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KMID : 0917520030100020077
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Journal of Speech Sciences
2003 Volume.10 No. 2 p.77 ~ p.84
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Speech Enhancement Using Lip Information and SFM
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Baek Seong-Joon
Kim Jin-Young
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Abstract
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In this research, we seek the beginning of the speech and detect the stationary speech region using lip information. Performing running average of the estimated speech signal in the stationary region, we reduce the effect of musical noise which is inherent to the conventional MlMSE (Minimum Mean Square Error) speech enhancement algorithm. In addition to it, SFM (Spectral Flatness Measure) is incorporated to reduce the speech signal estimation error due to speaking habit and some lacking lip information. The proposed algorithm with Wiener filtering shows the superior performance to the conventional methods according to MOS (Mean Opinion Score) test.
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KEYWORD
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Speech Enahncement, Spectral Flatness Measure
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