Directional acoustic signal processor and method therefor

Details Directional acoustic signal processor and method therefor Directional acoustic signal processor and method therefor

1995-09-18

1999-12-14

Lee, Ping

Electrical audio signal processing systems and devices

Dereverberators

381 93, 379410, H04B 320

Patent

active

060027762

ABSTRACT:
Two or more microphones are mounted in an environment that contains an equal or lesser number of distinct sound sources. Acoustic energy from each source, with its attendant echoes and reverberation, impinges on each microphone. Using direction-of-arrival information, a first module attempts to extract the original source signals as if the acoustic environment were anechoic. Any residual crosstalk between the channels, which may be caused by echoes and reverberation, is removed by a second module. The first and second modules may be implemented using existing technology.

REFERENCES:
patent: 3500000 (1970-03-01), Kelly, Jr. et al.
patent: 4544926 (1985-10-01), Giuli
patent: 4750147 (1988-06-01), Roy et al.
patent: 4751738 (1988-06-01), Widrow et al.
patent: 5208786 (1993-05-01), Weinstein et al.
patent: 5315532 (1994-05-01), Comon
patent: 5371789 (1994-12-01), Hirano
patent: 5383164 (1995-01-01), Sejnowski et al.
patent: 5465302 (1995-11-01), Lazzari et al.
Jeffery C. Allen, "Advanced Beamforming Concepts: Source Localization Using the Bispectrum, Gabor Transform, Wigner-Ville Distribution, and Nonstationary Signal Representations," 25th Asilomar Conference on Signals, Systems, and Computers, vol. 2, 818-824, 1991.
Yeheskel Bar-Ness, "Broadband Interference Cancelation Using a Bootstrapped Approach," ICASSP '93 vol. III,, 372-375, 1993.
Zaka U. Bhatti and Steven Bibyk, "Adaptive Analog Circuits to Perform Signal Separation of Multidimensional Sensor Signals," IEEE International Conference on Systems Engineering, 391-394, Dayton, OH, Aug. 1-3, 1991.
Jean-Francois Cardoso, "Source Separation Using Higher Order Moments," ICASSP '89, 2109-2112, 1989.
Jean-Francois Cardoso, "Super-Symmetric Decomposition of the Fourth-Order Cumulant Tensor. Blind Identification of More Sources than Sensors," ICASSP '91, vol. V, 3109-3112, 1991.
Jean-Francois Cardoso, Adel Belouchrani, and Beate Leheld, "A New Composite Criterion for Adaptive and Iterative Blind Source Separation," ICASSP '94, vol. IV, revised version, pp. 1-4.
Marc H. Cohen, "Analog VLSI Implementation of an Auto-Adaptive Synthetic Neutral Network for Real-Time Separation of Independent Signal Sources," Master's Thesis, Johns Hopkins University, May 1991.
Pierre Comon, Christian Jutten, and Jeanny Herault, "Blind Separation of Sources, Part II: Problems [sic] Statement," Signal Processing 24, 11-20, 1991.
Abdulkadir Dinc and Yeheskel Bar-Ness, A Forward/Backward Bootstrapped Structure for Blind Separation of Signals in a Multi-Channel Dispersive Environment, ICASSP '94, III, 376-379.
K. Farrell, RJ. Mammone, and J.L. Flanagan, "Beamforming Microphone Arrays for Speech Enhancement," ICASSP '92, vol. 1, 285-288, 1992.
J.L. Flanagan, J.D. Johnson, R. Zahn, and G.W. Elko, "Computer-Steered Microphone Arrays for Sound Transduction in Large Rooms," Journal of the Acoustical Society of America, 78(5), pp. 1508-1518, 1985.
O.L. Frost III, "An algorithm for linearly constrained adaptive array processing," Proceedings of the IEEE, 60(8), pp. 926-935, Aug. 1972.
L.J. Griffiths and C.W. Jim, "An alternative approach to linearly constrained adaptive beamforming," IEEE Transactions on Antennas and Propagation, AP-30(1), pp. 27-34, Jan. 1982.
C.W.K. Gritton and D.W. Lin, "Echo Cancellation Algorithms," IEEE ASSP Magazine, Apr. 30-38, 1984.
J.Herault and C. Jutten, "Space or Time Adaptive Signal Processing by Neutral Network Models", AIP Conference Proceedings, pp. 206-211, Snowbird, Utah 1986.
C. Jutten, L. Nguyen Thi, E. Djikstra, E. Vittoz, and J. Caelen, "Blind Separation of Sources: An Algorithm for Separation of Convolutive Mixtures," Higher Order Statistics, 275-278, 1992.
J.L. Lacoume and P. Ruiz, "Separation of Independent Sources of Correlated Inputs," IEEE Trans. Signal Processing 40(12), Dec. 1992.
Richard F. Lyon, "A Computational Model of Binaural Localization and Separation," ICASSP '83, 319-327, 1983.
