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CHAPTER 1

Audio and Acoustics

CHAPTER CONTENTS

A Vibrating Source

Characteristics of a Sound Wave

How Sound Travels in Air

Simple and Complex Sounds

Frequency Spectra of Repetitive Sounds

Frequency Spectra of Non-Repetitive Sounds

Sound in Electrical Form

Displaying the Characteristics of a Sound Wave

Sound Power and Sound Pressure

Free and Reverberant Fields

Recommended Further Reading

This chapter offers an introduction to some of the basic principles of audio and acoustics, such as the nature of sound in the air and in electrical form, and some units, measurements, and laws that are useful for understanding explanations in the rest of the book.

A Vibrating Source

Sound is produced when an object (the ...

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