Abstract
The purposes of this experiment were to measure the sound intensity level in several discotheques and to compare the temporary threshold shift of subjects exposed to 60 minutes of discotheque sound at several intensity levels. We measured the sound intensity level with our own personal noise exposure meter.
1. Sound intensity levels in 4 discotheques were ranged from 95dB (A) to 105.9dB (A).
2. The largest TTS were 44dB at 4kHz for TTS2 and was found in the subjects, who were exposed to the intensity level of 107.0dB (A).
3. It appears that the intensity level of 105dB is too high from the standpoint of the risk for hearing damage and that the level of 90dB does not satisfy audience.
