Room Acoustical Fields

Room Acoustical Fields explores sound field theory with an emphasis on the wave character of acoustical fields. Readers will find revised mirror source methods for practical computational use, in addition to coverage of mirror point and corner sources.

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.

Revises the Mirror Source Methods for practical computational use Allows for new and more precise numerical results Presents the method of corner sources and demonstrates its practical relevance

Inhalt
Sound Sources.- Monopole line source or point source.- Mirror sources.- Modified mirror sources.- Hard-soft Superposition.- Cubic room.- Zone Solution in a cube.- Field in a rectangular reverberant room.- Flat rooms.- Wedge rooms.- Vault rooms.- Cupola shaped rooms.- mirror source methods, rules.- Geometrical subtasks and admittances.- Mirror source fields in concave rooms.- Sound radiation of a cooling tower.- Reverberation with mirror sources.- Mirror sources in convex rooms.- Modified mirror procedure.- Mirror sources and corner sources.- Mirror sources combined with the principle of symmetry-superposition (PSS).- Mirror Sources and wedge space field.- Corner scattering from literature.- Two-dimensional rooms.- Concluding remarks.