Table 6 Best-fitted multivariate distribution based on the energy test for LPC 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 = 0.50 | MGLD, p = 0.25 | MGLD, p = 0.25 | MGD | MGLD, p = 0.25 | MGLD, p = 0.50 | MGD | MGLD, p = 0.25 |
0.07 | 0.08 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.02 | |
Vowel | MGLD, p = 0.25 | MGLD, p = 0.50 | MGLD, p = 0.25 | MGLD, p = 0.50 | MGLD, p = 0.25 | MGD | MGLD, p = 0.25 | MGD |
0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.00 | 0.00 | |
Nasal | MGLD, p = 0.25 | MGD | MGLD, p = 0.25 | MGD | MGD | MGLD, p = 0.25 | MGD | MGLD, p = 0.25 |
0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 | |
Fricative | MGLD, p = 0.25 | MGD | MGLD, p = 0.25 | MGD | MGLD, p = 0.25 | MGLD, p = 0.50 | MGD | CLD |
0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.03 | |
Stop | MGLD, p = 0.25 | MGLD, p = 0.25 | MGLD, p = 0.25 | MGLD, p = 0.50 | MGLD, p = 0.25 | MGD | MGD | MGLD, p = 0.25 |
0.02 | 0.02 | 0.01 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | |