| Trained/ Tested on | i-vector | x-vector | LSTM | SVM-linear | SVM-rbf | ||||||
| Acc. | F1 | Acc. | F1 | Acc. | F1 | Acc. | F1 | Acc. | F1 | ||
| PCM/ GSM-FR | 87.1% | 88.3% | 81.2% | 79.5% | 81.2% | 80.0% | 80.6% | 81.6% | 87.6% | 87.1% | |
| PCM/ G.723.1 | 90.6% | 90.4% | 78.2% | 76.7% | 77.6% | 72.9% | 80.6% | 79.2% | 84.1% | 82.8% | |
| GSM-FR/ PCM | 87.6% | 87.7% | 78.8% | 79.3% | 82.4% | 83.0% | 85.9% | 86.7% | 86.5% | 87.3% | |
| G.723.1/ PCM | 87.1% | 87.8% | 74.7% | 73.6% | 80.6% | 82.2% | 75.9% | 80.0% | 81.8% | 83.8% | |