Figure 1.

Difference of voice features by depressive episode by Benjamini–Hochberg test: (a) Spectral_centroid between three groups; (b) spectral_rolloff between three groups; (c) sq_mean_pitch between three groups; (d) stdev_pitch between three groups; (e) mean_magnitude between three groups; (f) zero-crossing-rate between three groups; (g) voice portion between three groups. * p value < 0.05, ** p value < 0.01, *** p value < 0.001. Abbreviations: ND—not depressed, mDE—minor depressive episode, MDE—major depressive episode, sqrt—square root, sq—squared, stdev—standard deviation.