Noise cancellation over spatial regions using adaptive wave domain processing

Jihui Zhang, Wen Zhang, Thushara D. Abhayapala

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    31 Citations (Scopus)

    Abstract

    This paper proposes wave-domain adaptive processing for noise cancellation within a large spatial region. We use fundamental solutions of the Helmholtz wave-equation as basis functions to express the noise field over a spatial region and show the wave-domain processing directly on the decomposition coefficients to control the entire region. A feedback control system is implemented, where only a single microphone array is placed at the boundary of the control region to measure the residual signals, and a loudspeaker array is used to generate the anti-noise signals. We develop the adaptive wave-domain filtered-x least mean square algorithm. Simulation results show that using the proposed method the noise over the entire control region can be significantly reduced with fast convergence in both free-field and reverberant environments.

    Original languageEnglish
    Title of host publication2015 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2015
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    ISBN (Electronic)9781479974504
    DOIs
    Publication statusPublished - 24 Nov 2015
    EventIEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2015 - New Paltz, United States
    Duration: 18 Oct 201521 Oct 2015

    Publication series

    Name2015 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2015

    Conference

    ConferenceIEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2015
    Country/TerritoryUnited States
    CityNew Paltz
    Period18/10/1521/10/15

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