Potential risk of hearing damage associated with exposure to highly amplified music.
The experience of highly amplified music listening is described from a psychoacoustic and phenomenologic standpoint in order to characterize both the estimated risk of hearing damage and the perception of such a risk. Exposure as attenders and as the result of a professional activity are examined separately. Data collected in discotheques are analyzed, showing that this type of music is characterized by (a) strong pulsations, the rate of which is approximately 2 Hz; (b) a narrow dynamic range; and (c) a sloping spectrum with maximum energy in the 1/3-octave centered at 63 Hz. This spectrum is almost parallel to the free-field hearing threshold curve raised by 80 dB. Although temporary threshold shift is predictable for different durations of exposure to this type of sound, the long-term risk of permanent threshold shift appears to be very slight for those who are regularly exposed to loud music. An anthropologic approach is proposed with a health education approach to the prevention of hearing loss resulting from amplified music listening.
Groupe d'acoustique de l'Université de Montréal, Québec, Canada.
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Hétu
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M
Fortin
D000669:Amplifiers, Electronic / Q000009:adverse effects*; D006317:Hearing Loss, Noise-Induced; D006801:Humans; D009146:Music