Abstract
So far in this book we dealt with sound propagation in terms of the wave equation. This procedure becomes very complicated, however, when treating sound fields inside rooms with complicated shapes like concert halls or churches. An approximate method called geometrical acoustics is often useful in these cases.
This method considers sound propagation in terms of so-calledsound rays. Sound rays were already introduced in Section 10.4, where a ray symbol was used to designate the wave bundle that emerges from a circular hole in a rigid wall when R ≫ λ. The idea is that the wave bundle propagates along a straight line like a ray of light.
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© 2009 Springer-Verlag Berlin Heidelberg
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Blauert, J., Xiang, N. (2009). Geometric Acoustics and Diffuse Sound Fields. In: Acoustics for Engineers. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-03393-3_12
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DOI: https://doi.org/10.1007/978-3-642-03393-3_12
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-03392-6
Online ISBN: 978-3-642-03393-3
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