Acoustical Wave Propagator Method For Two-dimensional Sound Propagation
Author(s)
H. M. Sun, J. B. Wang & J. Pan
Abstract
Acoustical Wave Propagator method for twodimensional
sound propagation
H. M. Sun, J. B. Wang & J. Pan
School of Mechanical Engineering, The University of Western
Australia, Australia.
Abstract
In this paper, the Acoustical Wave Propagator (AWP) method is used to predict
sound propagation in two dimensional room. The Chebyshev polynomial
expansion scheme is applied to approximate the exponential wave propagator and
Fast Fourier transform method is used to evaluate the spatial derivatives. The fi-ee
field prediction using AWP is compared with exact solutions for accuracy
assessment. Various rooms are used to demonstrate the capacity of AWP in
modelling transient sound propagation.
1 Introduction
The study of room acoustics in an enclosure is important. The sound quality of a
room is often determined by the early decay time and reverberation. The accurate
prediction of sound distribution would be extremely useful for rooms with
specific acoustic requirement such as concert halls and provide valu
Keywords
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