DocumentCode
1161195
Title
Extension of the signal subspace speech enhancement approach to colored noise
Author
Lev-Ari, Hanoch ; Ephraim, Yariv
Author_Institution
Dept. of Electr. & Comput. Eng., Northeastern Univ., Boston, MA, USA
Volume
10
Issue
4
fYear
2003
fDate
4/1/2003 12:00:00 AM
Firstpage
104
Lastpage
106
Abstract
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.
Keywords
random noise; spectral-domain analysis; speech enhancement; time-domain analysis; average signal distortion power; colored-noise processes; linear spectral-domain-constrained estimator; linear time-domain-constrained estimator; residual noise power; signal subspace approach; speech enhancement; whitening approach; Colored noise; Covariance matrix; Distortion; Equations; Karhunen-Loeve transforms; Signal design; Signal processing; Speech enhancement; Vectors; White noise;
fLanguage
English
Journal_Title
Signal Processing Letters, IEEE
Publisher
ieee
ISSN
1070-9908
Type
jour
DOI
10.1109/LSP.2003.808544
Filename
1186765
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