New methods of scattering coefficients computation for the prediction of room acoustic parameters

Xiangyang Zeng, Claus Lynge Christensen, Jens Holger Rindel

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

To include the sound scattering caused by limited size of surfaces in room acoustic computer simulations, some model for scattering must be included in room acoustics computer models. A large concert hall usually contains a variety of small and complex surfaces and it is not practical to obtain accurate scattering coefficients of all these surfaces. Even if these frequency dependent coefficients could be obtained in the design phase, the modeling process would become more time consumed and increase the cost of design. In such a case, the appropriate simplification of the model and the definition of scattering coefficients by experience will become important. But in some other cases, calculation of a detailed model is necessary and possible. For these different cases, practical methods to define or calculate scattering coefficients, which include a new approach of modeling surface scattering and scattering caused by edge diffraction, have been presented. The predicted and measured acoustic parameters have been compared in order to testify the practical approaches recommended in the paper.

Original languageEnglish
Title of host publicationTheoretical and Computational Acoustics 2005
Subtitle of host publicationHangzhou, China, 19 - 22 September 2005
PublisherWorld Scientific Publishing Co.
Pages209-219
Number of pages11
ISBN (Electronic)9789812772602
ISBN (Print)9812700846, 9789812700841
DOIs
StatePublished - 1 Jan 2006

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