Table 3 List of SDB severity group discriminators
Raw features | First derivatives | |
|---|---|---|
Normal group discriminator | ||
Mean | Compactness, FLEW, RDF, AMoM of LCQT 2,7-9 | – |
Standard deviation | Compactness, MFCC 0,3-11, LPC 6-7, AMoM of MFCC 0-1,4,6, AMoM of LCQT 0,2,4,7-9, AMoM of CQ-MFCC 2,4,7, sb 1-8, A weighted, C weighted, L weighted, peak DB, peak DBA, peak DBC | Compactness, FLEW, MFCC 0,2-3,5-12 |
Minimum | sb6, sb8 | – |
Mild group discriminator | ||
Mean | – | – |
Standard deviation | – | – |
Moderate group discriminator | ||
Mean | – | – |
Standard deviation | FLEW, MFCC 1 | ZC, SF-ZC, MFCC 1, LPC 2,5 |
Severe group discriminator | ||
Mean | SF, MM 0, AMoM 0,3,7, AMoM of MFCC 3, AMoM of LCQT 2-3,7-9, AMoM of CQ-MFCC 3,5,9 | |
Standard deviation | SF, SV, RMS, ZC, SF-ZC, SF-FFT, LPC 1, MM 0, RDF, AMoM 1,3,6-8, AMoM of MFCC 0,1,3,4,6, AMoM of LCQT 0-4, 6-9, AMoM of CQ-MFCC 1-4,6,7, A_weighted, C_weighted, L_weighted, peak_DB, peak_DBA, peak_DBC | SF, SV, RMS, SF-FFT, LPC 1,7, MM 0,2, RDF |