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Table 4 Best-fitted multivariate distribution in the sense of energy test for different features and frame lengths of speech signals

From: Speech signal modeling using multivariate distributions

Feature (domain) Frame length
20 ms 30 ms 100 ms 500 ms
ADFT CLD CLD CLD MGLD, p = 0.50
LPC MGLD, p = 0.25 MGLD, p = 0.25 MGLD, p = 0.25 MGD
T MLD MLD MLD MLD
MFCC MGD MGD MGD MGD
RDFT MLD MLD MLD MGLD, p = 0.75
IDFT MLD MLD MLD MGLD, p = 0.75
DCT MLD MLD MLD MGLD, p = 0.25