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Comparison of different methods for simulating acoustic diffuse field excitations
Publikationstyp
Journal Article
Date Issued
2013-11-01
Sprache
English
Author(s)
Institut
TORE-URI
Volume
99
Issue
6
Start Page
931
End Page
939
Citation
Acta Acustica united with Acustica 6 (99): 931-939 (2013)
Publisher DOI
Scopus ID
Publisher
Hirzel
In this paper various methods of calculating the diffuse field in reverberant rooms are considered. In particular, a plane-wave model and a stochastic response analysis, which both are able to predict a diffuse field based on its stochastic properties, are compared in detail. While the former directly calculates the sound field generated by a number of plane wave sources, the later decomposes the energy density of the diffuse field. Additionally, the sound field in a reverberant room is also determined by means of a fast multipole boundary element method. The resulting diffuse fields from those methodologies are compared. Furthermore, the efficiency of applying these diffuse field models in a simulation of sound transmission loss experiments is discussed, and the accuracy of the calculated transmission loss with different diffuse excitations is validated by means of measurements. © S. Hirzel Verlag · EAA.
DDC Class
600: Technik
620: Ingenieurwissenschaften