Table 3 Classification efficiency using k-NN and SVM [%] with various combinations of dynamic parameters for acted speech (AS) and natural speech (NS)
From: Efficiency of chosen speech descriptors in relation to emotion recognition
Coefficients | AS k-NN | AS SVM | NS k-NN | NS SVM |
|---|---|---|---|---|
MFCC | 56.5 | 40.5 | 71.7 | 58.31 |
MFCC + ΔMFCC | 52.7 | 40.5 | 68.7 | 42.91 |
MFCC + Δ ΔMFCC | 51.1 | 37.13 | 66.9 | 42.91 |
MFCC + ΔMFCC + Δ ΔMFCC | 36.7 | 33.75 | 66.9 | 37.5 |
HFCC | 52.7 | 39.66 | 70.6 | 55.17 |
HFCC + ΔHFCC | 47.7 | 37.13 | 67.8 | 40.32 |
HFCC + Δ ΔHFCC | 46 | 36.7 | 66.9 | 36.23 |
HFCC + ΔHFCC + Δ ΔHFCC | 43.9 | 36.7 | 64.6 | 34.59 |
BFCC | 56.5 | 40.92 | 74.5 | 59.4 |
BFCC + ΔBFCC | 56.5 | 36.28 | 70.25 | 44 |
BFCC + Δ ΔBFCC | 53.6 | 35.86 | 73.4 | 38.41 |
BFCC + ΔBFCC + Δ ΔBFCC | 53.6 | 35.86 | 69.9 | 36.28 |
PLP | 54 | 21.51 | 71.4 | 36.83 |
PLP+ ΔPLP | 52.7 | 16.87 | 66.9 | 22.47 |
PLP + Δ ΔPLP | 53.6 | 16.87 | 66.9 | 22.47 |
PLP + ΔPLP + Δ ΔPLP | 50.2 | 16.87 | 64.7 | 22.47 |
RPLP | 55.7 | 43.88 | 70 | 54.76 |
RPLP + ΔRPLP | 54.4 | 40.08 | 69.3 | 51.9 |
RPLP + Δ ΔRPLP | 52.3 | 40.92 | 68.4 | 51.9 |
RPLP + ΔRPLP + Δ ΔRPLP | 52.3 | 40.5 | 68 | 51.9 |
RASTA PLP | 43 | 36.28 | 52.2 | 50 |
RASTA PLP + ΔRASTA PLP | 40.1 | 35.02 | 51.8 | 36.83 |
RASTA PLP + Δ ΔRASTA PLP | 40.9 | 32.48 | 48.5 | 36.83 |
RASTA PLP + ΔRASTA PLP + Δ ΔRASTA PLP | 40.1 | 32.48 | 48.1 | 36.83 |