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- W1969724207 abstract "Acoustic feature extraction from speech is a fundamental part in both automatic speech recognition and automatic speaker recognition. Mel-frequency cepstral coefficients (MFCCs) are widely used in both of the above two research directions. A new feature extraction technique named perceptual MVDR-based cepstral coefficients (PMCCs) has been demonstrated to perform superior in automatic speech recognition. Unlike the MFCCs in which a mel-scaled filterbank is applied to the short term FFT spectrum to obtain a perceptually meaningful smoothed gross spectrum, PMCCs use the Minimum Variance Distortionless Response (MVDR) all-pole model to represent the spectral envelope of the perceptual spectrum. In this study, we extract PMCCs and model them using Gaussian Mixture Models (GMMs) for speaker recognition. In order to compensate for speaker and channel variability effects, joint factor analysis (JFA) is used. The experiments are carried out on the core conditions of NIST 2008 speaker recognition evaluation data. The experimental results indicate that the systems based on PMCCs can achieve comparable performance to those based on MFCCs. Besides, the fusion of the two kinds of systems can make significant performance improvement compared to the MFCCs system alone." @default.
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- W1969724207 date "2010-10-01" @default.
- W1969724207 modified "2023-09-23" @default.
- W1969724207 title "Perceptual MVDR-based cepstral coefficients (PMCCs) for speaker recognition" @default.
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- W1969724207 doi "https://doi.org/10.1109/icosp.2010.5656906" @default.
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