Table 3.
Classification outcomes of each individual classifier for males.
| Features | SVM | GMM | LR | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Sen. (%) | Spe. (%) | Acc. (%) | Sen. (%) | Spe. (%) | Acc. (%) | Sen. (%) | Spe. (%) | Acc. (%) | |
| MFCC | 56.14 | 64.91 | 60.66 | 62.72 | 58.22 | 60.40 | 62.50 | 60.75 | 61.60 |
| PROS | 61.96 | 70.39 | 66.30 | 61.75 | 74.14 | 68.13 | 63.15 | 71.10 | 67.24 |
| SPEC | 63.36 | 73.94 | 68.81 | 65.84 | 71.60 | 68.81 | 67.35 | 70.69 | 69.07 |
| GLOT | 36.32 | 60.95 | 49.01 | 47.95 | 54.26 | 51.20 | 44.07 | 54.56 | 49.48 |
| MFCC + PROS | 60.67 | 69.78 | 65.36 | 63.69 | 70.49 | 67.19 | 65.41 | 68.36 | 66.93 |
| MFCC + SPEC | 59.05 | 72.72 | 66.09 | 64.55 | 69.17 | 66.93 | 63.58 | 69.07 | 66.41 |
| MFCC + GLOT | 53.56 | 66.53 | 60.24 | 61.96 | 60.65 | 61.29 | 61.10 | 60.75 | 60.92 |
| PROS + SPEC | 63.25 | 73.83 | 68.70 | 62.72 | 74.14 | 68.60 | 67.13 | 72.21 | 69.85 |
| PROS + GLOT | 60.99 | 71.60 | 66.46 | 61.96 | 72.92 | 67.61 | 62.82 | 71.20 | 67.14 |
| SPEC + GLOT | 62.61 | 75.15 | 69.07 | 65.19 | 70.89 | 68.13 | 66.70 | 70.99 | 68.91 |
| MFCC + PROS + SPEC | 60.99 | 72.92 | 67.14 | 65.63 | 72.31 | 69.07 | 64.55 | 70.39 | 67.56 |
| MFCC + PROS + GLOT | 59.59 | 72.62 | 66.30 | 63.36 | 69.27 | 66.41 | 62.82 | 67.24 | 65.10 |
| MFCC + SPEC + GLOT | 60.24 | 72.82 | 66.72 | 65.84 | 69.98 | 67.97 | 64.66 | 68.66 | 66.72 |
| PROS + SPEC + GLOT | 60.02 | 73.83 | 67.14 | 62.82 | 74.24 | 68.70 | 64.12 | 71.91 | 68.13 |
| MFCC + PROS + SPEC + GLOT | 61.85 | 73.12 | 67.66 | 66.27 | 71.30 | 68.86 | 64.33 | 72.21 | 68.39 |
Maximum of sensitivity (sen.), specificity (spe.), and accuracy (acc.) is shown in bold.