eHealth 360°. International Summit on eHealth, Budapest, Hungary, June 14-16, 2016, Revised Selected Papers

Research Article

APT: Enhanced Speech Comprehension Through Adaptive Pitch Transposition in Cochlear Implants

Download
252 downloads
  • @INPROCEEDINGS{10.1007/978-3-319-49655-9_30,
        author={Kevin Struwe},
        title={APT: Enhanced Speech Comprehension Through Adaptive Pitch Transposition in Cochlear Implants},
        proceedings={eHealth 360°. International Summit on eHealth, Budapest, Hungary, June 14-16, 2016, Revised Selected Papers},
        proceedings_a={EHEALTH360},
        year={2017},
        month={1},
        keywords={Cochlear Implants Pitch transposition Speech processing},
        doi={10.1007/978-3-319-49655-9_30}
    }
    
  • Kevin Struwe
    Year: 2017
    APT: Enhanced Speech Comprehension Through Adaptive Pitch Transposition in Cochlear Implants
    EHEALTH360
    Springer
    DOI: 10.1007/978-3-319-49655-9_30
Kevin Struwe1,*
  • 1: University of Rostock
*Contact email: kevin.struwe@uni-rostock.de

Abstract

Cochlear Implants are a marvelous option for hearing-impaired patients to perceive sound again, yet some people still cannot benefit from their implant. The resulting problem is a suboptimal pitch discrimination, which in turn is a vital factor for vowel identification. As an approach to solve this problem, this paper proposes an adaptive pitch transposition, which transposes a given signal to a fixed pitch in which the implant patient has the best comprehension. This pitch is called comfort pitch and has to be determined in a patient test. As a result of these considerations, APT was prototypically implemented in Octave/Matlab and serves as an evaluation platform for the quality of the produced signals. Furthermore, the comfort pitch is a new measure to tune the performance of a cochlear implant patient. The entire concept can be used as a preprocessing stage for state-of-the art speech processing algorithms in cochlear implants.