| Trained/Tested on | PCM/GSM-FR | PCM/G.723.1 | GSM-FR/PCM | G.723.1/PCM | |
| i-vector | Spec. | 76.5% | 92.9% | 87.1% | 81.2% |
| Sen. | 97.6% | 88.2% | 88.2% | 92.9% | |
| Prec. | 80.6% | 92.6% | 87.2% | 83.2% | |
| Acc. | 87.1% | 90.6% | 87.6% | 87.1% | |
| F1 | 88.3% | 90.4% | 87.7% | 87.8% | |
| x-vector | Spec. | 89.4% | 84.7% | 76.5% | 78.8% |
| Sen. | 72.9% | 71.8% | 81.2% | 70.6% | |
| Prec. | 87.3% | 82.4% | 77.5% | 76.9% | |
| Acc. | 81.2% | 78.2% | 78.8% | 74.7% | |
| F1 | 79.5% | 76.7% | 79.3% | 73.6% | |
| LSTM | Spec. | 77.9% | 70.4% | 84.8% | 87.1% |
| Sen. | 85.3% | 92.7% | 80.2% | 76.0% | |
| Prec. | 75.3% | 60.0% | 85.9% | 89.4% | |
| Acc. | 81.2% | 77.6% | 82.4% | 80.6% | |
| F1 | 80.0% | 72.9% | 83.0% | 82.2% | |
| SVM-linear | Spec. | 75.3% | 87.1% | 80.0% | 55.3% |
| Sen. | 85.9% | 74.1% | 91.8% | 96.5% | |
| Prec. | 77.7% | 85.1% | 82.1% | 68.3% | |
| Acc. | 80.6% | 80.6% | 85.9% | 75.9% | |
| F1 | 81.6% | 79.2% | 86.7% | 80.0% | |
| SVM-rbf | Spec. | 91.8% | 91.8% | 80.0% | 69.4% |
| Sen. | 83.5% | 76.5% | 92.9% | 94.1% | |
| Prec. | 91.0% | 90.3% | 82.3% | 75.5% | |
| Acc. | 87.6% | 84.1% | 86.5% | 81.8% | |
| F1 | 87.1% | 82.8% | 87.3% | 83.8% | |