TABLE II. LLDs for ComParE Feature Set. RASTA: Relative Spectral Transform; HNR: Harmonics to Noise Ratio; RMSE: Root Mean-Square Energy; and SHS: Subharmonic Summation. Details Can be Found in [55].

55 Spectral LLDs	Group
MFCCs 1–14	Cepstral
Psychoacoustic sharpness, harmonicity	Spectral
RASTA-filtered auditory spectral bands 1–26 (0–8kHz)	Spectral
Spectral energy 250–650Hz, 1k–4kHz	Spectral
Spectral flux, centroid, entropy, slope	Spectral
Spectral roll-off point 0.25, 0.5, 0.75, 0.9	Spectral
Spectral variance, skewness, kurtosis	Spectral
6 Voicing related LLDs	Group
(SHS and Viterbi smoothing)	Prosodic
Probability of voicing	Voice Quality
log HNR, jitter (local and ), shimmer (local)	Voice Quality
4 Energy related LLDs	Group
RMSE, zero-crossing rate	Prosodic
Sum of auditory spectrum (loudness)	Prosodic
Sum of RASTA-filtered auditory spectrum	Prosodic