Adjoint-based optimization of sound reinforcement including non-uniform flow

dc.contributor.authorStein, Lewin
dc.contributor.authorStraube, Florian
dc.contributor.authorSesterhenn, Jörn
dc.contributor.authorWeinzierl, Stefan
dc.contributor.authorLemke, Mathias
dc.date.accessioned2021-11-19T21:36:13Z
dc.date.available2021-11-19T21:36:13Z
dc.date.issued2019-09-26
dc.description.abstractThe determination of optimal geometric arrangements and electronic drives of loudspeaker arrays in sound reinforcement applications is an ill-posed inverse problem. This paper introduces an innovative method to determine complex driving functions, also considering complex environmental conditions. As an alternative to common frequency domain methods, the authors present an adjoint-based approach in the time domain: Acoustic sources are optimized in order to generate a given target sound field. Instead of the Helmholtz equation, the full non-linear Euler equations are considered. This enables an easier treatment of non-uniform flow and boundary conditions. As proof of concept, a circular and a linear monopole array are examined. For the latter, the environmental conditions include wind and thermal stratification. For all examples, the method is able to provide appropriate driving functions.en
dc.description.sponsorshipDFG, 393106680, Optimale Schallfelderzeugung für Beschallungsaufgaben im Zeit- und Frequenzbereichen
dc.identifier.eissn1520-8524
dc.identifier.issn0001-4966
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/13908
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-12682
dc.language.isoen
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subject.ddc534 Schall und verwandte Schwingungende
dc.subject.otherfluid dynamicsen
dc.subject.othertime domain approachen
dc.subject.otheracoustical propertiesen
dc.subject.otherpartial differential equationsen
dc.subject.otheracoustic transducersen
dc.subject.otheracoustic signal processingen
dc.subject.otherfourier analysisen
dc.subject.otherspeed of sounden
dc.subject.othermicrophonesen
dc.subject.othervector fieldsen
dc.titleAdjoint-based optimization of sound reinforcement including non-uniform flowen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.doi10.1121/1.5126516
dcterms.bibliographicCitation.issue3
dcterms.bibliographicCitation.journaltitleThe Journal of the Acoustical Society of Americaen
dcterms.bibliographicCitation.originalpublishernameAcoustical Society of America (ASA), AIP Publishingen
dcterms.bibliographicCitation.originalpublisherplaceMelville, NYen
dcterms.bibliographicCitation.pageend1785
dcterms.bibliographicCitation.pagestart1774
dcterms.bibliographicCitation.volume146
tub.accessrights.dnbfreeen
tub.affiliationFak. 1 Geistes- und Bildungswissenschaften>Inst. Sprache und Kommunikation>FG Audiokommunikationde
tub.affiliation.facultyFak. 1 Geistes- und Bildungswissenschaftende
tub.affiliation.groupFG Audiokommunikationde
tub.affiliation.instituteInst. Sprache und Kommunikationde
tub.publisher.universityorinstitutionTechnische Universität Berlinen
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