Features | Description |
MDVP: Fo (Hz) | Average vocal fundamental frequency |
MDVP: Fhi (Hz) | Maximum vocal fundamental frequency |
MDVP: Flo (Hz) | Minimum vocal fundamental frequency |
Jitter (%) Jitter (Abs) MDVP: RAP MDVP: PPQ Jitter: DDP | Several measures of variation in fundamental frequency |
Shimmer Shimmer (dB) Shimmer: APQ3 Shimmer: APQ5 MDVP: APQ Shimmer: DDA | Several measures of variation in amplitude |
NHR HNR | Two measures of ratio of noise to tonal components in the voice |
RPDE D 2 | Two nonlinear dynamical complexity measures |
DFA | Signal fractal scaling exponent |
spread 1 spread 2 PPE | Three nonlinear measures of fundamental frequency variation |