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Audiology Research
Volume 5
Issue 2
10.4081/audiores.2015.116
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Audiology Research is published by MDPI from Volume 10 Issue 2 (2020). Previous articles were published by another publisher in Open Access under a CC-BY (or CC-BY-NC-ND) licence, and they are hosted by MDPI on mdpi.com as a courtesy and upon agreement with PAGEPress.
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Article

Evaluation of A Transient Noise Reduction Algorithm in Cochlear Implant Users

by
Karl-Heinz Dyballa
1,*,
Phillipp Hehrmann
2,
Volkmar Hamacher
2,
Waldo Nogueira
1,
Thomas Lenarz
1 and
Andreas Büchner
1
1
Department of Otolaryngology, Hannover Medical School and Cluster of Excellence Hearing4all, Hannover, Germany
2
European Research Center Advanced Bionics, Hannover, Germany
*
Author to whom correspondence should be addressed.
Audiol. Res. 2015, 5(2), 116; https://doi.org/10.4081/audiores.2015.116
Submission received: 31 July 2014 / Revised: 27 March 2015 / Accepted: 19 April 2015 / Published: 11 June 2015

Abstract

Dealing with environmental noises presents a major issue for cochlear implant (CI) users. Hence, digital noise reduction (DNR) schemes have become important features of CI systems. Many noises like for example clinking glasses or slamming doors, have impulsive onsets and decay quickly. Common DNR algorithms cannot handle this type of noise in an appropriate way. In this study, we investigated the effect of an algorithm specially designed for such noises with 12 CI users (age range: 45 to 75 years). Speech scores in noise and quiet as well as subjective ratings of speech clarity, comfort and overall preference were measured. The main finding was a significant improvement of up to 1.7 dB of the speech reception threshold in noise as well as increased speech clarity. Speech in quiet was not negatively affected by the algorithm. The study revealed that the tested algorithm has the potential to improve CI listening. However, further research is needed regarding the effectiveness and suitability of the algorithm in daily use.
Keywords: transient; impulsive noise; noise reduction; cochlear implant; speech intelligibility transient; impulsive noise; noise reduction; cochlear implant; speech intelligibility

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MDPI and ACS Style

Dyballa, K.-H.; Hehrmann, P.; Hamacher, V.; Nogueira, W.; Lenarz, T.; Büchner, A. Evaluation of A Transient Noise Reduction Algorithm in Cochlear Implant Users. Audiol. Res. 2015, 5, 116. https://doi.org/10.4081/audiores.2015.116

AMA Style

Dyballa K-H, Hehrmann P, Hamacher V, Nogueira W, Lenarz T, Büchner A. Evaluation of A Transient Noise Reduction Algorithm in Cochlear Implant Users. Audiology Research. 2015; 5(2):116. https://doi.org/10.4081/audiores.2015.116

Chicago/Turabian Style

Dyballa, Karl-Heinz, Phillipp Hehrmann, Volkmar Hamacher, Waldo Nogueira, Thomas Lenarz, and Andreas Büchner. 2015. "Evaluation of A Transient Noise Reduction Algorithm in Cochlear Implant Users" Audiology Research 5, no. 2: 116. https://doi.org/10.4081/audiores.2015.116

APA Style

Dyballa, K. -H., Hehrmann, P., Hamacher, V., Nogueira, W., Lenarz, T., & Büchner, A. (2015). Evaluation of A Transient Noise Reduction Algorithm in Cochlear Implant Users. Audiology Research, 5(2), 116. https://doi.org/10.4081/audiores.2015.116

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