Research Article
The Concept of Sasang Health Index and Constitution-Based Health Assessment: An Integrative Model with Computerized Four Diagnosis Methods
Table 4
Vocal variables with x ∈ [a, e, i, o, u].
| Vocal variable | Description |
| xF0 | Average fundamental frequency | xJITT | Jitter (cycle-to-cycle variation of fundamental frequency) | xRAP, xPPQ | Relative average perturbation and pitch perturbation quotient (frequency variation characteristics) | xSHIM | Shimmer (cycle-to-cycle variation of amplitude) | xAPQ | Amplitude perturbation quotient | xF1, xF2, and xF3 | 1st, 2nd, and 3rd formant frequencies | xBW1, xBW2 | Bandwidths of the 1st and 2nd formants | sDT | Duration of sentence utterance | sF10, sF50, and sF90 | Fundamental frequencies at the 10th, 50th, and 90th percentiles (sentence) | sFHL | Ratio of the frequency intervals between a high to the median and the median to a low fundamental frequency = (sF90 − sF50)/ (sF50 − sF10) |
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