Acoustic Waves Generated by Parametric Array Loudspeakers - Hardcover

Zhong, Jiaxin; Qiu, Xiaojun

 
9781032408521: Acoustic Waves Generated by Parametric Array Loudspeakers
Hardcover
ISBN 10: 1032408529 ISBN 13: 9781032408521
Publisher: CRC Press, 2024

Synopsis

Parametric array loudspeakers (PALs) are capable of generating highly directional audio beams from nonlinear interactions of intense airborne ultrasound waves. This unique capability holds great potential in audio engineering. This book systematically introduces the physical principles of acoustics waves generated by PALs, along with the commonly used and the state-of-the-art numerical models, such as the Westervelt model, the convolution directivity model, the Gaussian beam expansion method, and the spherical wave expansion method.

The properties of sound fields generated by PALs are analyzed. Also analyzed are various phenomena including the reflection of acoustics waves generated by PALs from a surface, transmission through a thin partition, scattering by a rigid sphere, and propagation in rooms. Furthermore, the steering and focusing of acoustics waves generated by PALs and potential applications of PALs in active sound control are investigated. Finally, the implementation issues of hardware, signal processing techniques, measurement, and safety are discussed.

The book is tailored to meet the needs of researchers in this field, as well as audio practitioners and acoustics engineers.

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About the Author

Jiaxin Zhong is a postdoctoral researcher in the Graduate Program in Acoustics at The Pennsylvania State University, USA

Xiaojun Qiu is a Professor at Nanjing University, China. He is a Fellow of the Audio Engineering Society and the International Institute of Acoustics and Vibration. He is author of An Introduction to Virtual Sound Barriers, and co-author of Active Control of Noise and Vibration, 2nd edition, also published by CRC Press.

"About this title" may belong to another edition of this title.

Publisher
CRC Press
Publication date
2024
Language
English
ISBN 10 
1032408529
ISBN 13 
9781032408521
Binding
Hardcover
Edition number
1
Number of pages
384