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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