Spherical decomposition of arbitrary scattering geometries for virtual acoustic environments

Loading...
Thumbnail Image
Access rights
openAccess
Journal Title
Journal ISSN
Volume Title
Conference article in proceedings
Date
2021-09
Major/Subject
Mcode
Degree programme
Language
en
Pages
7
199-205
Series
Proceedings of the 24th International Conference on Digital Audio Effects, Proceedings of the 24th International Conference on Digital Audio Effects (DAFx20in21)
Abstract
A method is proposed to encode the acoustic scattering of objects for virtual acoustic applications through a multiple-input and multiple-output framework. The scattering is encoded as a matrix in the spherical harmonic domain, and can be re-used and manipulated (rotated, scaled and translated) to synthesize various sound scenes. The proposed method is applied and validated using Boundary Element Method simulations which shows accurate results between references and synthesis. The method is compatible with existing frameworks such as Ambisonics and image source methods.
Description
Keywords
virtual acoustics, spherical harmonics, scattering
Other note
Citation
Gonzalez Diaz , R , Politis , A & Lokki , T 2021 , Spherical decomposition of arbitrary scattering geometries for virtual acoustic environments . in Proceedings of the 24th International Conference on Digital Audio Effects . Proceedings of the 24th International Conference on Digital Audio Effects (DAFx20in21) , DAFx , pp. 199-205 , International Conference on Digital Audio Effects , Vienna , Austria , 08/09/2021 . < https://dafx2020.mdw.ac.at/proceedings/papers/DAFx20in21_paper_49.pdf >