Evaluation of spatial active noise cancellation performance using spherical harmonic analysis

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    7 Citations (Scopus)

    Abstract

    This paper presents a novel metric to evaluate the performance of spatial active noise cancellation (ANC) systems. We show that the acoustic potential energy within a spherical region can be expressed by a weighed squared sum of spherical harmonic coefficients. The proposed metric allows convenient evaluation of spatial ANC performance using a spherical microphone array. In order to evaluate the effectiveness of this metric, we set up a experimental ANC system and conducted a series narrow band and wide band ANC experiments, the results show that the proposed potential energy method provides a reliable characterization of the performance of spatial ANC systems.

    Original languageEnglish
    Title of host publication2016 International Workshop on Acoustic Signal Enhancement, IWAENC 2016
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    ISBN (Electronic)9781509020072
    DOIs
    Publication statusPublished - 19 Oct 2016
    Event15th International Workshop on Acoustic Signal Enhancement, IWAENC 2016 - Xi'an, China
    Duration: 13 Sept 201616 Sept 2016

    Publication series

    Name2016 International Workshop on Acoustic Signal Enhancement, IWAENC 2016

    Conference

    Conference15th International Workshop on Acoustic Signal Enhancement, IWAENC 2016
    Country/TerritoryChina
    CityXi'an
    Period13/09/1616/09/16

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