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Rotation of sound fields which are represented by means of a plane wave expansion

Rotation of sound fields which are represented by means of a plane wave expansion
Rotation of sound fields which are represented by means of a plane wave expansion
The synthesis of sound fields by means of planes waves is a widely used approach in auralization. In this paper, two methods for rotating acoustic fields, which are represented by this propagating kernel are investigated. For this, numerical simulations of acoustic fields that satisfy the homogeneous Helmholtz equation are performed. From this data, rotation algorithms are derived based on a spherical harmonic transformation and vector base amplitude panning functions. The results indicate that both methods are suitable for the generation of a rotation operator when the sound field is represented by means of plane waves. Nevertheless, the use of spherical harmonics leads to more accurate sound field reconstruction as long as the number of coefficients is equal to the number of plane waves considered in the expansion.
101-113
Springer
Murillo Gomez, Diego M.
21406e29-0bad-4420-810b-719706df5430
Fazi, Filippo
e5aefc08-ab45-47c1-ad69-c3f12d07d807
Figueroa-García, J.
Duarte-González, M.
Jaramillo-Isaza, S.
Orjuela-Cañon, A.
Díaz-Gutierrez, Y.
Murillo Gomez, Diego M.
21406e29-0bad-4420-810b-719706df5430
Fazi, Filippo
e5aefc08-ab45-47c1-ad69-c3f12d07d807
Figueroa-García, J.
Duarte-González, M.
Jaramillo-Isaza, S.
Orjuela-Cañon, A.
Díaz-Gutierrez, Y.

Murillo Gomez, Diego M. and Fazi, Filippo (2019) Rotation of sound fields which are represented by means of a plane wave expansion. Figueroa-García, J., Duarte-González, M., Jaramillo-Isaza, S., Orjuela-Cañon, A. and Díaz-Gutierrez, Y. (eds.) In Applied Computer Sciences in Engineering. WEA 2019. vol. 1052, Springer. pp. 101-113 .

Record type: Conference or Workshop Item (Paper)

Abstract

The synthesis of sound fields by means of planes waves is a widely used approach in auralization. In this paper, two methods for rotating acoustic fields, which are represented by this propagating kernel are investigated. For this, numerical simulations of acoustic fields that satisfy the homogeneous Helmholtz equation are performed. From this data, rotation algorithms are derived based on a spherical harmonic transformation and vector base amplitude panning functions. The results indicate that both methods are suitable for the generation of a rotation operator when the sound field is represented by means of plane waves. Nevertheless, the use of spherical harmonics leads to more accurate sound field reconstruction as long as the number of coefficients is equal to the number of plane waves considered in the expansion.

Text
10.1007_978-3-030-31019-6_9 - Accepted Manuscript
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e-pub ahead of print date: 9 October 2019
Published date: 2019

Identifiers

Local EPrints ID: 436779
URI: http://eprints.soton.ac.uk/id/eprint/436779
PURE UUID: f98ae5fe-0df6-4f19-ba78-b4934975d6fb

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Date deposited: 08 Jan 2020 17:33
Last modified: 21 Nov 2021 19:15

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Contributors

Author: Diego M. Murillo Gomez
Author: Filippo Fazi
Editor: J. Figueroa-García
Editor: M. Duarte-González
Editor: S. Jaramillo-Isaza
Editor: A. Orjuela-Cañon
Editor: Y. Díaz-Gutierrez

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