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Temporary Threshold Shift and Recovery Patterns from Two Types of Rock and Roll Music Presentation

1972; Acoustical Society of America; Volume: 51; Issue: 4B Linguagem: Inglês

10.1121/1.1912968

1520-9024

William F. Rintelmann, Robert F. Lindberg, Ellen K. Smitley,

Hearing, Cochlea, Tinnitus, Genetics

The purpose of this experiment was to clarify the effects of exposure to intermittent and continuous rock and roll music on hearing threshold level. Twenty normal-hearing females were exposed to recorded rock and roll music on two occasions in a sound field at 110-dB sound-pressure level. One taped recording consisted of music played continuously for 60 min; the other recording was the same music, but with 1 min of discotheque ambient noise (“break times”) spliced between each 3-min musical selection. Pure-tone air-conduction threshold levels were measured monaurally via Békésy audiometry at 1000, 2000, 3000, 4000, 6000, and 8000 Hz prior to, and four times following, each exposure. Temporary threshold shift (TTS) and recovery patterns from the continuous and intermittent conditions were compared. Statistical analysis revealed that TTS2 in the intermittent condition was significantly less than in the continuous condition at 2000, 3000, 4000, and 8000 Hz. Recovery time, however, was similar under both conditions.