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Table 5 Best-fitted multivariate distribution based on the energy test for ADFT 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

MGLD, p = 0.75

MGLD, p = 0.50

MGLD, p = 0.75

MGLD, p = 0.50

MGLD, p = 0.50

MGLD, p = 0.25

CGevD

CGD

0.05

0.06

0.03

0.04

0.02

0.02

0.00

0.01

Vowel

MGLD, p = 0.75

MGLD, p = 0.50

MGLD, p = 0.75

MGLD, p = 0.50

CGevD

MGLD, p = 0.75

MGLD, p = 0.50

MGLD, p = 0.25

0.04

0.05

0.04

0.05

0.03

0.04

0.02

0.02

Nasal

MGLD, p = 0.50

CGevD

MGLD, p = 0.50

MGLD, p = 0.75

MGLD, p = 0.25

MGD

MGLD, p = 0.25

MGLD, p = 0.50

0.04

0.04

0.02

0.02

0.03

0.03

0.00

0.00

Fricative

MGLD, p = 0.75

CGD

MGLD, p = 0.50

MGLD, p = 0.25

MGLD, p = 0.50

MGLD, p = 0.25

MGD

MGLD, p = 0.25

0.04

0.04

0.02

0.02

0.03

0.03

0.00

0.00

Stop

CGD

CGevD

CGD

CGevD

MGLD, p = 0.50

MGLD, p = 0.75

MGLD, p = 0.25

MGLD, p = 0.50

0.06

0.08

0.07

0.09

0.03

0.03

0.00

0.00