Select Audio Feature: Spectral Entropy MFCC4 Standard Deviation Formant 4, median Formant Delta F Formant Dispersion Formant Average Roughness (Zwicker)[Asper] Roughness (Sethares) Roughness (Vassilakis) Roughness (Timbral Models) Formant 4, mean Spectral Centroid Jitter Pitch Swipe MFCC11 Standard Deviation Harmonic/Percussive Ratio Formant 2 Standard Deviation Spectral Contrast at 1600-3200 Hz Resonantor size Bell likelyness