A comparison of two strategies for generating sound zones in a room.

Finn Jacobsen, Martin Olsen, Martin Møller, Finn T. Agerkvist

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    Abstract

    For some purposes it may be of interest to generate sound zones with different acoustic prop-erties in a room. This paper compares two strategies for generating such zones. One method is based on ‘contrast optimisation’: the idea is to maximise the ratio of the potential energy in a ‘bright’ (ensonified) zone to the potential energy in a ‘dark’ (quiet) zone with a given source configuration. An alternative method based on ‘sound field synthesis’ has the more ambitious goal to control the sound field in the bright zone in detail, for example, to generate a plane wave that propagates in a certain direction. The two methods are analysed theoretical-ly and examined through simulations and experimentally.
    Original languageEnglish
    Title of host publicationProceedings of 18th International Congress on Sound and Vibration
    PublisherInternational Institute of Acoustics and Vibration
    Publication date2011
    ISBN (Print)978-85-63243-01-0
    Publication statusPublished - 2011
    Event18th International Congress on Sound and Vibration - Rio de Janeiro, Brazil
    Duration: 10 Jul 201114 Jul 2011
    Conference number: 18
    http://www.icsv18.org/

    Conference

    Conference18th International Congress on Sound and Vibration
    Number18
    Country/TerritoryBrazil
    CityRio de Janeiro
    Period10/07/201114/07/2011
    Internet address

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