Sound field control for reduction of noise from outdoor concerts

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    We investigate sound field control based on the concept of sound zones for the mitigation of low frequency noise from outdoor concerts to the surrounding area by adding secondary loudspeakers to the existing primary sound system. The filters for the secondary loudspeakers are the result of an optimization problem that minimizes the total sound pressure level of both primary and secondary loudspeakers in a sensitive area and the impact of the secondary loudspeakers on the audience area of the concert. We report results from three different experiments with increasing complexity and scale. The sound field control system was reducing the sound pressure level in the dark zone on average by 10 dB below 1 kHz in a small scale experiment in anechoic conditions, by up to 14 dB in a controlled large scale open-air experiment and by up to 6 dB at a pilot test at a music festival.
    Original languageEnglish
    Title of host publicationProceedings of 145th Audio Engineering Society Convention
    Number of pages8
    PublisherAudio Engineering Society
    Publication date2018
    Publication statusPublished - 2018
    Event145th International Pro Audio Convention - Jacob K. Javits Convention Center, New York, United States
    Duration: 17 Oct 201820 Oct 2018


    Conference145th International Pro Audio Convention
    LocationJacob K. Javits Convention Center
    Country/TerritoryUnited States
    CityNew York
    Internet address


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