Spectrum warping based on sub-glottal resonances in speaker-independent speech recognition |
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Authors: | HOU Limin HUANG Zhenhua XIE Juanmin |
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Affiliation: | HOU Limin HUANG Zhenhua XIE Juanmin (School of Communication and Information Engineering,Shanghai University of China Shanghai 200072) |
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Abstract: | To reduce degradation in speech recognition due to varied characteristics of different speakers,a method of perceptual frequency warping based on subglottal resonances for speaker normalization is proposed.The warping factor is extracted from the second subglottal resonance using acoustic coupling between subglottis and vocal tract.The second subglottal resonance is independent of the speech content,which reflects the speaker characteristics more than the third formant.The perceptual minimum variation disto... |
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