Document Detail


Short-term auditory effects of listening to an MP3 player.
MedLine Citation:
PMID:  20566903     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVES: To determine the output levels of a commercially available MPEG layer-3 (MP3) player and to evaluate changes in hearing after 1 hour of listening to the MP3 player.
DESIGN: First, A-weighted sound pressure levels (measured in decibels [dBA]) for 1 hour of pop-rock music on an MP3 player were measured on a head and torso simulator. Second, after participants listened to 1 hour of pop-rock music using an MP3 player, changes in hearing were evaluated with pure-tone audiometry, transient-evoked otoacoustic emissions, and distortion product otoacoustic emissions.
PARTICIPANTS: Twenty-one participants were exposed to pop-rock music in 6 different sessions using 2 types of headphones at multiple preset gain settings of the MP3 player.
MAIN OUTCOME MEASURES: Output levels of an MP3 player and temporary threshold and emission shifts after 1 hour of listening.
RESULTS: The output levels at the full gain setting were 97.36 dBA and 102.56 dBA for the supra-aural headphones and stock earbuds, respectively. In the noise exposure group, significant changes in hearing thresholds and transient-evoked otoacoustic emission amplitudes were found between preexposure and postexposure measurements. However, this pattern was not seen for distortion product otoacoustic emission amplitudes. Significant differences in the incidence of significant threshold or emission shifts were observed between almost every session of the noise exposure group compared with the control group.
CONCLUSIONS: Temporary changes in hearing sensitivity measured by audiometry and otoacoustic emissions indicate the potential harmful effects of listening to an MP3 player. Further research is needed to evaluate the long-term risk of cumulative noise exposure on the auditory system of adolescents and adults.
Authors:
Hannah Keppler; Ingeborg Dhooge; Leen Maes; Wendy D'haenens; Annelies Bockstael; Birgit Philips; Freya Swinnen; Bart Vinck
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Archives of otolaryngology--head & neck surgery     Volume:  136     ISSN:  1538-361X     ISO Abbreviation:  Arch. Otolaryngol. Head Neck Surg.     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-06-22     Completed Date:  2010-07-12     Revised Date:  2011-01-05    
Medline Journal Info:
Nlm Unique ID:  8603209     Medline TA:  Arch Otolaryngol Head Neck Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  538-48     Citation Subset:  AIM; IM    
Affiliation:
Ear, Nose, and Throat Department, Faculty of Medicine and Health Sciences, Ghent University, De Pintelaan 185, 9000 Ghent, Belgium. hannah.keppler@ugent.be
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Audiometry, Pure-Tone
Auditory Threshold / physiology
Evoked Potentials, Auditory
Female
Hearing / physiology*
Humans
Individuality
MP3-Player*
Male
Music*
Comments/Corrections
Comment In:
Arch Otolaryngol Head Neck Surg. 2010 Dec;136(12):1280; author reply 1280   [PMID:  21173380 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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