David K. Mellinger, "Event Formation and Separation in Musical Sound," Ph.D. Dissertation, Stanford University, Dec. 1991.
O.M. Mracek Mitchell, Carolyn A. Ross, and G.H. Yates, "Signal Processing for a Cocktail Party Effect," Journal of the Acoustical Society of America 50(2), pp. 656-660, 1971.
L. Molgedey and H.G. Schuster, "Separation of a Mixture of Independent Signal Using Time Delayed Correlations," Physical Review Letters 72(23), 3634-3637, Jun. 6, 1994.
Tatsuya Morita, "Separation of Mixed Voices by Acoustic Parameter Optimization," Electronics and Communications in Japan, Part 3: Fundamental Electronic Science 74(5), 30-38, 1991.
Montse Najar, Miguel A. Lagunas, and Ignasi Bonet, "Blind Wideband Source Separation," ICASSP '94, vol. IV, 65-68, 1994.
J. Naylor and J. Porter, "An Effective Speech Separation System Which Requires No A Priori Information," ICASSP '91, vol. II, 937-940, 1991.
Harry F. Olson, "Directional Microphones", Journal of the Audio Engineering Society, pp. 190-194, Oct., 1967.
Thomas W. Parsons, "Separation of Speech from Interferring Speech by Means of Harmonic Selection," J. Acoust. Soc. Am. 60(4), 911-918, 1976.
John C. Platt and Federico Faggin, "Networks for the Separation of Sources that are Superimposed and Delayed," NIPS '91, pp. 730-737, 1992.
Richard Roy, "ESPRIT--Estimation of Signal Parameters via Rotational Invariance Techniques," Ph.D. dissertation, Stanford University, Stanford, CA 1987.
R.O. Schmidt, "A Signal Subspace Approach to Multiple Emitter Location and Spectral Estimation," Ph.D. Dissertation, Stanford University, Stanford, CA 1981.
Hans Werner Strube, "Separation of Several Speakers Recorded by Two Microphones (Cocktail-Party Processing)," Signal Processing 3, 355-364, 1981.
Lang Tong, Ruey-wen Liu, Victor C. Soon, and Yih-Fang Huang, Indeterminacy and Identifiability of Blind Identification, IEEE Trans. Circuits and Systems 38(5), 499-509, May 1991.
Lang Tong, Yujiro Inouye, and Rueywen Liu, "Eigenstructure-Based Blind Identification if Independent Signals," ICASSP '91, 3329-3332, 1991.
Dirk Van Compernolle, "Adaptive Filter Structures for Enhancing Cocktail Party Speech from Multiple Microphone Recordings," 1989.
Dirk Van Compernolle, Weiya Ma, Fei Xie, and Marc Van Diest, "Speech Recognition in Noisy Environments with the Aid of Microphone Arrays," Speech Communication 9, 433-442, 1990.
Ch. von der Malsburg and W. Schneider, "A Neural Cocktail-Party Processor," Biological Cybernetics 54, 29-40, 1986.
Mitchel Weintraub, "The GRASP Sound Separation System," ICASSP '84, 18A.6.1-18A.6.4, 1984.
Product Spec. Sheet, "Bose Aviation Headset," Bose Corporation, Framingham, Mass.
Product Spec. Sheet, "Knowles CF 2949 Data Sheet," Knowles Electronics, Inc., Itasca, Ill.
Product Spec. Sheet, "NCT proACTIVE Series," Noise Cancellation Technologies, Inc., Stamford, Conn.
Product Spec. Sheet, "Sennheiser HDC 451 NoiseGard Mobile Headphone," Sennheiser Electronic Corporation, Old Lyme, Conn.
Jean-Francois Cardoso and Eric Moulines, "Minimum Contrast Estimation with Applications to Array Processing," ICASSP '93, vol. IV, 384-387, 1993.
Yves Grenier, "A Microphone Array for Car Environments," Speech Communication 12, 25-39, 1993.
J.J. Hopfield, "Olfactory Computation and Object Perception," Proc. Natl. Acad. Sci. USA 88, 6462-6466, Aug. 1991.
Yutaka Kaneda, "Sound Source Localization for Wide-Band Signals Under a Reverberant Condition," J. Acoust. Soc. Japan (E), 14(1), 47-48, 1993.
Miguel A. Lagunas and Alba Pages, "Multitone Tracking with Coupled EKFs and High Order Learning," ICASSP '92, vol. V, 153-156, 1992.
F. Laichi, T. Aboulnasr, and W. Steenaart, "A New Efficient Implementation of the AIFIR Echo Tail Canceller for ISDN Application," ICASSP '91, 1545-1548, 1991.
Eric Moulines and Jean-Francois Cardoso, "Direction Finding Algorithms Using Fourth Order Statistics. Asymptotic Performance Analysis," ICASSP '92, vol. II, 437-440, 1992.
Montse Najar, Miguel A. Lagunas, and Ana I. Perez-Neira, "Source Separation Based on Coupled Single DOA Estimation Processors," ICASSP '93, vol. IV, 336-339, 1993.
Patrick M. Peterson, Nathaniel I. Durlach, William M. Rabinowitz, and Patrick M. Zurek, "Multimicro

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