scholarly journals Effects of directional microphone and adaptive multichannel noise reduction algorithm on cochlear implant performance

2006 ◽  
Vol 120 (4) ◽  
pp. 2216-2227 ◽  
Author(s):  
King Chung ◽  
Fan-Gang Zeng ◽  
Kyle N. Acker
Keyword(s):  
Cochlear Implant ◽  
Noise Reduction ◽  
Reduction Algorithm ◽  
Directional Microphone ◽  
Noise Reduction Algorithm

Impact of Noise Reduction Algorithm in Cochlear Implant Processing on Music Enjoyment

2016 ◽  
Vol 37 (5) ◽  
pp. 492-498 ◽  
Author(s):  
Gavriel D. Kohlberg ◽  
Dean M. Mancuso ◽  
Brianna M. Griffin ◽  
Jaclyn B. Spitzer ◽  
Anil K. Lalwani
Keyword(s):  
Cochlear Implant ◽  
Noise Reduction ◽  
Reduction Algorithm ◽  
Noise Reduction Algorithm

scholarly journals Evaluation of a transient noise reduction algorithm in cochlear implant users

2015 ◽  
Vol 5 (2) ◽  
Author(s):  
Karl-Heinz Dyballa ◽  
Phillipp Hehrmann ◽  
Volkmar Hamacher ◽  
Waldo Nogueira ◽  
Thomas Lenarz ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Noise Reduction ◽  
Reduction Algorithm ◽  
Subjective Ratings ◽  
Speech Reception ◽  
Age Range ◽  
Speech Clarity ◽  
Noise Reduction Algorithm

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.

Subjective and Objective Evaluation of Noise Management Algorithms

2009 ◽  
Vol 20 (02) ◽  
pp. 089-098 ◽  
Author(s):  
Heidi Peeters ◽  
Francis Kuk ◽  
Chi-chuen Lau ◽  
Denise Keenan
Keyword(s):  
Noise Reduction ◽  
Speech Intelligibility ◽  
Objective Evaluation ◽  
Reduction Algorithm ◽  
Speech In Noise ◽  
Directional Microphone ◽  
Hearing In Noise ◽  
Listening Environments ◽  
Speech Intelligibility Index ◽  
Noise Reduction Algorithm

Purpose: To measure the subjective and objective improvement of speech intelligibility in noise offered by a commercial hearing aid that uses a fully adaptive directional microphone and a noise reduction algorithm that optimizes the Speech Intelligibility Index (SII). Research Design: Comparison of results on the Hearing in Noise Test (HINT) and the Acceptable Noise Level task (ANL). Study Sample: Eighteen participants with varying configurations of sensorineural hearing loss. Results: Both the directional microphone and the noise reduction algorithm improved the speech-in-noise performance of the participants. The benefits reported were higher for the directional microphone than the noise reduction algorithm. A moderate correlation was noted between the benefits measured on the HINT and the ANL for the directional microphone condition, the noise reduction condition, and the directional microphone plus noise reduction conditions. Conclusions: These results suggest that the directional microphone and the SII-based noise reduction algorithm may improve the SNR of the listening environments, and both the HINT and the ANL may be used to study their benefits.

scholarly journals Personalizing Transient Noise Reduction Algorithm Settings for Cochlear Implant Users

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
H. Christiaan Stronks ◽  
Annemijn L. Tops ◽  
Phillipp Hehrmann ◽  
Jeroen J. Briaire ◽  
Johan H. M. Frijns
Keyword(s):  
Cochlear Implant ◽  
Noise Reduction ◽  
Reduction Algorithm ◽  
Noise Reduction Algorithm
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