Acoustic Waves Generated by Parametric Array Loudspeakers

Jiaxin Zhong

ISBN 10: 1032408529 / ISBN 13: 9781032408521

Published by CRC Press, 2024

About this Item

nach der Bestellung gedruckt Neuware - Printed after ordering - Parametric array loudspeakers (PALs) are capable of generating highly directional audio beams from nonlinear interactions of intense airborne ultrasound waves. 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.

Seller Inventory # 9781032408521

Bibliographic Details

• Title: Acoustic Waves Generated by Parametric Array Loudspeakers
• Publisher: CRC Press
• Publication Date: 2024
• Language: English
• ISBN 10: 1032408529
• ISBN 13: 9781032408521
• Binding: Buch
• Condition: Neu
• Dimensions: 240W x 161H x 25D millimeters 240 millimeters width by 161 millimeters height by 25 millimeters depth
• Weight: 743 grams

About this title

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.

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.