Acoustic radiosity simulation with custom bidirectional reflectance distribution implementation in three dimensionsa).
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| Title: | Acoustic radiosity simulation with custom bidirectional reflectance distribution implementation in three dimensionsa). |
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| Authors: | Fatela, João1 (AUTHOR) joao.garrettfatela@unicampania.it, Heimes, Anne2 (AUTHOR), Vorländer, Michael2 (AUTHOR), Masullo, Massimiliano1 (AUTHOR), Maffei, Luigi1 (AUTHOR) |
| Source: | Journal of the Acoustical Society of America. May2026, Vol. 159 Issue 5, p3925-3940. 16p. |
| Subjects: | Sound wave scattering, Ray tracing algorithms, Acoustic wave propagation, Computer performance |
| Abstract: | Geometrical acoustics methods provide efficient techniques to estimate sound propagation properties in virtual spaces. Advances based on acoustic radiance transfer principles facilitate the simulation of environments with complex scattering distributions via the implementation of bidirectional reflectance distribution functions (BRDF). Though significant work has been developed in the optimization of such methods, the effects of complex BRDF implementation have seldom been studied. In this article, two scattering distribution modeling approaches are compared, based on random incidence and bidirectional scattering coefficients, respectively. Their implementation in an acoustic radiosity (AR) simulation tool is discussed. The simulation of a single façade shows that random-incidence modeling in the radiosity tool aligns with state-of-the-art ray-tracing (RT) simulation. Bidirectional scattering approach results of retro-reflective surface simulations are closest to a reference wave-based simulation output, meaning they capture more of the spatial details of the scattering distribution. The simulation of a street canyon scene further highlights how the choice of scattering modeling leads to significant differences in the energy time curve. The results evidence minor artifacts due to the AR and RT implementations. Major computational performance metrics are also assessed. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of the Acoustical Society of America is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 194178252 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Acoustic radiosity simulation with custom bidirectional reflectance distribution implementation in three dimensionsa). – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Fatela%2C+João%22">Fatela, João</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> joao.garrettfatela@unicampania.it</i><br /><searchLink fieldCode="AR" term="%22Heimes%2C+Anne%22">Heimes, Anne</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Vorländer%2C+Michael%22">Vorländer, Michael</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Masullo%2C+Massimiliano%22">Masullo, Massimiliano</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Maffei%2C+Luigi%22">Maffei, Luigi</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+the+Acoustical+Society+of+America%22">Journal of the Acoustical Society of America</searchLink>. May2026, Vol. 159 Issue 5, p3925-3940. 16p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Sound+wave+scattering%22">Sound wave scattering</searchLink><br /><searchLink fieldCode="DE" term="%22Ray+tracing+algorithms%22">Ray tracing algorithms</searchLink><br /><searchLink fieldCode="DE" term="%22Acoustic+wave+propagation%22">Acoustic wave propagation</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+performance%22">Computer performance</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Geometrical acoustics methods provide efficient techniques to estimate sound propagation properties in virtual spaces. Advances based on acoustic radiance transfer principles facilitate the simulation of environments with complex scattering distributions via the implementation of bidirectional reflectance distribution functions (BRDF). Though significant work has been developed in the optimization of such methods, the effects of complex BRDF implementation have seldom been studied. In this article, two scattering distribution modeling approaches are compared, based on random incidence and bidirectional scattering coefficients, respectively. Their implementation in an acoustic radiosity (AR) simulation tool is discussed. The simulation of a single façade shows that random-incidence modeling in the radiosity tool aligns with state-of-the-art ray-tracing (RT) simulation. Bidirectional scattering approach results of retro-reflective surface simulations are closest to a reference wave-based simulation output, meaning they capture more of the spatial details of the scattering distribution. The simulation of a street canyon scene further highlights how the choice of scattering modeling leads to significant differences in the energy time curve. The results evidence minor artifacts due to the AR and RT implementations. Major computational performance metrics are also assessed. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of the Acoustical Society of America is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1121/10.0043765 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 16 StartPage: 3925 Subjects: – SubjectFull: Sound wave scattering Type: general – SubjectFull: Ray tracing algorithms Type: general – SubjectFull: Acoustic wave propagation Type: general – SubjectFull: Computer performance Type: general Titles: – TitleFull: Acoustic radiosity simulation with custom bidirectional reflectance distribution implementation in three dimensionsa). Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Fatela, João – PersonEntity: Name: NameFull: Heimes, Anne – PersonEntity: Name: NameFull: Vorländer, Michael – PersonEntity: Name: NameFull: Masullo, Massimiliano – PersonEntity: Name: NameFull: Maffei, Luigi IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 00014966 Numbering: – Type: volume Value: 159 – Type: issue Value: 5 Titles: – TitleFull: Journal of the Acoustical Society of America Type: main |
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