Evaluation of a Transient Noise Reduction Algorithm in Cochlear Implant Users

Audiology Research
Karl-Heinz DyballaAndreas Büchner

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.

References

Aug 1, 1986·The Journal of the Acoustical Society of America·D Henderson, R P Hamernik
Jan 29, 2008·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Martina BrendelThomas Lenarz
Apr 14, 2009·International Journal of Audiology·Patrick J BoyleBrian C J Moore
Sep 22, 2010·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Andreas BuechnerThomas Lenarz
Sep 24, 2011·American Journal of Audiology·Jeffrey J DiGiovanniNaveen K Nagaraj
Sep 13, 2012·Journal of the American Academy of Audiology·HaiHong LiuLuo Zhang
Nov 15, 2013·Journal of the American Academy of Audiology·Petri KorhonenJakob Nielsen

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Citations

May 17, 2018·International Journal of Audiology·Mahmoud KeshavarziBrian C J Moore
Feb 15, 2019·Cochlear Implants International·Arneborg ErnstRolf-Dieter Battmer
Dec 13, 2016·Audiology Research·Karl-Heinz DyballaAndreas Buechner
May 12, 2021·Ear and Hearing·H Christiaan StronksJohan H M Frijns

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Methods Mentioned

BETA
cochlear implant

Software Mentioned

ClearVoice

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