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    A Blind Approach to Joint Noise and Acoustic Echo Cancellation

    Access Status
    Fulltext not available
    Authors
    Low, Siow Yong
    Nordholm, Sven
    Date
    2005
    Type
    Conference Paper
    
    Metadata
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    Citation
    Low, S.Y. and Nordholm, S. 2005. A Blind Approach to Joint Noise and Acoustic Echo Cancellation, in IEEE International Conference on Acoustics, Speech and Signal Processing, Mar 18-23 2005, pp. III-69-III-72. Philadelphia, Pennsylvania, USA: IEEE.
    Source Title
    IEEE ICASSP 2005 Philadelphia Proceedings on DVD-ROM
    Source Conference
    2005 IEEE International Conference on Acoustics, Speech, and Signal Processing
    DOI
    10.1109/ICASSP.2005.1415648
    ISBN
    0-7803-9076-8
    School
    Western Australian Telecommunications Research Institute (Research Institute)
    URI
    http://hdl.handle.net/20.500.11937/4417
    Collection
    • Curtin Research Publications
    Abstract

    This paper introduces a new scheme which combines the popular blind signal separation (BSS) and a post-processor to jointly suppress noise and acoustic echo. The new L element structure uses the BSS as a front-end processor to spatially extract the target signal from the interference (noise and echo). Statistical measures are then employed to select the target signal dominant signal from the BSS outputs. The remaining L − 1 BSS outputs (noise and echo dominant) and the existing far-end line echo are then used as the reference signals in an adaptive noise canceller (ANC) to temporally enhance the target signal. The novel structure bypasses the need for any a priori information whilst compensating the separation quality of the BSS temporally. Real room evaluations demonstrate the efficacy of the scheme in both noisy double-talk and non-double-talk situation.

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