The third edition of Engineering 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. The book is an excellent text for advanced undergraduate or graduate students of acoustic and noise control, and it also contains essential information and prediction techniques that make it an invaluable resource for the practitioner.Figure 3.6 A schematic representation of the elements of a sound level meter. Key: 1, microphone; 2, pre-amplifier; ... the input amplifier is not over driven. Subsequently, if the filter circuit is introduced, only the gain of the output amplifier wouldanbsp;...
|Title||:||Engineering Noise Control|
|Author||:||David A. Bies, Colin H. Hansen|
|Publisher||:||CRC Press - 2003-07-31|