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Title: Psychophysics, fitting, and signal processing for combined hearing aid and cochlear implant stimulation
Authors: Francart, Tom
McDermott, Hugh
Keywords: Psychophysics
Cochlear Implant
Hearing Aid
Electrical Stimulation
Issue Date: Nov-2013
Publisher: Lippincott Williams & Wilkins
Citation: Francart, T. & McDermott, H.J. Psychophysics, fitting and signal processing for combined hearing aid and cochlear implant stimulation, Ear and Hearing 34(6), 685-700, 2013.
Abstract: The addition of acoustic stimulation to electric stimulation via a cochlear implant has been shown to be advantageous for speech perception in noise, sound quality, music perception, and sound source localization. However, the signal processing and fitting procedures of current cochlear implants and hearing aids were developed independently, precluding several potential advantages of bimodal stimulation, such as improved sound source localization and binaural unmasking of speech in noise. While there is a large and increasing population of implantees who use a hearing aid, there are currently no generally accepted fitting methods for this configuration. It is not practical to fit current commercial devices to achieve optimal binaural loudness balance or optimal binaural cue transmission for arbitrary signals and levels. There are several promising experimental signal processing systems specifically designed for bimodal stimulation. In this article, basic psychophysical studies with electric acoustic stimulation are reviewed, along with the current state of the art in fitting, and experimental signal processing techniques for electric acoustic stimulation.
URI: http://repository.bionicsinstitute.org:8080/handle/123456789/93
Appears in Collections:Bionic Hearing Research Publications

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