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Room Acoustical Fields

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This book presents the theory of room acoustical fields and revises the Mirror Source Methods for practical computational use, emphasizing the wave character of acoustical fields. The presented higher methods include the concepts of “Mirror Point Sources” and “Corner sources which allow for an excellent approximation of complex room geometries and even equipped rooms.
In contrast to classical description, this book extends the theory of sound fields describing them by their complex sound pressure and the particle velocity. This approach enables accurate descriptions of interference and absorption phenomena.

Author(s): Fridolin Mechel (auth.)
Edition: 1
Publisher: Springer-Verlag Berlin Heidelberg
Year: 2013

Language: English
Pages: 595
Tags: Engineering Acoustics;Acoustics;Computational Science and Engineering;Building Construction;Signal, Image and Speech Processing

Front Matter....Pages i-xiii
Sound Sources....Pages 1-2
Monopole Line Source or Point Source....Pages 3-4
Mirror Sources....Pages 5-24
Modified Mirror Sources....Pages 25-32
Hard–Soft Superposition....Pages 33-37
Cubic Room....Pages 39-60
Zone Solution in a Cube....Pages 61-83
Field in a Rectangular Reverberant Room....Pages 85-155
Flat Rooms....Pages 157-176
Wedge Rooms....Pages 177-225
Vault Rooms....Pages 227-262
Cupola-Shaped Room....Pages 263-276
Mirror Source Method, Rules....Pages 277-298
Geometrical Subtasks and Admittances....Pages 299-318
Mirror Source Fields in Concave Rooms....Pages 319-336
Sound Radiation of a Cooling Tower....Pages 337-346
Reverberation with Mirror Sources....Pages 347-390
Mirror Sources in Convex Rooms....Pages 391-411
Modified Mirror Source Procedure....Pages 413-416
Mirror Sources and Corner Sources....Pages 417-434
Mirror Sources Combined with the Principle of Symmetry-Superposition (PSS)....Pages 435-453
Mirror Sources and Wedge Space Field....Pages 455-466
Corner Scattering from Literature....Pages 467-552
Shielding by Convex Corners or Screens....Pages 553-555
Two-Dimensional Rooms....Pages 557-583
Concluding Remarks....Pages 585-586
Back Matter....Pages 587-595