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Audiology Research
Volume 6
Issue 2
10.4081/audiores.2016.154
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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

Transient Noise Reduction in Cochlear Implant Users: A Multi-Band Approach

by
Karl-Heinz Dyballa
1,*,
Phillipp Hehrmann
2,
Volkmar Hamacher
2,
Thomas Lenarz
1 and
Andreas Buechner
1
Department of Otolaryngology, Hannover Medical School, Hannover, Germany
2
Advanced Bionics GmbH, Hannover, Germany
*
Author to whom correspondence should be addressed.
Audiol. Res. 2016, 6(2), 154; https://doi.org/10.4081/audiores.2016.154
Submission received: 28 April 2016 / Revised: 29 June 2016 / Accepted: 16 July 2016 / Published: 23 August 2016

Abstract

A previously-tested transient noise reduction (TNR) algorithm for cochlear implant (CI) users was modified to detect and attenuate transients independently across multiple frequency-bands. Since speech and transient noise are often spectrally distinct, we hypothesized that benefits in speech intelligibility can be achieved over the earlier single- band design. Fifteen experienced CI users (49 to 72 years) were tested unilaterally using pre-processed stimuli delivered directly to a speech processor. Speech intelligibility in transient and soft stationary noise, subjective sound quality and the recognition of warning signals was investigated in three processing conditions: no TNR (TNRoff), single- band TNR (TNRsgl) and multi-band TNR (TNRmult). Notably, TNRmult improved speech reception thresholds (SRTs) in cafeteria noise and office noise by up to 3 dB over both TNRoff and TNRsgl, and yielded higher comfort and clarity ratings in cafeteria noise. Our results indicate that multi-band transient noise reduction may be advantageous compared to a single-band approach, and reveal a substantial overall potential for TNR to improve speech perception and listening comfort in CI users.
Keywords: Cochlear implant; noise reduction; transient; speech intelligibility; comfort Cochlear implant; noise reduction; transient; speech intelligibility; comfort

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MDPI and ACS Style

Dyballa, K.-H.; Hehrmann, P.; Hamacher, V.; Lenarz, T.; Buechner, A. Transient Noise Reduction in Cochlear Implant Users: A Multi-Band Approach. Audiol. Res. 2016, 6, 154. https://doi.org/10.4081/audiores.2016.154

AMA Style

Dyballa K-H, Hehrmann P, Hamacher V, Lenarz T, Buechner A. Transient Noise Reduction in Cochlear Implant Users: A Multi-Band Approach. Audiology Research. 2016; 6(2):154. https://doi.org/10.4081/audiores.2016.154

Chicago/Turabian Style

Dyballa, Karl-Heinz, Phillipp Hehrmann, Volkmar Hamacher, Thomas Lenarz, and Andreas Buechner. 2016. "Transient Noise Reduction in Cochlear Implant Users: A Multi-Band Approach" Audiology Research 6, no. 2: 154. https://doi.org/10.4081/audiores.2016.154

APA Style

Dyballa, K. -H., Hehrmann, P., Hamacher, V., Lenarz, T., & Buechner, A. (2016). Transient Noise Reduction in Cochlear Implant Users: A Multi-Band Approach. Audiology Research, 6(2), 154. https://doi.org/10.4081/audiores.2016.154

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