23 Mayıs 2025 Konferans bildirisi Açık Erişim

Olgun, Orhun; Hacıhabiboğlu, Hüseyin

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        "affiliation": "ODT\u00dc", 
        "name": "Olgun, Orhun", 
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        "affiliation": "ODT\u00dc", 
        "name": "Hac\u0131habibo\u011flu, H\u00fcseyin", 
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    "description": "<p>Real sound sources have unique directional properties unlike simple idealised sources such as monopoles. Measur-</p>\n\n<p>ing the directivity patterns of sound sources typically involves measuring sound power using pressure microphones</p>\n\n<p>on a spherical grid surrounding the source. This approach is not very practical and is costly due to hardware</p>\n\n<p>requirements. This paper proposes a reduced-complexity source directivity measurement approach. The spherical</p>\n\n<p>harmonic decomposition of the sound field at a small number of measurement points around the source is first</p>\n\n<p>obtained. Both pressure and its higher-order spatial derivatives are then calculated to estimate source directivity that</p>\n\n<p>best matches a fixed-order model. The proposed approach is validated to assess its utility using eight second-order</p>\n\n<p>measurements around a loudspeaker. The estimated directivity functions closely matched the manufacturer data,</p>\n\n<p>particularly at low and mid-frequency bands.</p>", 
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    "has_grant": true, 
    "keywords": [
      "akustik", 
      "k\u00fcresel harmonik"
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    "language": "eng", 
    "license": {
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    "meeting": {
      "dates": "22-24 May\u0131s 2025", 
      "place": "Var\u015fova, Polonya", 
      "title": "158th Convention of the Audio Engineering Society"
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    "publication_date": "2025-05-23", 
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    "science_branches": [
      "Teknik Bilimler > Bilgi Sistemleri, Haberle\u015fme ve Kontrol M\u00fchendisli\u011fi > Sinyal \u0130\u015fleme > Alg\u0131lay\u0131c\u0131 Dizileri \u0130\u00e7in Sinyal \u0130\u015fleme"
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    "title": "Sound Source Directivity Estimation in Spherical Fourier Domain from Sparse Measurements", 
    "tubitak_grants": [
      {
        "program": "1002", 
        "project_number": "123E399", 
        "workgroup": "EEEAG"
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