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Journal articles
Multitaper Estimation of Frequency-Warped Cepstra With Application to Speaker Verification
Abstract : Usually the mel-frequency cepstral coefficients are estimated either from a periodogram or from a windowed periodogram. We state a general estimator which also includes multitaper estimators.We propose approximations of the variance and bias of the estimate of each coefficient. By using Monte Carlo computations, we demonstrate that the approximations are accurate. Using the proposed formulas, the peak matched multitaper estimator is shown to have low mean square error (squared bias + variance) on speech-like processes. It is also shown to perform slightly better in the NIST 2006 speaker verification task as compared to the Hamming window conventionally used in this context.
Cited literature [14 references]
https://hal-ens-lyon.archives-ouvertes.fr/ensl-00475928
Contributor : Pierre Borgnat Connect in order to contact the contributor
Submitted on : Friday, April 23, 2010 - 1:07:05 PM
Last modification on : Wednesday, November 20, 2019 - 3:11:25 AM
Long-term archiving on: : Tuesday, September 28, 2010 - 12:49:06 PM
Contributor : Pierre Borgnat Connect in order to contact the contributor
Submitted on : Friday, April 23, 2010 - 1:07:05 PM
Last modification on : Wednesday, November 20, 2019 - 3:11:25 AM
Long-term archiving on: : Tuesday, September 28, 2010 - 12:49:06 PM
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manus_2col_rev.pdf
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