Graeme Clark Collection

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    Architecture of the Spectra 22 speech processor
    Seligman, P. ; MCDERMOTT, H. ( 1995)
    The Spectra 22 is a logical extension in the development of the speech processing for the Cochlear Mini 22 system. It can implement the new coding strategy (Speak) that has provided significant improvement in patient benefit.
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    Combined electrical and acoustical stimulation using a bimodal prosthesis
    Dooley, Gary J. ; Blamey, Peter J. ; Seligman, Peter M. ; Alcantara, Joseph I. ; Clark, Graeme M. ; Shallop, Jon K. ; Arndt, Patti ; Heller, James W. ; Menapace, Christine M. ( 1993)
    A new device incorporating a cochlear implant speech processor and a speech-processing hearing aid for the un-implanted ear has been designed and tested with four severely hearing-impaired patients. The aim of the device is to provide a more acceptable and effective combination of electrical and acoustic signals to the two ears. When used monaurally, and binaurally in conjunction with the cochlear implant, the speech-processing hearing aid mean scores for open-set sentences, words, and consonants were as good as or better than the mean scores for the patients' own conventional hearing aids. Some patients improved much more than did others. Although not conclusive, these results are encouraging, especially as they were achieved with a laboratory prototype that did not allow the patients to become accustomed to the processor in everyday situations.