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Extension of the signal subspace speech enhancement approach to colored noise

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2 Author(s)
H. Lev-Ari ; Dept. of Electr. & Comput. Eng., Northeastern Univ., Boston, MA, USA ; Y. Ephraim

The signal subspace approach for speech enhancement is extended to colored-noise processes. Explicit forms for the linear time-domain- and spectral-domain-constrained estimators are presented. These estimators minimize the average signal distortion power for given constraints on the residual noise power in the time and spectral domains, respectively. Equivalent implementations of the two estimators using the whitening approach are described.

Published in:

IEEE Signal Processing Letters  (Volume:10 ,  Issue: 4 )