Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 1998.06a
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- Pages.599-602
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- 1998
Spectral subtraction based on speech state and masking effect
Abstract
In this paper, a speech enhancement method based on phonemic properties and masking effect is propsoed. It is a modified type of spectral subtraction wherein the spectral sharpening process is exploited in unvoiced state considering the phonemic properties. The masking threshold is used to remove the residual noise. The proposed spectral subtraction shows similar performance as that of the classical spectral subtraction method in view of the SNR. But by the prposed scheme, the unvoiced sound region is shown to exhibit relatively less signal distortion in the enhanced speech.
Keywords