Graeme Clark Collection

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Author: Blamey, Peter × Author: Seligman, Peter × Subject: Cochlear Proprietary Limited × Subject: cochlear implant × Subject: hearing aids ×

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    Formant-based processing for hearing aids
    Blamey, P. J. ; Dooley, G. J. ; Seligman, P. M. ; Alcantara, J. I. ; Gerin, E. S. ( 1994)
    A body-worn hearing aid has been developed with the ability to estimate formant frequencies and amplitudes in real time. These parameters can be used to enhance the output signal by "sharpening" the formant peaks, by "mapping" the amplitudes of the formants onto the available dynamic range of hearing at each frequency, or by resynthesizing a speech signal that is suited to the listener�s hearing characteristics. Initial evaluations have indicated small improvements in speech perception for three groups of subjects: users of a combined cochlear implant and speech processing hearing aid, normally hearing listeners in background noise, and a hearing aid user with a severe hearing loss.