alexa Long-Term Effects of Non-Linear Frequency Compression o
ISSN: 2375-4427

Journal of Communication Disorders, Deaf Studies & Hearing Aids
Open Access

OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Research Article

Long-Term Effects of Non-Linear Frequency Compression on Performance of Music and Speech Perception

Marinda Uys1* and Matthias Latzel2

1Ear Institute, Pretoria, South Africa

2Phonak AG, Stäfa, Switzerland

*Corresponding Author:
Marinda Uys
Ear Institute, Pretoria
South Africa
Tel: +27 12 333 3130
E-mail: [email protected]

Received date: June 23, 2015 Accepted date: July 04, 2015 Published date: July 13, 2015

Citation: Uys M, Latzel M (2015) Long-Term Effects of Non-Linear Frequency Compression on Performance of Music and Speech Perception. Commun Disord Deaf Stud Hearing Aids 3:139. doi:10.4172/2375-4427.1000139

Copyright: © 2015 Uys M, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.




Objective: Previous studies have already documented improved speech intelligibility and music performance with the use of Nonlinear Frequency Compression (NFC) but as it is widely acknowledged that hearing aid users may gain increasing benefit with longer experience it is interesting to look into long-term effects of this technology. Speech perception benefit with extended use of NFC has been reported for children and cochlear implantees showed a significant improvement in melody recognition after extended use. Aim: The purpose of this study was to determine the long term effect on the perception of music with NFC in adult hearing aid users and whether speech intelligibility in noise changed with extended use of NFC. Design and Sample: As real-life use and experience of NFC hearing aids is necessary to reveal its true potential, the study described in this article was performed roughly three years after the initial study to address any long-term aspects and therefore a comparitive research design was implemented. A subgroup of the participants (n=9) of the study described in Uys, Pottas, Vinck and Van Dijk was recruited to check for their music performance and speech intelligibility after 3 years’ experience with NFC. Results and Conclusion: The results confirm the general observation of increased benefit from the hearing devices when making use of the high-frequency cues provided by NFC. Whereas the majority of parameters describing the subjective perception did not change, those parameters relating to the performance - especially melody identification and speech understanding in noise - did improve over the longer period. This leads to the conclusion that it is prudent to intensify the evaluation into the long-term effects of NFC technology.

Share This Page

Additional Info

Loading Please wait..
Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version