Real Time Implementation of Audio Source Localization on Blackfin ADSP-BF527 EZ-KIT

Автор: Mustapha Djeddou, Anis Redjimi, Abdesslam Bouyeda

Журнал: International Journal of Information Technology and Computer Science(IJITCS) @ijitcs

Статья в выпуске: 7 Vol. 4, 2012 года.

Бесплатный доступ

The present paper discusses the implementation of direction of arrival estimation using Incoherent Wideband Music algorithm. The direction of arrival of an audio source is estimated using two microphones plugged in “Line-in” input of a DSP development board. A solution to the problem of fluctuating estimation of the angle of arrival has been proposed. The solution consists on adding an audio activity detector before going on processing. Only voiced sound frames are considered as they fulfill the theoretical constraint of the used estimation technique. Furthermore, the latter operation is followed by integration over few frames. Only two sensors are used. For such a reduced number of sensors, the obtained results are promising.

Еще

Source localization, Incoherent MUSIC, Real time implementation, Blackfin DSP

Короткий адрес: https://sciup.org/15011711

IDR: 15011711

Список литературы Real Time Implementation of Audio Source Localization on Blackfin ADSP-BF527 EZ-KIT

  • H. Krim and M. Viberg, “Two decades of array signal processing research : the parametric approach," IEEE Signal Process. Mag., vol. 13, no. 4, pp. 67-94, July 1996.
  • J. Capon, “High-resolution frequency-wavenumber spectrum analysis," Proc. IEEE, vol. 57, no. 8, pp. 1408-1418, Aug. 1969.
  • R. O. Schmidt, “Multiple emitter location and signal parameter estimation," IEEE Trans. Antennas Propagation, vol. 34, no. 3, pp. 276-280, Mar. 1986.
  • S. S. Reddi, “Multiple source location—a digital approach," IEEE Trans. Aerospace Electron. Syst., vol. AES-15, no. 1, pp. 95-105, Jan. 1979.
  • M. I. Miller and D. R. Fuhrmann, “Maximum-likelihood narrow-band direction finding and the EM algorithm," IEEE Trans. Acoustics, Speech, Signal Process., vol. 38, no. 9, pp. 1560-1577, Sep. 1990.
  • W. Wang, V. Srinivasan, B. Wang, and K.-C. Chua, “Coverage for target localization in wireless sensor networks," IEEE Trans. Wireless Commun., vol. 7, no. 2, pp. 667-676, Feb. 2008.
  • L. Xiao, L. J. Greenstein, and N. B. Mandayam, “Sensor-assisted localization in cellular systems," IEEE Trans. Wireless Commun., vol. 6, no. 12, pp. 4244-4248, Dec. 2007.
  • A. Boukerche, H. A. B. Oliveira, E. F. Nakamura, and A. A. F. Loureiro, “Localization systems for wireless sensor networks," IEEE Trans. Wireless Commun., vol. 6, no. 6, pp. 6-12, Dec. 2007.
  • M. Wax, T. J. Shan, and T. Kailath. "Spatio-temporal spectral analysis by eigenstructure methods," IEEE Trans. Acoust., Speech, Signal Processing, Vol. ASSP-32, pp. 817-827, Aug 1984.
  • T. Pham, M. Fong, "Real-time implementation of MUSIC for wideband acoustic detection and tracking," Proceedings of SPIE, vol. 3069, pp. 250-256, 1997.
  • T. Pham and B. M. Sadler, “Wideband Array Processing Algorithms for Acoustic Tracking of Ground Vehicles,” ARL Technical Report, Adelphi, MD, 1997.
  • H. Wang and M. Kaveh, "Coherent signal subspace processing for detection and estimation of angle of arrival of multiple wideband sources," IEEE Trans. Acoust., Speech, Signal Processing, Vol. ASSP-33, pp. 823-831, Aug. 1985.
  • G. Bienvenu, "Eigensystem properties of the sampled space correlation matrix," Proc. IEEE, ICASSP, Boston MA, 1983, pp. 332-335.
  • K. M. Buckley and L. J. Griffiths, "Eigenstructure based broadband source location estimation," in Proc. IEEE ICASSP, Tokyo, Japan, 1986, pp. 1869-1872.
  • Y. Grenier, "Wideband source location through frequency-dependent modeling," IEEE Trans. Signal Processing, Vol. 42, pp. 1087-1096, May 1994.
  • G. Su and M. Morf, "Modal decomposition signal subspace algorithms," IEEE Trans. Acoust, Speech, Signal Processing, Vol. ASSP-34, pp 585-602, June 1986.
  • M. A. Doron, A. J. Weiss, and H. Messer, "Maximum likelihood direction finding of wideband sources," IEEE Trans. Signal Processing, vol. 41, pp. 411-414, Jan 1993.
  • Analog Devices “ADSP-BF527 EZ KITE LITE Evaluation manual”, Revision 1.6 Mars 2010.
  • Analog Devices “VisualDSP++ 5.0, C/C++ compiler and library manual for Blackfin processor”, Revision 5.4, January 2011.
  • D. J. Katz, R. Gentile “Embedded Media processing”, Linacre House, Jordan Hill, Oxford OX2 8DP, UK 2006.
  • R.G. Bachu, S. Kopparthi, B. Adapa, B.D. Barkana “Separation of Voiced and Unvoiced using Zero crossing rate and Energy of the Speech Signal” Electrical Engineering Department, School of Engineering, University of Bridgeport.
  • T. Pham and B. M. Sadler, “Aeroacoustic wideband array processing for detection and tracking of ground vehicles,” 130th Meeting of the Acoustic Society of America, St. Louis, MI, JASA vol. 98, no. 5, pt. 2, p. 2969, 1995.
  • A. K. Saxena “Wideband Audio Source Localization using Microphone Array and MUSIC Algorithm”, Faculty of Engineering and Computer Science. Department of Information and Electrical Engineering of the University of Applied Sciences Hamburg, Mars 2009.
  • W. H. Press, S. A. Teukolsky, W. T. Vetterling, B. P. Flannery “Numerical recipes the art of scientific computing”, Cambridge university press, 2007.
  • Analog Devices, “ADI_T350MCQB01”, May 2007, www.analog.com.
Еще
Статья научная