An efficient feedback canceler for hearing aids based on approximated affine projection
- Authors
- Lee, Sangmin; Kim, Inyoung; Park, Youngcheol
- Issue Date
- Aug-2006
- Publisher
- SPRINGER-VERLAG BERLIN
- Citation
- COMPUTATIONAL INTELLIGENCE AND BIOINFORMATICS, PT 3, PROCEEDINGS, v.4115, pp.711 - 720
- Indexed
- SCIE
SCOPUS
- Journal Title
- COMPUTATIONAL INTELLIGENCE AND BIOINFORMATICS, PT 3, PROCEEDINGS
- Volume
- 4115
- Start Page
- 711
- End Page
- 720
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/181197
- DOI
- 10.1007/11816102_75
- ISSN
- 0302-9743
- Abstract
- In the feedback cancelation systems in hearing aids, signal cancelation and coloration artifacts can occur for a narrow-band input. In this paper, we propose a new adaptive feedback cancelation algorithm that can achieve fast convergence by approximating the affine projection (AP) algorithm and prevent signal cancelation by controlling the step-size. A Gram-Schmidt prediction error filter (GS-PEF) is used for a stable approximation of the AP algorithm, and the step-size is varied using the prediction factor of the input signal. Simulations results are presented to verify efficiency of the proposed algorithm.
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