Spatial noise cancellation inside cars: Performance analysis and experimental results

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

    24 Citations (Scopus)

    Abstract

    A loudspeaker array is a key component in active noise cancellation (ANC) systems. Most in-car ANC systems utilize the car's own integrated loudspeakers to cancel the noise due to engine and other sources. In this paper, we evaluate the integrated loudspeakers' noise cancelling capabilities by analyzing the in-car noise field and the loudspeaker responses. We show that the average noise power in a spatial region can be expressed using a series of coefficients, and that the noise field can be decomposed into several basis noise patterns. Through analysing the measurements in a car, we show that the car's built-in loudspeakers are capable of attenuating the driving noise by up to 30 dB for frequencies up to 500 Hz within a spherical region of 10 cm radius.

    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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