. Author manuscript; available in PMC: 2019 Jun 11.

Published in final edited form as: Proc ACM Interact Mob Wearable Ubiquitous Technol. 2018 Jun;2(2):81. doi: 10.1145/3214284

Table 1.

Low-level descriptive features and high-level functionals; std: standard deviation; var: variance; dim: dimension

Features	Functionals
Zero crossing rate & ∆ (2-dim)	Min, Max, std, var, mean, median, skew, and kurtosis
Energy & ∆ (2-dim)
Spectral centroid & ∆ (2-dim)
Pitch & ∆ (2-dim)
MFCC & ∆ (26-dim)