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 (2008). A two-microphone noise reduction system for cochlear implant users with nearby microphones. Part I: Signal processing algorithm design and development. EURASIP journal on advances in signal processing, 2008(1), p. 647502. New York, N.Y.: Hindawi Pub. Corp. 10.1155/2008/647502

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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.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Ear, Nose and Throat Disorders (ENT)

UniBE Contributor:

Kompis, Martin

ISSN:

1687-6172

Publisher:

Hindawi Pub. Corp.

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 15:04

Last Modified:

08 Jun 2016 10:46

Publisher DOI:

10.1155/2008/647502

Web of Science ID:

000258066500001

BORIS DOI:

10.7892/boris.27746

URI:

https://boris.unibe.ch/id/eprint/27746 (FactScience: 110687)

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