Canadian Journal of Speech-Language Pathology and Audiology

Design Criteria for New Technologies

Author(s) A. Maynard Engebretson
Volume 17
Number 4
Year 1993
Page(s) 74-86
Language English
Keywords hearing
Abstract In this paper we attempt to identify areas of current hearing aid design that limit performance and that can be improved by applying new technology. First, we will examine hearing aid components, such as microphones, receivers, and batteries. Next, we will address the limits of miniaturization of traditional CMOS technology and discuss the relative merits and problems of analog and digital implementation. Then, we will examine the problems of digital encoding. We will review a number of potentially useful signal processing algorithms related to filtering, feedback stabilization, and noise reduction. Finally, we will compare an analog and digital implementation of a typical hearing aid circuit.

Dans le présent document, nous tentons d'identifier les paramètres d'un modèle conceptuel qui limitent le rendement des aides auditives
et qui peuvent être améliorés en utilisant une technologie nouvelle. Nous examinons tout d'abord les composantes de la prothèse auditive, comme les microphones, les récepteurs et les piles. Puis, nous parlons des limites de la miniaturisation de la technologie traditionnelle CMOS avant de discuter des avantages et des problèmes reliés aux systèmes analogiques et digitaux. Nous examinons les problèmes de l'encodage digital. Nous nous penchons sur un certain nombre d'algorithmes de traitement de signal pour les aides auditives qui peuvent être utiles pour la filtration, le coulage acoustique et la réduction du bruit. Enfin, nous comparons le comportement électroacoustique d'une aide auditive révélé à l'expertise analogique et digitale.
Record ID 329
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