Table 1.
Description of dataset #1
| Feature Name | PD | Healthy | ||||||
|---|---|---|---|---|---|---|---|---|
| Min Value | Max Value | Median | Min Value | Max Value | Median | |||
| 1 | MDVP: Fo (Hz) | Average vocal fundamental frequency | 88.33 | 223.36 | 145.174 | 110.74 | 260.11 | 198.996 |
| 2 | MDVP: Fhi (Hz) | Maximum vocal fundamental frequency | 102.15 | 588.52 | 163.335 | 113.60 | 592.03 | 231.1615 |
| 3 | MDVP: Flo (Hz) | Minimum vocal fundamental frequency | 65.48 | 199.02 | 99.77 | 74.29 | 239.17 | 113.9385 |
| 4 | MDVP: Jitter(%) | MDVP jitter in percentage | 0.00168 | 0.03316 | 0.00544 | 0.00178 | 0.0136 | 0.00336 |
| 5 | MDVP: Jitter (Abs) | MDVP absolute jitter in ms | 0.00001 | 0.00026 | 0.00004 | 0.000007 | 0.00008 | 0.000025 |
| 6 | MDVP: RAP | MDVP relative amplitude perturbation | 0.00068 | 0.02144 | 0.00284 | 0.00092 | 0.00624 | 0.00163 |
| 7 | MDVP: PPQ | MDVP five-point period perturbation quotient | 0.00092 | 0.01958 | 0.00314 | 0.00106 | 0.00564 | 0.001775 |
| 8 | Jitter: DDP | Average absolute difference of differences between jitter cycles | 0.00204 | 0.06433 | 0.00853 | 0.00276 | 0.01873 | 0.00488 |
| 9 | MDVP: Shimmer | MDVP local shimmer | 0.01022 | 0.11908 | 0.02838 | 0.00954 | 0.04087 | 0.01671 |
| 10 | MDVP: Shimmer (dB) | MDVP local shimmer in dB | 0.09 | 1.302 | 0.263 | 0.085 | 0.405 | 0.154 |
| 11 | Shimmer: APQ3 | Three-point amplitude perturbation quotient | 0.00455 | 0.05647 | 0.01484 | 0.00468 | 0.02336 | 0.00878 |
| 12 | Shimmer: APQ5 | Five-point amplitude perturbation quotient | 0.0057 | 0.0794 | 0.0165 | 0.00606 | 0.02498 | 0.01023 |
| 13 | MDVP: APQ | MDVP 11-point amplitude perturbation quotient | 0.00811 | 0.13778 | 0.02157 | 0.00719 | 0.02745 | 0.01302 |
| 14 | Shimmer: DDA | Average absolute differences between the amplitudes of consecutive periods | 0.01364 | 0.16942 | 0.04451 | 0.01403 | 0.07008 | 0.02633 |
| 15 | NHR | Noise-to-harmonics ratio | 0.00231 | 0.31482 | 0.01658 | 0.00065 | 0.10715 | 0.00483 |
| 16 | HNR | Harmonics-to-noise ratio | 8.441 | 29.928 | 21.414 | 17.883 | 33.047 | 24.997 |
| 17 | RPDE | Recurrence period density entropy measure | 0.26365 | 0.68515 | 0.53053 | 0.25657 | 0.66384 | 0.43537 |
| 18 | DFA | Signal fractal scaling exponent of detrended fluctuation analysis | 0.57428 | 0.82529 | 0.72665 | 0.62671 | 0.78571 | 0.68253 |
| 19 | spread1 | Two nonlinear measures of fundamental | −7.12092 | −2.43403 | −5.44004 | −6.75926 | 0.64278 | −6.82645 |
| 20 | spread2 | Frequency variation | 0.06341 | 0.45049 | 0.24088 | 0.00627 | 0.29195 | 0.16736 |
| 21 | D2 | Correlation dimension | 1.76596 | 3.67116 | 2.43959 | 1.42329 | 2.88245 | 2.12951 |
| 22 | PPE | Pitch period entropy | 0.09319 | 0.52737 | 0.22272 | 0.04454 | 0.25240 | 0.11512 |