Sound levels recorded within the symphony orchestra and risk criteria for hearing loss

Author(s): Karlsson, K.

Journal/Book: Scand Audiol. 1983; 12: 215-21.

Abstract: Investigations into noise-induced hearing loss should consist of two parts: a mapping of the sound environment and a charting of hearing loss. This paper is the first part of such an investigation: a mapping of sound levels and sound spectra within the symphony orchestra. It was found that 'heavy' symphonic music exceeds the permitted dose for industrial noise equivalent to 85 dB(A) for a full working week. The permitted noise dose is reached for ' heavy' music after a working time of 10 hours per week in 'exposed' positions, such as in front of trumpets, and after 25 hours in 'normal' positions. A simple method to estimate the 'noise' exposure in equivalent sound level for combination of different sorts of music has been developed.

Keyword(s): Hearing Loss, Noise-Induced|ET. Music|. Occupational Diseases|ET

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