Sound Visualization and Manipulation

Unique in addressing two different problems – soundvisualization and manipulation – in a unified way Advances in signal processing technology are enabling ever moreaccurate visualization of existing sound fields and preciselydefined sound field production. The idea of explaining both theproblem of sound visualization and the problem of the manipulationof sound within one book supports this inter-related area ofstudy. With rapid development of array technologies, it ispossible to do much in terms of visualization and manipulation,among other technologies involved with the spatial distribution ofsound. This book aims to explore various basic functions for thevisualization and manipulation and demonstrate to the reader howthese properties determine the quality of visualization andmanipulation. The first half of the book introduces some basic andgeneral concepts and theories and the second part of the bookexplains a number of techniques in sound visualization andmanipulation. It offers a unified presentation to two verydifferent topics - sound field visualization techniques based onmicrophone arrays, and techniques for generation of controlledsound fields using loudspeaker arrays. The authors emphasize thesimilarities between these two physical problems and between themathematical methods used for solving them. With extensive examples throughout the book, chapters include:Acoustic Wave Equation and its Basic Physical Measures, AcousticWave Equation and its Basic Physical Measures, Basic Theory ofSound Visualization, Acoustic Holography, Beamforming, Basic Theoryof Sound Manipulation, Sound Focusing, and Sound FieldReproduction. The first book to combine both the visualization andmanipulation of sound technologies in one comprehensive volume Presents the basic concepts using simple one dimensional casesand then extends the concept to three dimensional cases, enablingeasier understanding of the fundamental concepts through the use ofminimum mathematics Provides a solid understanding of associated physics as well asmathematical concepts for understanding the technologies,addressing diffraction problems in an integrated format by usingKirchhoff-Helmholtz integral equation Uses extensive examples demonstrating the benefits anddrawbacks of various applications, including beamforming andacoustic holography A valuable resource forpost/graduate students, acousticengineers, audio and noise control system developers