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http://dx.doi.org/10.6109/jkiice.2008.12.5.887

An Acoustic Feedback Canceller for Digital Hearing Aids Using Decorrelator  

Lee, Haeng-Woo (남서울대학교 정보통신공학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.12, no.5, 2008 , pp. 887-892 More about this Journal
Abstract
This paper is on a new adaptive algorithm which can cancel the acoustic feedback signals in the digital hearing aids. The proposed algorithm uses the normalized LMS algorithm with decorrelators. By doing so, it can be reduced the autocorrelation for the voice signals. To analyze the convergence characteristics of the proposed algorithm, the simulations were carried out about various input signals. And we had compared the performances of convergence for this algorithm with the ones for the NLMS algorithm. As the results of simulations, it is proved that the feedback canceller adopting this algorithm shows about 5-10 dB more high SNR than the NLMS algorithm for the colored inputs.
Keywords
보청기;궤환제거;상관도;적응 알고리즘;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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