O'Reilly logo

Acoustics: Sound Fields, Transducers and Vibration, 2nd Edition by Tim Mellow, Leo Beranek

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter One

Introduction and terminology

Abstract

This chapter begins with a short history of the development of acoustics from the time of Helmholtz and Lord Rayleigh to today's concert halls and cell phones. A visual picture of sound in air is presented to help the reader to understand the basic equations that follow. Vital to the acoustics field is an understanding of its terminology: sound pressure, density, speed and velocity, impedance, intensity, energy density, and levels. The reader is urged to carry the material of this chapter in mind as these concepts occur over and over in the subsequent chapters.

Keywords

Acoustics; Ambient pressure; Digital signal processor; Electroacoustic transducers; Impedance; Reverberation

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required