23 Mayıs 2025 Konferans bildirisi Açık Erişim

Olgun, Orhun; Hacıhabiboğlu, Hüseyin

Dublin Core

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  <dc:creator>Olgun, Orhun</dc:creator>
  <dc:creator>Hacıhabiboğlu, Hüseyin</dc:creator>
  <dc:date>2025-05-23</dc:date>
  <dc:description>Real sound sources have unique directional properties unlike simple idealised sources such as monopoles. Measur-

ing the directivity patterns of sound sources typically involves measuring sound power using pressure microphones

on a spherical grid surrounding the source. This approach is not very practical and is costly due to hardware

requirements. This paper proposes a reduced-complexity source directivity measurement approach. The spherical

harmonic decomposition of the sound field at a small number of measurement points around the source is first

obtained. Both pressure and its higher-order spatial derivatives are then calculated to estimate source directivity that

best matches a fixed-order model. The proposed approach is validated to assess its utility using eight second-order

measurements around a loudspeaker. The estimated directivity functions closely matched the manufacturer data,

particularly at low and mid-frequency bands.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/285986</dc:identifier>
  <dc:identifier>oai:aperta.ulakbim.gov.tr:285986</dc:identifier>
  <dc:language>eng</dc:language>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>https://creativecommons.org/licenses/by-nc-nd/4.0/</dc:rights>
  <dc:subject>akustik</dc:subject>
  <dc:subject>küresel harmonik</dc:subject>
  <dc:title>Sound Source Directivity Estimation in Spherical Fourier Domain from Sparse Measurements</dc:title>
  <dc:type>info:eu-repo/semantics/conferencePaper</dc:type>
  <dc:type>publication-conferencepaper</dc:type>
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