[Is it dangerous to patronize discotheques?]

Sound levels measured during 6 music-exhibitions are situated, for the equivalent level (Leq), between 92 and 105 dB(A), and peaks of 120 dB(A) have been measured. Audiograms recorded before and after the exhibitions show a great auditive fatigue. Musicians and usual spectators present in comparison with nonexposed subjects of the same age a lightly impaired sensibility of hearing.