intersection method for talker localization 7 the DOAs from these sub arrays

Intersection method for talker localization 7 the

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intersection method for talker localization [7], the DOAs from these sub-arrays could be combined to yield location estimates. Such an approach is still an improvement over breaking the array into microphone pairs. Using these simplifying array geometries in conjunction with more efficient searching techniques could make SRP-PHAT the basis for an efficient and practical source-localization algorithm. The significant improvement of SRP-PHAT over GCC-PHAT, which was demonstrated in the experiments of this thesis, motivates the development of a computationally efficient form of SRP-PHAT or a similar method that yields the same performance by fully exploiting all the microphones in a given array-system. 104
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Bibliography [1] J. E. Adcock, J. H. DiBiase, M. S. Brandstein and H. F. Silverman. Practical issues in the use of a frequency-domain delay estimator for microphone-array applications. 128 th Meeting of the Acoustical Society of America , November 1994. [2] J. E. Adcock, Y. Gotoh, D. J. Mashao and H. F. Silverman. Microphone-array speech recognition via incremental MAP training. In Proceeding of ICASSP96 , Atlanta, GA, May 1996. [3] J. B. Allen and D. A. Berkely. Image method for efficiently simulating small-room acoustics. J. Acoust. Soc. Amer. , 65(4):943-949, 1979. [4] R. Bouquin-Jeanns, A. A. Azirani and G. Faucon. Enhancement of speech degraded by coherent and incoherent noise using a cross-spectral estimator. IEEE Trans. Speech and Audio Processing , vol. 5, no. 5, September 1997. [5] M. S. Brandstein. Informal presentation. International Workshop on Microphone-Array Systems: Theory and Practice , Brown University, Providence, RI, October 1992. [6] M. S. Brandstein, J. E. Adcock and H. F. Silverman. Method and Apparatus for Source Location Estimation from Microphone-Array Time-Delay Estimates , US Patent No. 5737431, issued April 7, 1998. [7] M. S. Brandstein, J. E. Adcock and H. F. Silverman. A closed-form location estimator for use with room environment microphone arrays. IEEE Transaction on Speech and Audio Processing , 5(1):45- 50, January 1997. [8] M. S. Brandstein, J. E. Adcock and H. F. Silverman. A closed-form method for finding source locations from microphone-array time-delay estimates. In Proceedings of ICASSP95 , pages 3019- 3022, IEEE, May 1995. [9] M. S. Brandstein, J. E. Adcock and H. F. Silverman. A localization-error based method for microphone-array design. In Proceedings of ICASSP96 , IEEE, May 1996. [10] M. S. Brandstein, J. E. Adcock, and H. F. Silverman. Microphone array localization error estimation with application to sensor placement. J. Acoust. Soc. Amer. , 99(6):3807-3816, June 1996. 105
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[11] M. S. Brandstein, J. E. Adcock and H. F. Silverman. A practical time-delay estimator for localizing speech sources with a microphone array. Computer, Speech and Language , Volume 9, pages 153- 169, September 1995. [12] M. S. Brandstein. A Framework for Speech Source Localization Using Sensor Arrays . Ph. D. thesis, Brown University, Providence, RI, May 1995.
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