Engineering noise control : theory and practice (3rd ed)

The third edition of E ngineering Noise Control has been thoroughly revised, updated and extended.

Each chapter contains new material, much of which is not available elsewhere.

The result is a comprehensive discussion of the theoretical principles and concepts of acoustics and noise control, a detailed discussion of the hearing mechanism, noise measuring instrumentation and techniques, noise criteria, sound source characterization and emission, outdoor sound propagation, sound in rooms, sound transmission through partitions, enclosure design, dissipative and reactive mufflers, vibration isolation, equipment sound power emission calculations and active noise cancellation.

Completely new material includes speed of sound calculations in media with non-rigid boundaries, analysis of beating, explanation of the non-damping and half-octave shift phenomena of human hearing, a discussion of energy density and its measurements, direct measurement of particle velocity, definitions of a range of measures used to quantify noise, hearing conversation program, addition of two more types of noise rating curves (NCB and RNC), a more extensive discussion of outdoor sound propagation including shadow