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Design of a Planar First-Order Loudspeaker Array for Global Active Noise Control | IEEE Journals & Magazine | IEEE Xplore

Design of a Planar First-Order Loudspeaker Array for Global Active Noise Control


Abstract:

This paper proposes a method to design a planar first-order loudspeaker array structure for global active noise control. Compared with the traditional spherical loudspeak...Show More

Abstract:

This paper proposes a method to design a planar first-order loudspeaker array structure for global active noise control. Compared with the traditional spherical loudspeaker array, the planar array provides a practical design with flexible source locations. The planar array is capable of achieving global noise control, provided that the loudspeakers have general variable first-order responses in elevation. On x-y plane, we use spherical harmonics to analyze the required first-order loudspeakers consisting of monopole and tangential dipole components. By exploiting the properties of the associated Legendre functions and its derivative, we can divide the primary soundfield into even harmonics controlled by the monopole component, and odd harmonics controlled by the dipole component. Through the appropriate choice of radii of circles, we avoid the ill-conditioning problem of matrix inversion and derive a robust solution for loudspeaker weights to suppress the primary noise field. Besides, we use the closely-located monopole pairs, instead of the ideal general first-order loudspeakers, to design an alternative planar array for practical implementation. As an illustration, we use several simulation examples to validate the performance of the two proposed planar loudspeaker arrays.
Page(s): 2240 - 2250
Date of Publication: 03 August 2018

ISSN Information:

Funding Agency:

Author image of Bing Bu
Speech and Audio Signal Processing Laboratory, Faculty of Information Technology, Beijing University of Technology, Beijing, China
Bing Bu received the B.S. degree in electronic and information engineering from Beijing University of Technology, Beijing, China, in 2011. He is currently working toward the Ph.D. degree with the Faculty of Information Technology, Beijing University of Technology, Beijing, China.
From October 2014 to October 2015, he was a Visiting Ph.D. Student with the Applied Signal Processing Group, the Australian National Universit...Show More
Bing Bu received the B.S. degree in electronic and information engineering from Beijing University of Technology, Beijing, China, in 2011. He is currently working toward the Ph.D. degree with the Faculty of Information Technology, Beijing University of Technology, Beijing, China.
From October 2014 to October 2015, he was a Visiting Ph.D. Student with the Applied Signal Processing Group, the Australian National Universit...View more
Author image of Chang-chun Bao
Speech and Audio Signal Processing Laboratory, Faculty of Information Technology, Beijing University of Technology, Beijing, China
Chang-chun Bao (M’98–SM’13) received the B.S. degree in telecommunication engineering from Chang Chun Institute of Posts and Telecommunications, the M.S. and Ph.D. degrees in communication and electronic system from JiLin University of Technology in 1987, 1992, and 1995, respectively.
From December 1995 to November 1997, he was a Postdoctoral Research Fellow and an Associate Professor with the School of Communication E...Show More
Chang-chun Bao (M’98–SM’13) received the B.S. degree in telecommunication engineering from Chang Chun Institute of Posts and Telecommunications, the M.S. and Ph.D. degrees in communication and electronic system from JiLin University of Technology in 1987, 1992, and 1995, respectively.
From December 1995 to November 1997, he was a Postdoctoral Research Fellow and an Associate Professor with the School of Communication E...View more
Author image of Mao-shen Jia
Speech and Audio Signal Processing Laboratory, Faculty of Information Technology, Beijing University of Technology, Beijing, China
Maoshen Jia (M’13–SM’15) received the B.E. degree in electronic information engineering from Hebei University, China, in 2005, and the Ph.D. degree in electronic science and technology from Beijing University of Technology, China, in 2010. He is currently an Associate Professor with the Faculty of Information Technology, Beijing University of Technology, Beijing, China. His current research interests include spatial a...Show More
Maoshen Jia (M’13–SM’15) received the B.E. degree in electronic information engineering from Hebei University, China, in 2005, and the Ph.D. degree in electronic science and technology from Beijing University of Technology, China, in 2010. He is currently an Associate Professor with the Faculty of Information Technology, Beijing University of Technology, Beijing, China. His current research interests include spatial a...View more

I. Introduction

Acoustic noise problems are becoming increasingly ubiquitous in industry and daily life. The methods to acoustic noise control can be broadly grouped into two categories: passive methods and active noise control (ANC). The former applies the acoustic insulation materials to produce a modest attenuation over a broadband frequency range [1], [2]. However, since the low-frequency noise possesses strong penetrating capability, the acoustic insulation is relatively ineffective and costly. By contrast, ANC attempts to introduce the anti-noise wave through an appropriate array of secondary sources to reduce the primary (unwanted) noise levels, based on the principle of superposition [3]–[5]. The ANC systems have been used in many different applications, where the noise fields are dominated by the low frequencies, such as engine noise in automobile and mechanical vibration in manufacturing.

