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http://dx.doi.org/10.17661/jkiiect.2017.10.1.57

A Method of Designing Low-power Feedback Active Noise Control Filter for Headphones/Earphones  

Seo, Ji-ho (Department of Electrical and Electronic Engineering, Yonsei University)
Youn, Dae-Hee (Department of Electrical and Electronic Engineering, Yonsei University)
Park, Young-Cheol (Computer & Telecommunications Engineering Division, Yonsei University)
Publication Information
The Journal of Korea Institute of Information, Electronics, and Communication Technology / v.10, no.1, 2017 , pp. 57-65 More about this Journal
Abstract
This paper presented a method of designing low-power feedback active noise control filter optimized for headphones/earphones. Using constrained optimization, we obtained a high order FIR noise control filter to ensure reasonable noise attenuation performance at high sampling frequency environment. Then using infinite impulse response (IIR) approximation method called Balanced Model Truncation (BMT), we obtained a low order IIR noise control filter suitable for low-power digital signal processing system like headphones/earphones. For further performance improvement, we utilized frequency warping method so that we could obtain more accurately approximated IIR filter and we ensured system stability by reconstructing the low order IIR filter in form of cascaded second order IIR filters. ANC simulation with white noise and stability test verified that the proposed algorithm had superior attenuation performance and better robustness compared to the conventional algorithm.
Keywords
Balanced Model Truncation; Constrained optimization; Feedback Active noise control; Frequency warping; Headphone;
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  • Reference
1 Kuo, Sen M., and Dennis R. Morgan. "Active noise control: a tutorial review." Proceedings of the IEEE 87.6 (1999): 943-973.   DOI
2 Rafaely, Boaz, and Stephen J. Elliott. "H2/$H{\infty}$ active control of sound in a headrest: design and implementation." IEEE Transactions on control systems technology 7.1 (1999): 79-84.   DOI
3 B. Rafaely and S. J. Elloitt, "H2/$H{\infty}$ output feedback design for active control," ISVR, Univ. Southhampton, U.K., Tech. Memo 800, July 1996.
4 B. Beliczynski, I. Kale, and G. D. Cain, "Approximation of FIR by IIR digital filters: an algorithm based on balanced model reduction," IEEE Transactions on Signal Processing, vol. 4, no.3, pp. 532.542, 1992.
5 Ahfir, Maamar, Izzet Kale, and Daoud Berkani. "An Alternative Approach to the Balanced Model Truncation Algorithm for Acoustic Minimum-Phase Inverse Filters Order Reduction." ISRN Signal Processing 2011 (2011).
6 Alan V. Oppenheim, RonaldW. Schafer, with John R. Buck, "Discrete-time Signal Processing," Prentice Hall, 1989.
7 M. Karjalainen, A. Harma, U. K. Laine and J. Huopaniemi, "Warped filters and their audio applications," Applications of Signal Processing to Audio and Acoustics, 1997. 1997 IEEE ASSP Workshop on, New Paltz, NY, 1997, pp. 4 pp.-.