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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