Page 14 - The Master Handbook Of Acoustics

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CONTENTS

Chapter 11 Diffraction of Sound 245

Rectilinear Propagation 245
Diffraction and Wavelength 246
Diffraction of Sound by Large and Small Apertures 247
Diffraction of Sound by Obstacles 248
Diffraction of Sound by a Slit 249
Diffraction by the Zone Plate 250
Diffraction around the Human Head 251
Diffraction by Loudspeaker Cabinet Edges 253
Diffraction by Various Objects 254

Chapter 12 Refraction of Sound 257

Refraction of Sound 258
Refraction of sound in solids 258
Refraction of sound in the atmosphere 260
Refraction of sound in the ocean 263
Refraction of sound in enclosed spaces 265

Chapter 13 Diffusion of Sound 267

The Perfectly Diffuse Sound Field 267
Evaluating Diffusion in a Room 268
Steady-state measurements 268
Decay Beats 269
Exponential Decay 270
Spatial Uniformity of Reverberation Time 271
Decay Shapes 275
Microphone Directivity 275
Room Shape 275
Splaying Room Surfaces 281
Nonrectangular rooms 281
Geometrical Irregularities 282
Absorbent in Patches 282
Concave Surfaces 286
Convex Surfaces: The Poly 286
Plane Surfaces 287