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"affiliations": [ { "name": "ODT\u00dc" } ], "person_or_org": { "family_name": "Olgun", "given_name": "Orhun", "identifiers": [ { "identifier": "0000-0002-9903-2605", "scheme": "orcid" } ], "name": "Olgun, Orhun", "type": "personal" } }, { "affiliations": [ { "name": "ODT\u00dc" } ], "person_or_org": { "family_name": "Hac\u0131habibo\u011flu", "given_name": "H\u00fcseyin", "identifiers": [ { "identifier": "0000-0002-5399-0162", "scheme": "orcid" } ], "name": "Hac\u0131habibo\u011flu, H\u00fcseyin", "type": "personal" } } ], "description": "

Real sound sources have unique directional properties unlike simple idealised sources such as monopoles. Measur-

\n\n

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

\n\n

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

\n\n

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

\n\n

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

\n\n

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

\n\n

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

\n\n

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

\n\n

particularly at low and mid-frequency bands.

", "languages": [ { "id": "eng", "title": { "en": "English" } } ], "publication_date": "2025-05-23", "resource_type": { "id": "publication-conferencepaper", "title": { "en": "Conference paper", "tr": "Konferans bildirisi" } }, "rights": [ { "description": { "en": "" }, "icon": "cc-by-nc-nd-icon", "id": "cc-by-nc-nd-4.0", "props": { "scheme": "spdx", "url": "https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode" }, "title": { "en": "Creative Commons Attribution Non Commercial No Derivatives 4.0 International" } } ], "subjects": [ { "subject": "akustik" }, { "subject": "k\u00fcresel harmonik" } ], "title": "Sound Source Directivity Estimation in Spherical Fourier Domain from Sparse Measurements" }, "parent": { "access": { "owned_by": { "user": "1157" } }, "communities": {}, "id": "285985", "pids": { "doi": { "identifier": "10.48623/aperta.285985", "provider": "datacite" } } }, "pids": { "doi": { "identifier": "10.48623/aperta.285986", "provider": "dummy" }, "oai": { "identifier": "oai:aperta.ulakbim.gov.tr:285986", "provider": "oai" } }, "revision_id": 1, "stats": { "all_versions": { "data_volume": 370645699.0, "downloads": 41, "unique_downloads": 37, "unique_views": 8, "views": 8 }, "this_version": { "data_volume": 370645699.0, "downloads": 41, "unique_downloads": 37, "unique_views": 8, "views": 8 } }, "status": "published", "swh": {}, "updated": "2025-06-05T08:10:23.489227+00:00", "versions": { "index": 1, "is_latest": true } }