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Microphone Array with Minimum Mean-Square Error Short-Time Spectral Amplitude Estimator for Speech Enhancement

Hongseok KWON, Jongmok SON, Keunsung BAE

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Summary :

This paper describes a new speech enhancement system that employs a microphone array with post-processing based on minimum mean-square error short-time spectral amplitude (MMSE-STSA) estimator. To get more accurate MMSE-STSA estimator in a microphone array, modification and refinement procedure are carried out from each microphone output. Performance of the proposed system is compared with that of other methods using a microphone array. Noise removal experiments for white and pink noises demonstrate the superiority of the proposed speech enhancement system to others with a microphone array in average output SNRs and cepstral distance measures.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E87-A No.6 pp.1491-1494
Publication Date
2004/06/01
Publicized
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Type of Manuscript
Special Section LETTER (Special Section on Papers Selected from 2003 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC 2003))
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