Distortion product otoacoustic emission of symphony orchestra musicians before and after rehearsal

Abstract

The 2f1-f2 distortion product otoacoustic emission (DPOAE) and hearing levels are obtained for 12 normal-hearing symphony orchestra musicians both before and after their rehearsal. The DPOAE fine structures are determined and analyzed according to the character and prevalence of ripples. Hearing levels, DPOAE levels, and DPOAE fine structures before and after rehearsal are similar, indicating that no or marginal temporary change of the state of hearing were caused by the exposure. The data were further compared to similar data for occupationally nonexposed subjects, one group which was age and gender matched, and other two groups of younger individuals (one group with better hearing levels than the other). The data for the age and gender matched group compared well with the musicians data (and the data for the group of better-hearing younger individuals). In general, the analyses of hearing thresholds and DPOAE data thus lead to the same conclusions concerning the state of hearing.

Impact of occupational noise on pure-tone threshold and distortion product otoacoustic emissions after one workday

“…This discrepancy might be explained by the fact that in their studies PTS was considered whereas in our study presumably TTS occurred and the underlying mechanisms for PTS and TTS are supposed to be different (Saunders et al, 1985;Nordmann et al, 2000). Reuter and Hammershøi (2007) reported that for symphony orchestra musicians, no significant shift occurred either in puretone thresholds or in DPOAE levels after 4 h of rehearsal (ca. 80 dB(A)).…”

Characteristics of the 2f1-f2 distortion product otoacoustic emission in a normal hearing population

“…Attenuation of fine structure following overexposure to noise (Engdahl and Kemp, 1996) as well as aspirin consumption (Brown et al, 1993;Rao and Long, 2011) or cisplatin exposure (McMillan et al, 2012) provides further support for this notion of sensitivity of fine structure to minor insults to the cochlea. Despite these findings, the sensitivity of fine structure to cochlear insult remains unclear as additional attempts to establish the relationship between fine structure and noise-induced changes in the cochlea have failed to yield clear results (e.g., Reuter and Hammershøi, 2007).…”

Músicos de pop-rock: avaliação da satisfação com protetores auditivos

“…This result may reflect the fact that OAE are a measurement of cochlear motor activity due to outer hair cell action. Because hearing loss caused by high sound pressure levels starts with outer hair cell damage, [27][28][29][30][31] OAE may be more sensitive than pure tone audiometry to detect early changes due to exposure to amplified music. 4,7,16,25,26,31 Responses in the questionnaire on satisfaction with the HiFi ER 20 hearing protector were concentrated in the "agree" and "fully agree" groups, indicating a positive attitude towards using hearing protectors.…”