Stevens, Francis Kit Murfin, Murphy, Damian Thomas orcid.org/0000-0002-6676-9459, Savioja, Lauri et al. (1 more author) (2017) Modeling Sparsely Reflecting Outdoor Acoustic Scenes using the Waveguide Web. IEEE Transactions On Audio Speech And Language Processing. 7918519. pp. 1566-1578. ISSN 1558-7916
Abstract
Computer games and virtual reality require digital reverberation algorithms, which can simulate a broad range of acoustic spaces, including locations in the open air. Additionally, the detailed simulation of environmental sound is an area of significant interest due to the propagation of noise pollution over distances and its related impact on well-being, particularly in urban spaces. This paper introduces the waveguide web digital reverberator design for modeling the acoustics of sparsely reflecting outdoor environments; a design that is, in part, an extension of the scattering delay network reverberator. The design of the algorithm is based on a set of digital waveguides connected by scattering junctions at nodes that represent the reflection points of the environment under study. The structure of the proposed reverberator allows for accurate reproduction of reflections between discrete reflection points. Approximation errors are caused when the assumption of point-like nodes does not hold true. Three example cases are presented comparing waveguide web simulated impulse responses for a traditional shoebox room, a forest scenario, and an urban courtyard, with impulse responses created using other simulation methods or from real-world measurements. The waveguide web algorithm can better enable the acoustic simulation of outdoor spaces and so contribute toward sound design for virtual reality applications, gaming, and auralization, with a particular focus on acoustic design for the urban environment.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2017 IEEE. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details |
Keywords: | acoustic propagation,acoustic signal processing,Acoustics,IIR digital filters,numerical simulation |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Electronic Engineering (York) |
Depositing User: | Pure (York) |
Date Deposited: | 26 Apr 2017 14:20 |
Last Modified: | 07 Feb 2025 00:16 |
Published Version: | https://doi.org/10.1109/TASLP.2017.2699424 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1109/TASLP.2017.2699424 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:115692 |
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