Auditory-model based assessment of the effects of hearing loss and hearing-aid compression on spectral and temporal resolution

Borys Kowalewski, Ewen MacDonald, Olaf Strelcyk, Torsten Dau

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Most state-of-the-art hearing aids apply multi-channel dynamic-range compression (DRC). Such designs have the potential to emulate, at least to some degree, the processing that takes place in the healthy auditory system. One way to assess hearing-aid performance is to measure speech intelligibility. However, due to the complexity of speech and its robustness to spectral and temporal alterations, the effects of DRC on speech perception have been mixed and controversial. The goal of the present study was to obtain a clearer understanding of the interplay between hearing loss and DRC by means of auditory modeling. Inspired by the work of Edwards (2002), we studied the effects of DRC on a set of relatively basic outcome measures, such as forward masking functions (Glasberg and Moore, 1987)
and spectral masking patterns (Moore et al., 1998), obtained at several masker levels and frequencies. Outcomes were simulated using the auditory processing model of Jepsen et al. (2008) with the front end modified to include effects of hearing impairment and DRC. The results were compared to experimental data from normal-hearing and hearing-impaired listeners.
Original languageEnglish
Title of host publicationProceedings of ISAAR 2015
EditorsS. Santurette, T. Dau, J. C. Dalsgaard, L. Tranebjærg, T. Andersen
Number of pages8
Publication date2016
ISBN (Print)978-87-990013-5-4
Publication statusPublished - 2016
Event5th International Symposium on Auditory and Audiological Research - Nyborg, Denmark
Duration: 26 Aug 201528 Aug 2015
Conference number: 5
http://www.isaar.eu/

Conference

Conference5th International Symposium on Auditory and Audiological Research
Number5
CountryDenmark
CityNyborg
Period26/08/201528/08/2015
Internet address

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