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Application of Psychoacoustics in Hearing Aid Development

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Psychoacoustical knowledge is important at different stages of hearing aid development. The goal of modern hearing instruments is the compensation of individual hearing deficits. For reaching this goal, signal processing algorithms have to be developed and fitting strategies have to be applied for each individual hearing-impaired listener. The most important psychoacoustical parameters which have to be taken into account in signal processing algorithms are loudness perception as well as time and frequency selectivity. For fitting hearing aids, the pure-tone audiogram and sometimes loudness scaling results are used. The benefit of hearing instruments can be examined by speech intelligibility and quality tests which also give hints for future developments. The cooperation between industry and university partners is important in all stages of hearing aid development since the capacity for algorithms is dramatically increasing by digitizing the signal processing.
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Document Type: Research Article

Publication date: 01 September 1999

More about this publication?
  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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