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dc.contributor.authorHill, Adam J.
dc.contributor.authorHawksford, Malcolm O. J.
dc.date.accessioned2012-06-20T11:50:32Z
dc.date.available2012-06-20T11:50:32Z
dc.date.issued2011-06
dc.identifier.citationvol. 36, no. 3, pp. 32-40. May/June 2011.en
dc.identifier.urihttp://hdl.handle.net/10545/229872
dc.description.abstractLive-sound subwoofer systems should deliver low-frequency sound evenly distributed throughout the audience area while simultaneously minimizing sound pressure levels on stage. Approximate solutions generally exploit cardioid subwoofers and/or steerable subwoofer clusters, yet require venue-specific manual fine tuning limited mainly by practical positioning issues. Enhanced live-sound systems are explored using a virtual three-dimensional acoustic space to model dominant venue characteristics. Specifically the Chameleon Subwoofer Array (CSA) is incorporated, already proposed as a solution to small-room low-frequency sound reproduction by extending the available degrees of freedom to control sound distribution in the target space. The CSA is adapted and scaled to match the large-scale dimensions typical of live events with 3-D simulation used to optimize and validate performance. Adaptation of existing industry-standard equipment with only minor modification is presented as a core feature.
dc.language.isoenen
dc.publisherInstitute of Acousticsen
dc.subjectAcousticsen
dc.subjectLive sounden
dc.subjectLoudspeakersen
dc.subjectDigital signal processingen
dc.titleChameleon subwoofer arrays in live sounden
dc.typeArticleen
dc.contributor.departmentUniversity of Essexen
dc.identifier.journalAcoustics Bulletinen
html.description.abstractLive-sound subwoofer systems should deliver low-frequency sound evenly distributed throughout the audience area while simultaneously minimizing sound pressure levels on stage. Approximate solutions generally exploit cardioid subwoofers and/or steerable subwoofer clusters, yet require venue-specific manual fine tuning limited mainly by practical positioning issues. Enhanced live-sound systems are explored using a virtual three-dimensional acoustic space to model dominant venue characteristics. Specifically the Chameleon Subwoofer Array (CSA) is incorporated, already proposed as a solution to small-room low-frequency sound reproduction by extending the available degrees of freedom to control sound distribution in the target space. The CSA is adapted and scaled to match the large-scale dimensions typical of live events with 3-D simulation used to optimize and validate performance. Adaptation of existing industry-standard equipment with only minor modification is presented as a core feature.


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