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The influence of non-linear frequency compression on music perception for adults with a moderate to severe hearing loss
Thesis (DPhil)--University of Pretoria, 2012.
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University of Pretoria
2013
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| _version_ | 1867613718618046464 |
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| access_status_str | Open Access |
| author2 | Pottas, Lidia |
| author_browse | Pottas, Lidia |
| author_facet | Pottas, Lidia |
| collection | Thesis |
| dc_rights_str_mv | © 2011 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Thesis (DPhil)--University of Pretoria, 2012. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/28699 |
| institution | University of Pretoria (South Africa) |
| last_indexed | 2026-06-10T12:40:36.114Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/28699 The influence of non-linear frequency compression on music perception for adults with a moderate to severe hearing loss Pottas, Lidia Vinck, Bart M. marinda.uys@gmail.com Uys, Marinda Hearing aids Hearing loss Music perception Non-linear frequency compression Frequency lowering Sensory neural hearing loss Cochlear dead regions Music enjoyment Evidence-based practice South african context UCTD Thesis (DPhil)--University of Pretoria, 2012. Objective: To date, the main focus in frequency lowering hearing aid studies has been in relation to speech perception abilities. With improvements in hearing aid technology, there is a growing interest in musical perception as a dimension that could improve hearing aid users’ quality of life. The purpose of this study was two-fold: Firstly, to develop a test of music perception for adult hearing aid users and secondly, to evaluate the influence of non-linear frequency compression (NFC) on music perception with the use of the Music Perception Test (MPT) compiled by the researcher. Research design and research sample: Phase 1 entailed the compilation of the MPT and can be described as design-based. A quasi-experimental research design was selected to establish the structure of the method employed in Phase 2, which involved the fitting of participants (n=40) with NFC hearing aids. Objective data was obtained with the hearing aids with NFC active and inactive. Phase 3 was characterized by a survey design which elicited subjective impressions of the participants’ musical experiences with NFC active and inactive. Results: Results proved that normal hearing adults as well as adults using hearing aids were able to complete all the sub-tests of the MPT. Furthermore, the use of NFC resulted in a statistically significant improvement in hearing aid users’ perception of timbre and melody, but not of pitch. Overall, no statistically significant improvement in their perception of rhythm was observed, although their performance on some rhythm sub-tests improved significantly. The use of NFC also brought about a statistically significant improvement in hearing aid users’ perception of the music qualities of overall fidelity, tinniness and reverberance. Although participants experienced the loudness, fullness, crispness, naturalness and pleasantness of music more positively with NFC, these benefits were not statistically significant. Conclusion: The MPT can be used successfully for assessing music perception in hearing aid users within the South African context and may therefore result in more accountable hearing aid fittings. The use of NFC may increase hearing aid users’ appreciation of music whilst not influencing music perception negatively. Given that a large percentage of hearing aid users express a loss in enjoyment of music, audiologists should not ignore the possible benefits of NFC, especially if one takes into account that previous research indicated speech perception benefits with this technology. Speech-Language Pathology and Audiology Unrestricted 2013-09-07T14:06:03Z 2012-10-15 2013-09-07T14:06:03Z 2012-09-06 2012-10-15 2012-10-13 Thesis Uys, M 2011, The influence of non-linear frequency compression on music perception for adults with a moderate to severe hearing loss, DPhil thesis, University of Pretoria, Pretoria, viewed yymmdd < http://hdl.handle.net/2263/28699 > D12/9/307/ag http://hdl.handle.net/2263/28699 http://upetd.up.ac.za/thesis/available/etd-10132012-123616/ © 2011 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf University of Pretoria |
| spellingShingle | Hearing aids Hearing loss Music perception Non-linear frequency compression Frequency lowering Sensory neural hearing loss Cochlear dead regions Music enjoyment Evidence-based practice South african context UCTD The influence of non-linear frequency compression on music perception for adults with a moderate to severe hearing loss |
| title | The influence of non-linear frequency compression on music perception for adults with a moderate to severe hearing loss |
| title_full | The influence of non-linear frequency compression on music perception for adults with a moderate to severe hearing loss |
| title_fullStr | The influence of non-linear frequency compression on music perception for adults with a moderate to severe hearing loss |
| title_full_unstemmed | The influence of non-linear frequency compression on music perception for adults with a moderate to severe hearing loss |
| title_short | The influence of non-linear frequency compression on music perception for adults with a moderate to severe hearing loss |
| title_sort | influence of non linear frequency compression on music perception for adults with a moderate to severe hearing loss |
| topic | Hearing aids Hearing loss Music perception Non-linear frequency compression Frequency lowering Sensory neural hearing loss Cochlear dead regions Music enjoyment Evidence-based practice South african context UCTD |
| url | http://hdl.handle.net/2263/28699 http://upetd.up.ac.za/thesis/available/etd-10132012-123616/ |