Author image of Bing Bu
Speech and Audio Signal Processing Laboratory, Faculty of Information Technology, Beijing University of Technology, Beijing, China
Bing Bu received the B.S. degree in electronic and information engineering from Beijing University of Technology, Beijing, China, in 2011. He is currently working toward the Ph.D. degree with the Faculty of Information Technology, Beijing University of Technology, Beijing, China.
From October 2014 to October 2015, he was a Visiting Ph.D. Student with the Applied Signal Processing Group, the Australian National University, Australia. His research interests include spatial sound reproduction and spatial noise cancelation.
Bing Bu received the B.S. degree in electronic and information engineering from Beijing University of Technology, Beijing, China, in 2011. He is currently working toward the Ph.D. degree with the Faculty of Information Technology, Beijing University of Technology, Beijing, China.
From October 2014 to October 2015, he was a Visiting Ph.D. Student with the Applied Signal Processing Group, the Australian National University, Australia. His research interests include spatial sound reproduction and spatial noise cancelation.View more
Author image of Chang-chun Bao
Speech and Audio Signal Processing Laboratory, Faculty of Information Technology, Beijing University of Technology, Beijing, China
Chang-chun Bao (M’98–SM’13) received the B.S. degree in telecommunication engineering from Chang Chun Institute of Posts and Telecommunications, the M.S. and Ph.D. degrees in communication and electronic system from JiLin University of Technology in 1987, 1992, and 1995, respectively.
From December 1995 to November 1997, he was a Postdoctoral Research Fellow and an Associate Professor with the School of Communication Engineering, Xidian University. He joined Beijing University of Technology as an Associate Professor in November 1997, and was promoted to a Professor from July 1999 in the School of Electronic Information and Control Engineering. From July to September 1998, he was a Senior Researcher with the Digital System Technology Lab, Radio Products Research Group, Land Mobile Products Sector Motorola, Florida, USA. From March to August 2004, he was a Visiting Professor with the University of Wollongong. From January to February 2014, he was a Senior Visiting Fellow with Victoria University of Wellington. His research interests include speech and audio signal processing, speech coding, speech enhancement, speech transcoding, audio coding, audio enhancement, bandwidth extending for speech and audio signals, and 3-D audio signal processing. He has authored or coauthored the book Principles of Digital Speech Coding (Xian, China: Xidian University Press, 2007). He is the author or coauthor of more than 290 papers in journals and conferences and holds nine patents. He was an Associate Editor for the Journal on Communications, and currently an Editor for Signal Processing and Journal of Data Acquisition and Processing.
Dr. Bao is a Board and Senior Member of Chinese Institute of Electronics (CIE), a Board Member of the Acoustical Society of China, a Board Member of Signal Processing Academy of CIE, a Senior Member of IEEE Signal Processing Society, a member of International Speech Communication Association, Chair of APSIPA SLA TC (2015–2016), and Candidate Chair of National Conference on Man–Machine Speech Communication-Standing Committee in China.
Chang-chun Bao (M’98–SM’13) received the B.S. degree in telecommunication engineering from Chang Chun Institute of Posts and Telecommunications, the M.S. and Ph.D. degrees in communication and electronic system from JiLin University of Technology in 1987, 1992, and 1995, respectively.
From December 1995 to November 1997, he was a Postdoctoral Research Fellow and an Associate Professor with the School of Communication Engineering, Xidian University. He joined Beijing University of Technology as an Associate Professor in November 1997, and was promoted to a Professor from July 1999 in the School of Electronic Information and Control Engineering. From July to September 1998, he was a Senior Researcher with the Digital System Technology Lab, Radio Products Research Group, Land Mobile Products Sector Motorola, Florida, USA. From March to August 2004, he was a Visiting Professor with the University of Wollongong. From January to February 2014, he was a Senior Visiting Fellow with Victoria University of Wellington. His research interests include speech and audio signal processing, speech coding, speech enhancement, speech transcoding, audio coding, audio enhancement, bandwidth extending for speech and audio signals, and 3-D audio signal processing. He has authored or coauthored the book Principles of Digital Speech Coding (Xian, China: Xidian University Press, 2007). He is the author or coauthor of more than 290 papers in journals and conferences and holds nine patents. He was an Associate Editor for the Journal on Communications, and currently an Editor for Signal Processing and Journal of Data Acquisition and Processing.
Dr. Bao is a Board and Senior Member of Chinese Institute of Electronics (CIE), a Board Member of the Acoustical Society of China, a Board Member of Signal Processing Academy of CIE, a Senior Member of IEEE Signal Processing Society, a member of International Speech Communication Association, Chair of APSIPA SLA TC (2015–2016), and Candidate Chair of National Conference on Man–Machine Speech Communication-Standing Committee in China.View more
Author image of Mao-shen Jia
Speech and Audio Signal Processing Laboratory, Faculty of Information Technology, Beijing University of Technology, Beijing, China
Maoshen Jia (M’13–SM’15) received the B.E. degree in electronic information engineering from Hebei University, China, in 2005, and the Ph.D. degree in electronic science and technology from Beijing University of Technology, China, in 2010. He is currently an Associate Professor with the Faculty of Information Technology, Beijing University of Technology, Beijing, China. His current research interests include spatial audio signal processing, multichannel audio signal processing, and audio coding.
Maoshen Jia (M’13–SM’15) received the B.E. degree in electronic information engineering from Hebei University, China, in 2005, and the Ph.D. degree in electronic science and technology from Beijing University of Technology, China, in 2010. He is currently an Associate Professor with the Faculty of Information Technology, Beijing University of Technology, Beijing, China. His current research interests include spatial audio signal processing, multichannel audio signal processing, and audio coding.View more

References

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