On a tradeoff between dereverberation and noise reduction using the MVDR beamformer

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    7 Scopus citations

    Abstract

    The minimum variance distortionless response (MVDR) beamformer can be used for both speech dereverberation and noise reduction. In this paper we analyse the tradeoff between the amount of speech dereverberation and noise reduction achieved by the MVDR beamformer. We show that the amount of noise reduction that is sacrificed when desiring both speech dereverberation and noise reduction depends on the direct-to-reverberation ratio of the acoustic transfer function between the desired source and a reference microphone. The performance evaluation supports the theoretical analysis and demonstrates the tradeoff between speech dereverberation and noise reduction.

    Original languageEnglish
    Title of host publication2009 IEEE International Conference on Acoustics, Speech, and Signal Processing - Proceedings, ICASSP 2009
    Pages3741-3744
    Number of pages4
    DOIs
    StatePublished - 2009
    Event2009 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2009 - Taipei, Taiwan, Province of China
    Duration: 19 Apr 200924 Apr 2009

    Publication series

    NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
    ISSN (Print)1520-6149

    Conference

    Conference2009 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2009
    Country/TerritoryTaiwan, Province of China
    CityTaipei
    Period19/04/0924/04/09

    Keywords

    • Beamforming
    • Microphone arrays
    • Minimum variance distortionless response (MVDR) filter
    • Noise reduction
    • Speech dereverberation
    • Speech enhancement

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