Risk for Noise-Induced Hearing Loss From Use of Portable Media Players: A Summary of Evidence Through 2008 Abstract: Abstract  A growing body of evidence suggests that a small, but significant, percent of users of portable media players (PMP) are at risk for noise-induced hearing loss (NIHL) from ... Article
Article  |   May 2009
Risk for Noise-Induced Hearing Loss From Use of Portable Media Players: A Summary of Evidence Through 2008
Author Affiliations & Notes
  • Brian J. Fligor
    Diagnostic Audiology, Children’s Hospital Boston, Otology and Laryngology, Harvard Medical SchoolBoston, MA
  • © 2009 American Speech-Language-Hearing AssociationAmerican Speech-Language-Hearing Association
Article Information
Hearing Disorders
Article   |   May 2009
Risk for Noise-Induced Hearing Loss From Use of Portable Media Players: A Summary of Evidence Through 2008
Perspectives on Audiology, May 2009, Vol. 5, 10-20. doi:10.1044/poa5.1.10
Perspectives on Audiology, May 2009, Vol. 5, 10-20. doi:10.1044/poa5.1.10
Abstract:

Abstract  A growing body of evidence suggests that a small, but significant, percent of users of portable media players (PMP) are at risk for noise-induced hearing loss (NIHL) from abusive use. This manuscript provides a brief review of damage-risk criteria and the methodological hurdles to accurately measuring sound exposure from earphones. The capacity of all generations of PMP exists to produce sound levels that would allow a user to exceed established damage-risk criteria. Whether or not a PMP user exceeds damage-risk criteria depends in part on the type of earphone used and the background noise that exists in the ambient listening environment. To date, estimates of noise dose from PMP use suggest that only a fraction of consumers are at risk for NIHL, but, given the extraordinary population of these devices, the absolute number affected may be quite large. Estimates of noise-induced permanent threshold shift from using PMP at high levels for 2 and 4 hours per day over a 10-year period are given, as well as an estimate of the number of people who may have NIHL from PMP use.

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