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. 2019 May 24;14(5):e0217388. doi: 10.1371/journal.pone.0217388

Table 3. Acoustic features.

Features Type Number of features
Speech and silent statistics Speech and silent features 15
Fundamental frequency (F0) Phonation and voice quality 3
Harmonic-to-noise ratio (HNR) Phonation and voice quality 3
Noise-to-harmonic ratio (NHR) Phonation and voice quality 3
Shimmer scales Phonation and voice quality 3
Jitter scales Phonation and voice quality 3
Number of voice breaks Phonation and voice quality 3
Degree of voice breaks Phonation and voice quality 3
Mel frequency cepstral coefficients (MFCC) Spectral features 5
Filter bank energy coefficient (Fbank) Spectral features 5
Spectral Subband Centroid (SSC) Spectral features 5
Total 51