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| Feature | Brief description | Feature | Brief description |
|
| aF0 | Basic pitch of A | oPPQ | Smoothing value around JITA of O |
| aJITA | Mean ratio of change in pitch period of A | oF60_120_240_480 | (energy of 60~120 Hz)/(energy of 240~480 Hz) of O |
| aJITT | Percentage of JITA value of A | oF240_480_960_1920 | (energy of 240~480 Hz)/(energy of 960~1920 Hz) of O |
| aPPQ | Smoothing value around JITA of A | oF60_120_oF960_1920 | (energy of 60~120 Hz)/(energy of 960~1920 Hz) of O |
| aF60_120_F240_480 | (energy of 60~120 Hz)/(energy of 240~480 Hz) of A | oF1 | Formant of first in 4 frequency periods of O |
| aF240_480_960_1920 | (energy of 240~480 Hz)/(energy of 960~1920 Hz) of A | oF2 | Formant of second in 4 frequency periods of O |
| aF60_120_960_1920 | (energy of 60~120 Hz)/(energy of 960~1920 Hz) of A | oF2_F1 | Difference of frequencies (oF2-F1) |
| aF1 | Formant of first in 4 frequency periods of A | uF0 | Basic pitch of U |
| aF2 | Formant of second in 4 frequency periods of A | uJITA | Mean ratio of change in pitch period of U |
| aF2_F1 | aF2/F1 | uJITT | Percentage of JITA value of U |
| eF0 | Basic pitch of E | uPPQ | Smoothing value around JITA of U |
| eJITA | Mean ratio of change in pitch period of E | uF60_120_240_480 | (energy of 60~120 Hz)/(energy of 240~480 Hz) of U |
| eJITT | Percentage of JITA value of E | uF240_480_960_1920 | (energy of 240~480 Hz)/(energy of 960~1920 Hz) of U |
| ePPQ | Smoothing value around JITA of E | uF60_120_960_1920 | (energy of 60~120 Hz)/(energy of 960~1920 Hz) of U |
| eF60_120_240_480 | (energy of 60~120 Hz)/(energy of 240~480 Hz) of E | uF1 | Formant of first in 4 frequency periods of U |
| eF240_480_960_1920 | (energy of 240~480 Hz)/(energy of 960~1920 Hz) of E | uF2 | Formant of second in 4 frequency periods of U |
| eF60_120_960_1920 | (energy of 60~120 Hz)/(energy of 960~1920 Hz) of E | uF2_F1 | Difference of frequencies (uF2-F1) |
| eF1 | Formant of first in 4 frequency periods of E | iF0_aF0 | Difference of frequencies (iF0-aF0) |
| eF2 | Formant of second in 4 frequency periods of E | uF0_oF0 | Difference of frequencies (uF0-oF0) |
| eF2_F1 | Difference of frequencies (eF2-F1) | aMFCC4 | The terms of Mel frequency cepstral coefficients of A |
| iF0 | Basic pitch of I | eMFCC4 | The terms of Mel frequency cepstral coefficients of E |
| iJITA | Mean ratio of change in pitch period of I | iMFCC4 | The terms of Mel frequency cepstral coefficients of I |
| iJITT | Percentage of JITA value of I | oMFCC4 | The terms of Mel frequency cepstral coefficients of O |
| iPPQ | Smoothing value around JITA of I | uMFCC4 | The terms of Mel frequency cepstral coefficients of U |
| iF60_120_240_480 | (energy of 60~120 Hz)/(energy of 240~480 Hz) of I | CORR | Pearson correlation coefficients between F0 and intensity |
| iF240_480_960_1920 | (energy of 240~480 Hz)/(energy of 960~1920 Hz) of I | P50 | 50th percentile of F0 |
| iF60_120_960_1920 | (energy of 60~120 Hz)/(energy of 960~1920 Hz) of I | I50 | 50th percentile of intensity |
| iF1 | Formant of first in 4 frequency periods of I | SF0 | Mean pitch of sentence |
| iF2 | Formant of second in 4 frequency periods of I | SSTD | Standard deviation of mean pitch of sentence |
| iF2_F1 | Difference of frequencies (iF2-F1) | SITS | Intensity average |
| oF0 | Basic pitch of O | SISTD | Standard deviation of intensity |
| oJITA | Mean ratio of change in pitch period of O | SSPD | Time to read one sentence |
| oJITT | Percentage of JITA value of O | Total | 65 |
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