Table 2 Average recognition results [%] of commonly used features subsets: acted speech (AS) and natural speech (NS)
From: Efficiency of chosen speech descriptors in relation to emotion recognition
| Feature set | k-NN AS | k-NN NS | SVM AS | SVM NS |
|---|---|---|---|---|
| f 0 | 31.6 | 39.8 | 19.66 | 26.98 |
| f 1−f 3 | 38.8 | 39.5 | 16.88 | 27.5 |
| Energy | 30.4 | 47 | 29.95 | 46.87 |
| LPC | 36.7 | 57.8 | 29.91 | 60.51 |