Editor: 6-kHz notch in noise-induced hearing loss


  • D.Y. Chung Workers' Compensation Board of British Columbia, Richmond, BC, Canada


acoustic noise, biological effects of acoustic radiation, hearing, noise-induced hearing loss, industrial noise, audiograms, presbycusis


Audiograms from 49711 workers exposed to industrial noise over 85 dB(A) and with no obvious ear pathology were analyzed by sex and age. It was found that the configuration of the mean audiograms shows a notch at 6 kHz instead of 4 kHz reported in previous studies. When the mean audiograms were corrected for presbycusis, the notch shifted from 6 kHz to 4 kHz only for the age groups over 45 years. The reasons for the difference between results of previous studies and this study are discussed

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How to Cite

Chung D. Letters to the Editor: 6-kHz notch in noise-induced hearing loss. Canadian Acoustics [Internet]. 1983 Oct. 1 [cited 2024 May 27];11(4):17-23. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/510



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