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Relationship between distortion and working memory for digital noise-reduction processing in hearing aids
University of Colorado, UCB 409, Boulder, Departmen of Speech , Language and Hearing Sciences.
Northwestern University, Roxelyn and Richard Pepper Department of Communication Sciences and Disorders, United States.
Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutet för handikappvetenskap (IHV). Eriksholm Research Centre, Snekkersten, Denmark. (Linnaeus Centre HEAD)
Oticon.
Vise andre og tillknytning
2014 (engelsk)Inngår i: Journal of the Acoustical Society of America, ISSN 0001-4966, Vol. 133, nr 5Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Several recent studies have shown a relationship between working memory and the ability of older adults to benefit from specific advanced signal processing algorithms in hearing aids. In this study, we quantify tradeoffs between benefit due to noise reduction and the perceptual costs associated with distortion caused by the noise reduction algorithm. We also investigate the relationship between these tradeoffs and working memory abilities. Speech intelligibility, speech quality, and perceived listening effort were measured in a cohort of elderly adults with hearing loss. Test materials were low-context sentences presented in fluctuating noise conditions at several signal-to-noise ratios. Speech stimuli were processed with a binary mask noise-reduction strategy. The amount of distortion produced by the noise reduction algorithm was parametrically varied by manipulating two binary mask parameters, error rate, and attenuation rate. Working memory was assessed with a reading span test. Results will be discussed in terms of the extent to which intelligibility, quality, and effort ratings are explained by the amount of distortion and/or noise and by working memory ability. [Funded by NIH, Oticon, and GN ReSound.].

sted, utgiver, år, opplag, sider
2014. Vol. 133, nr 5
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-114634DOI: 10.1121/1.4805834OAI: oai:DiVA.org:liu-114634DiVA, id: diva2:791647
Tilgjengelig fra: 2015-03-02 Laget: 2015-03-02 Sist oppdatert: 2015-03-13

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