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    Affine projection algorithm for acoustic feedback cancellation using prediction error method in hearing aids

    Access Status
    Fulltext not available
    Authors
    Tran, Linh T.T.
    Dam, Hai Huyen Heidi
    Nordholm, Sven
    Date
    2016
    Type
    Conference Paper
    
    Metadata
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    Citation
    Tran, L. and Dam, H.H.H. and Nordholm, S. 2016. Affine projection algorithm for acoustic feedback cancellation using prediction error method in hearing aids, 15th International Workshop on Acoustic Signal Enhancement (IWAENC), 13-16 Sept. 2016: IEEE.
    Source Title
    2016 International Workshop on Acoustic Signal Enhancement (IWAENC)
    Source Conference
    15th International Workshop on Acoustic Signal Enhancement (IWAENC)
    DOI
    10.1109/IWAENC.2016.7602885
    ISBN
    9781509020072
    School
    Department of Mathematics and Statistics
    URI
    http://hdl.handle.net/20.500.11937/50643
    Collection
    • Curtin Research Publications
    Abstract

    Prediction error method (PEM) is popularly applied to acoustic feedback cancellation (AFC) in hearing aids. Commonly, this method uses normalized least mean square (NLMS) adaptive filter to estimate the coefficients of the real feedback path. A disadvantage of NLMS algorithm is to provide a slow convergence rate when coloured incoming signals are used. To address this problem, we propose a simple but effective way to apply an affine projection algorithm (APA) to acoustic feedback cancellation using PEM. Performance of the proposed method is evaluated for speech incoming signal in both cases of using/not using a probe noise. Simulation results show that the proposed method outperforms the PEM using NLMS in both terms of misalignment and added stable gain.

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