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    Designs of Low Delay Cosine Modulated Filter Banks and Subband Amplifiers

    Access Status
    Fulltext not available
    Authors
    Ling, B.
    Al Hosni, K.
    Dam, Hai
    Date
    2011
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Ling, Bingo Wing-Kuen and Al Hosni, Khoula Zahir Khamis and Dam, Hai Huyen. 2011. Designs of Low Delay Cosine Modulated Filter Banks and Subband Amplifiers, in Perez-Neira, Ana L. (ed), 19th European Signal Processing Conference (EUSIPCO 2011), Aug 29 2011. Barcelona, Spain: Universitat Politecnita de Catalunya
    Source Title
    Proceedings of the 19th European Signal Processing Conference
    Source Conference
    19th European Signal Processing Confernece (EUSIPCO 2011)
    Additional URLs
    http://www.eurasip.org/Proceedings/Eusipco/Eusipco2011/papers/1569426615.pdf
    School
    Department of Mathematics and Statistics
    URI
    http://hdl.handle.net/20.500.11937/40437
    Collection
    • Curtin Research Publications
    Abstract

    This paper proposes a design of a low delay cosine modulated filter bank and subband amplifier coefficients for digital audio hearing aids denoising applications. The objective of the design is to minimize the delay of the filter bank. Specifications on the maximum magnitude of both the real and the imaginary parts of the transfer function distortion and the aliasing distortion of the filter bank are imposed. Also, the constraint on the maximum absolute difference between the desirable magnitude square response and the designed magnitude square response of the prototype filter over both the passband and the stopband is considered. The subband amplifier coefficients are designed based on a least squares training approach. The average mean square errors between the noisy samples and the clean samples is minimized. Computer numerical simulation results show that our proposed approach could significantly improve the signal-to-noise ratio of digital audio hearing aids.

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