23 Mayıs 2025 Konferans bildirisi Açık Erişim

Olgun, Orhun; Hacıhabiboğlu, Hüseyin

DataCite XML

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  <identifier identifierType="DOI">10.48623/aperta.285986</identifier>
  <creators>
    <creator>
      <creatorName>Olgun, Orhun</creatorName>
      <givenName>Orhun</givenName>
      <familyName>Olgun</familyName>
      <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0000-0002-9903-2605</nameIdentifier>
      <affiliation>ODTÜ</affiliation>
    </creator>
    <creator>
      <creatorName>Hacıhabiboğlu, Hüseyin</creatorName>
      <givenName>Hüseyin</givenName>
      <familyName>Hacıhabiboğlu</familyName>
      <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0000-0002-5399-0162</nameIdentifier>
      <affiliation>ODTÜ</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Sound Source Directivity Estimation In Spherical Fourier Domain From Sparse Measurements</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2025</publicationYear>
  <subjects>
    <subject>akustik</subject>
    <subject>küresel harmonik</subject>
  </subjects>
  <dates>
    <date dateType="Issued">2025-05-23</date>
  </dates>
  <language>en</language>
  <resourceType resourceTypeGeneral="Text">Conference paper</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/285986</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsVersionOf">10.48623/aperta.285985</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="https://creativecommons.org/licenses/by-nc-nd/4.0/">Creative Commons Attribution-NonCommercial-NoDerivatives</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">&lt;p&gt;Real sound sources have unique directional properties unlike simple idealised sources such as monopoles. Measur-&lt;/p&gt;

&lt;p&gt;ing the directivity patterns of sound sources typically involves measuring sound power using pressure microphones&lt;/p&gt;

&lt;p&gt;on a spherical grid surrounding the source. This approach is not very practical and is costly due to hardware&lt;/p&gt;

&lt;p&gt;requirements. This paper proposes a reduced-complexity source directivity measurement approach. The spherical&lt;/p&gt;

&lt;p&gt;harmonic decomposition of the sound field at a small number of measurement points around the source is first&lt;/p&gt;

&lt;p&gt;obtained. Both pressure and its higher-order spatial derivatives are then calculated to estimate source directivity that&lt;/p&gt;

&lt;p&gt;best matches a fixed-order model. The proposed approach is validated to assess its utility using eight second-order&lt;/p&gt;

&lt;p&gt;measurements around a loudspeaker. The estimated directivity functions closely matched the manufacturer data,&lt;/p&gt;

&lt;p&gt;particularly at low and mid-frequency bands.&lt;/p&gt;</description>
  </descriptions>
  <fundingReferences>
    <fundingReference>
      <funderName>Türkiye Bilimsel ve Teknolojik Araştirma Kurumu</funderName>
      <funderIdentifier funderIdentifierType="Crossref Funder ID">https://doi.org/10.13039/501100004410</funderIdentifier>
      <awardNumber>123E399</awardNumber>
    </fundingReference>
  </fundingReferences>
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