PREFACE
The seventh section of this book deals with Acoustics and Sound Reinforcement, and the first two chapters come from Sound System Engineering by Don and Carolyn Davis. In this first chapter Don and Carolyn cover the complex subject of large-room acoustics, dealing with reverberation, flutter-echoes, and the reverberant and direct sound fields.
They begin by examining the issue of reverberation. In theoretical acoustics, much use is made of the concept of the free field, a space in which there are no reflections to complicate matters. The only way to set up a free field in practice is to put your sound source on a pole outdoors, well above ground level, or to put it in an anechoic chamber. In real-life indoor situations the reflections ...
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