Pure-Tone Hearing Thresholds and Otoacoustic Emissions in Students of Music Academies

Małgorzata Pawlaczyk-Łuszczyńska, Małgorzata Zamojska-Daniszewska, Adam Dudarewicz and Kamil Zaborowski
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Małgorzata Pawlaczyk-Łuszczyńska: Department of Physical Hazards, Nofer Institute of Occupational Medicine, 91-348 Lodz, Poland
Małgorzata Zamojska-Daniszewska: Department of Physical Hazards, Nofer Institute of Occupational Medicine, 91-348 Lodz, Poland
Adam Dudarewicz: Department of Physical Hazards, Nofer Institute of Occupational Medicine, 91-348 Lodz, Poland
Kamil Zaborowski: Department of Physical Hazards, Nofer Institute of Occupational Medicine, 91-348 Lodz, Poland

IJERPH, 2021, vol. 18, issue 3, 1-25

Abstract: The objective of this study was to assess the hearing of music students in relation to their exposure to excessive sounds. A standard pure-tone audiometry, transient-evoked otoacoustic emissions (TEOAEs) and distortion-product otoacoustic emissions (DPOAEs) were determined in 163 students of music academies, aged 22.8 ± 2.6 years. A questionnaire survey and sound pressure level measurements during solo and group playing were also conducted. The control group comprised 67 subjects, mainly non-music students, aged 22.8 ± 3.3 years. Study subjects were exposed to sounds at the A-weighted weekly noise exposure level (L EX,w ) from 75 to 106 dB. There were no significant differences in the hearing thresholds between groups in the frequency range of 4000–8000 Hz. However, music students compared to control group exhibited lower values of DPOAE amplitude (at 6000 and 7984 Hz) and signal-to-noise ratio (SNR) (at 984, 6000, and 7984 Hz) as well as SNR of TEOAE (in 1000 Hz band). A significant impact of noise exposure level, type of instrument, and gender on some parameters of measured otoacoustic emissions was observed. In particular, music students having L EX,w ? 84.9 dB, compared to those with L EX,w < 84.9 dB, achieved significantly lower DPOAE amplitude at 3984 Hz. Meanwhile, both TEOAE and DPOAE results indicated worse hearing in students playing percussion instruments vs. wind instruments, and wind instrument players vs. students playing stringed instruments.

Keywords: noise-induced hearing loss; music students; exposure to excessive sounds; pure-tone audiometry; hearing threshold levels; high-frequency notches; transient evoked otoacoustic emission (TEOAE); distortion product otoacoustic emission (DPOAE) (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
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