Table 1.
The attributes of biomedical voice measurements.
| Number | Attributes | Explanation |
|---|---|---|
| 1 | MDVP:Fo (Hz) | Average vocal fundamental frequency |
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| 2 | MDVP:Fhi (Hz) | Maximum vocal fundamental frequency |
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| 3 | MDVP:Flo (Hz) | Minimum vocal fundamental frequency |
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| 4 | MDVP:Jitter (%) | Several measures of variation in fundamental frequency |
| 5 | MDVP:Jitter (abs) | |
| 6 | MDVP:RAP | |
| 7 | MDVP:PPQ | |
| 8 | Jitter:DDP | |
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| 9 | MDVP:Shimmer | Several measures of variation in amplitude |
| 10 | MDVP:Shimmer (dB) | |
| 11 | Shimmer:APQ3 | |
| 12 | Shimmer:APQ5 | |
| 13 | MDVP:APQ | |
| 14 | Shimmer:DDA | |
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| 15 | RPDE | Two nonlinear dynamical complexity measures |
| 16 | D2 | |
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| 17 | NHR | The measure of ratio of noise to tonal components in the voice status |
| 18 | HNR | |
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| 19 | DFA | Signal fractal scaling exponent |
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| 20 | spread1 | Three nonlinear measures of fundamental frequency variation |
| 21 | spread2 | |
| 22 | PPE | |