title: Some characteristics of amplified music through hearing aids.
abstract: Hearing aids are a relatively non-invasive means of reducing the negative effects of hearing loss on an individual who does not require a cochlear implant. Music amplified through hearing aids has some interesting characteristics but high fidelity is not typically one of them. This poses a serious problem for the investigator who wants to perform research on music with hearing impaired individuals who wear hearing aids. If the signal at the tympanic membrane is somewhat distorted then this has consequences for the assessment of music processing when examining both the peripheral and the central auditory system. In this review article on the subject of hearing aids and music, some of the acoustical differences between speech and music will be described. Following this, a discussion about what hearing aids do well and also less well for music as an input will be presented. Finally, some recommendations are made about what can be done for hearing-impaired individuals who wear hearing aids to listen to music.
authors.affiliation: Musicians' Clinics of Canada, Toronto, Ontario, Canada. Electronic address: marshall.chasin@rogers.com.
authors.forename: Marshall
authors.initials: M
authors.lastname: Chasin
authors.affiliation: Bernafon AG, Bern, Switzerland.
authors.forename: Neil S
authors.initials: NS
authors.lastname: Hockley
mesh_terms: D000161:Acoustic Stimulation; D000162:Acoustics; D000703:Analog-Digital Conversion; D001307:Auditory Perception; D001309:Auditory Threshold; D012048:Correction of Hearing Impairment; D006309:Hearing / Q000502:physiology*; D006310:Hearing Aids; D006801:Humans; D009146:Music; D019986:Persons with Hearing Disabilities; D012984:Software; D013060:Speech; D014432:Tympanic Membrane / Q000502:physiology
keywords: A/D; AGC; ANSI; American National Standards Institute; Analog-to-Digital; Automatic Gain Control; Decibel; MPO; Maximum Power Output; OSPL90; Output Sound Pressure Level with a 90 dB SPL input; SPL; Sound Pressure Level; WDRC; Wide dynamic range compression; dB; millisecond; msec