A Two-Microphone Noise Reduction System for Cochlear Implant Users with Nearby Microphones—Part I: Signal Processing Algorithm Design and Development

Kompis, Martin; Bertram, Matthias; François, Jacques; Pelizzone, Marco

doi:10.1155/2008/647502

Scientific article

English

A Two-Microphone Noise Reduction System for Cochlear Implant Users with Nearby Microphones—Part I: Signal Processing Algorithm Design and Development

Contributors

Kompis, Martin; Bertram, Matthias; François, Jacques; Pelizzone, Marco

Published in

EURASIP Journal on Advances in Signal Processing, vol. 2008, no. 647502

Publication date

2008

Abstract

Users of cochlear implant systems, that is, of auditory aids which stimulate the auditory nerve at the cochlea electrically, often complain about poor speech understanding in noisy environments. Despite the proven advantages of multimicrophone directional noise reduction systems for conventional hearing aids, only one major manufacturer has so far implemented such a system in a product, presumably because of the added power consumption and size. We present a physically small (intermicrophone distance 7 mm) and computationally inexpensive adaptive noise reduction system suitable for behind-the-ear cochlear implant speech processors. Supporting algorithms, which allow the adjustment of the opening angle and the maximum noise suppression, are proposed and evaluated. A portable real-time device for test in real acoustic environments is presented.

UNIGE affiliation entities

Faculté de médecine / Section de médecine clinique / Département des neurosciences cliniques

UNIGE research groups

Citation (ISO format)

KOMPIS, Martin et al. A Two-Microphone Noise Reduction System for Cochlear Implant Users with Nearby Microphones—Part I: Signal Processing Algorithm Design and Development. In: EURASIP Journal on Advances in Signal Processing, 2008, vol. 2008, n° 647502. doi: 10.1155/2008/647502

Article (Published version)

Identifiers

PID : unige:2487
DOI : 10.1155/2008/647502

Journal ISSN

1687-6172

798views

691downloads

Creation

25/08/2009 16:20:00

First validation

25/08/2009 16:20:00

Update

14/03/2023 15:10:45

Status update

14/03/2023 15:10:45

Last indexation

29/10/2024 11:54:55

A Two-Microphone Noise Reduction System for Cochlear Implant Users with Nearby Microphones—Part I: Signal Processing Algorithm Design and Development

Contributors

Published in

Publication date

Abstract

UNIGE affiliation entities

UNIGE research groups

Citation (ISO format)

Main files (1)

Identifiers

Journal ISSN

Technical informations

Creation

First validation

Update

Status update

Last indexation