Adjustment of appropriate signal levels in the Spectra 22 and Mini Speech processors

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    Author
    Seligman, P.; Whitford, L.
    Date
    1995
    Source Title
    Annals of Otology, Rhinology & Laryngology
    University of Melbourne Author/s
    Seligman, Peter
    Metadata
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    Document Type
    Journal Article
    Citations
    Seligman, P., & Whitford, L. (1995). Adjustment of appropriate signal levels in the Spectra 22 and Mini Speech processors. Annals of Otology, Rhinology & Laryngology, 104(suppl.166), 172-175.
    Access Status
    Open Access
    URI
    http://hdl.handle.net/11343/27465
    Description

    This is a publisher’s version of an article published in Annals of Otology, Rhinology & Laryngology published by Annals Publishing Company. This version is reproduced with permission from Annals Publishing Company. http://www.annals.com/
    Abstract
    The Spectra 22 speech processor has been described (Seligman and McDermott, this suppl, section 6). Figure 1 shows the audio signal path and means of mapping loudness in this processor and its predecessor, the Cochlear Pty Limited Mini Speech Processor (MSP). In both processors, following the microphone and preamplification, the signal level is adjusted by a sensitivity control. This control is the equivalent of the input gain of a hearing aid and is quite distinct from a loudness or maximum output level control. As will be explained later in this paper, the setting of the control is crucial to the effective functioning of the speech processor.
    Keywords
    signal levels; speech processors; sensitivity control; hearing aid

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