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Table 8 Best-fitted multivariate distribution based on the energy test for MFCC coefficients of five phoneme classes in different frame lengths

From: Speech signal modeling using multivariate distributions

Phoneme class

Frame length

20 ms

30 ms

100 ms

500 ms

Semivowel/glide

MGD

MGLD, p = 0.25

MGD

MGLD, p = 0.25

MGD

MGLD, p = 0.25

MGD

MGLD, p = 0.25

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

Vowel

MGD

MGLD, p = 0.25

MGD

MGLD, p = 0.25

MGD

MGLD, p = 0.25

MGD

MGLD, p = 0.25

0.00

0.01

0.00

0.01

0.01

0.01

0.00

0.00

Nasal

MGD

MGLD, p = 0.25

MGD

MGLD, p = 0.25

MGD

MGLD, p = 0.25

MGLD, p = 0.75

MGLD, p = 0.50

0.00

0.01

0.01

0.01

0.00

0.00

0.00

0.01

Fricative

MGD

MGLD, p = 0.25

MGD

MGLD, p = 0.25

MGD

MGLD, p = 0.25

CLD

CLID

0.00

0.01

0.00

0.00

0.00

0.00

0.03

0.03

Stop

MGD

MGLD, p = 0.25

MGD

MGLD, p = 0.25

MGLD, p = 0.25

MGD

CLD

MGD

0.00

0.00

0.00

0.00

0.00

0.01

0.00

0.01