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Fast time domain modeling of surface scattering from reflectors and diffusers

Cox, TJ 2015, 'Fast time domain modeling of surface scattering from reflectors and diffusers' , The Journal of the Acoustical Society of America (JASA), 137 .

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Abstract

Time-domain prediction models have been developed for auditorium reflectors and room acoustic diffusers. The models are time-domain equivalents of the single-frequency formulations that exploit the Kirchhoff boundary conditions. Consequently, they are approximate, wave-based solutions to the Kirchhoff integral equation using surface meshes. The new time-domain formulations are validated by comparison to their frequency-domain equivalents for three different surfaces: a plane surface, a curved reflector, and a Schroeder diffuser. In terms of computation time and accuracy, the new models lie between the finite difference time domain and geometric room models.

Item Type: Article
Themes: Built and Human Environment
Schools: Schools > School of Computing, Science and Engineering > Salford Innovation Research Centre (SIRC)
Journal or Publication Title: The Journal of the Acoustical Society of America (JASA)
Publisher: Acoustical Society of America
Refereed: Yes
ISSN: 0001-4966
Related URLs:
Funders: Non funded research
Depositing User: TJ Cox
Date Deposited: 12 Jun 2015 12:56
Last Modified: 29 Nov 2015 01:38
URI: http://usir.salford.ac.uk/id/eprint/35097

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