Inter-aural attenuation with insert earphones

Kevin J. Munro, Alia Contractor

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The aim of the present study was to determine inter-aural attenuation (IA) values for pure tones and a broadband click obtained using an ER-3A insert earphone with a foam plug and with a customized hard acrylic earmould. Participants were 15 adults with a longstanding unilateral dead ear. IA was operationally defined as the difference between the good-ear and poorer-ear not-masked air conduction threshold. Minimum IA values for the foam earplug were 50 dB and 55 dB for pure tones and broadband click, respectively. Minimum IA values for the hard acrylic earmould were 45 dB and 50 dB for pure tones and broadband click, respectively. Sumario El objetivo de este estudio fue determinar los valores de IA para tonos puros y para un clic de banda ancha utilizando los audfonos de insercin ER-3A con oclusin de esponja y con un molde de acrlico duro a la medida. Participaron 15 adultos con un odo muerto unilateral de larga evolucin. Desde el punto de vista operacional se defini IA como la diferencia de umbral por conduccin aérea sin enmascarar, entre el odo sano y el daado. Los valores mnimos de IA con el tapn de esponja fue de 50dB y 55dB para los tonos puros y para el clic de banda ancha respectivamente. Los valores IA mnimos con el molde de acrlico duro fueron de 45dB y 50dB para tonos y clic de banda ancha respectivamente. © 2010 British Society of Audiology, International Society of Audiology, and Nordic Audiological Society.
    Original languageEnglish
    Pages (from-to)799-801
    Number of pages2
    JournalInternational Journal of Audiology
    Volume49
    Issue number10
    DOIs
    Publication statusPublished - Oct 2010

    Keywords

    • Insert earphone
    • Inter-aural attenuation

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