Binaural active noise control using parametric array loudspeakers

Abstract This paper reports the binaural active noise control (ANC) system developed to deal with factory noise. The control points are located in the vicinity of the left and right ears of a worker sitting along the production line. Due to the complicated safety requirements in the factory, secondary sources and error microphones are not allowed to be placed near the worker. Therefore, the proposed ANC system employs the feedforward structure and adopts the parametric array loudspeakers (PALs) as the secondary sources. The PAL is a type of directional loudspeaker that generates a much narrower sound field as compared to the conventional loudspeaker. Once the proposed ANC system has been trained offline, the error microphones can be removed. The performance of the binaural ANC system is successfully demonstrated based on a digital signal processor (DSP) implementation.

[1]  Neeraj Magotra,et al.  Comparative study of wideband single reference active noise cancellation algorithms on a fixed-point DSP , 2003, 2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03)..

[2]  Sen M. Kuo,et al.  Active noise control: a tutorial review , 1999, Proc. IEEE.

[3]  Yoshio Iwata,et al.  Active Noise Control Using High-Directional Parametric Loudspeaker , 2011 .

[4]  Colin H. Hansen,et al.  Investigation into the feasibility of using a parametric array control source in an active noise control system , 2005 .

[5]  M. Yoneyama,et al.  The audio spotlight: An application of nonlinear interaction of sound waves to a new type of loudspeaker design , 1983 .

[6]  S.J. Elliott,et al.  Active noise control , 1993, IEEE Signal Processing Magazine.

[7]  Nobuo Tanaka,et al.  Mathematically trivial control of sound using a parametric beam focusing source. , 2011, The Journal of the Acoustical Society of America.

[8]  Colin H. Hansen,et al.  Feasibility study of localised active noise control using an audio spotlight and virtual sensors , 2006 .

[9]  Issa M. S. Panahi,et al.  Real-time remote cancellation of multi-tones in an extended acoustic cavity using directional ultrasonic loudspeaker , 2014, IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society.

[10]  Chuang Shi,et al.  Multi-channel active noise control using parametric array loudspeakers , 2014, Signal and Information Processing Association Annual Summit and Conference (APSIPA), 2014 Asia-Pacific.

[11]  Woon-Seng Gan,et al.  An overview of directivity control methods of the parametric array loudspeaker , 2014, APSIPA Transactions on Signal and Information Processing.

[12]  Stephen J. Elliott,et al.  The behavior of a multiple channel active control system , 1992, IEEE Trans. Signal Process..

[13]  Roshun Paurobally,et al.  Active Noise Control in Workplaces , 2016 .

[14]  Woon-Seng Gan,et al.  Recent advances on active noise control: open issues and innovative applications , 2012, APSIPA Transactions on Signal and Information Processing.

[15]  Stephen J. Elliott,et al.  A multiple error LMS algorithm and its application to the active control of sound and vibration , 1987, IEEE Trans. Acoust. Speech Signal Process..

[16]  Nobuo Tanaka,et al.  Active Noise Control Using Acoustic Wave Reflection of a Parametric Loudspeaker , 2011 .

[17]  Nobuo Tanaka,et al.  Active noise control using a steerable parametric array loudspeaker. , 2010, The Journal of the Acoustical Society of America.