Table 1 VAD results from different GMM orders at different kinds of environments with different SNRs
From: A novel voice activity detection based on phoneme recognition using statistical model
NE | SNR (dB) | mix1 (%) | mix2 (%) | mix4 (%) | mix8 (%) | mix16 (%) |
|---|---|---|---|---|---|---|
n-stat | -5 | 77.31 | 78.90 | 78.46 | 83.19 | 83.17 |
| Â | 0 | 78.22 | 81.33 | 82.28 | 83.40 | 85.74 |
| Â | 5 | 81.37 | 82.66 | 81.65 | 82.93 | 84.13 |
| Â | 10 | 85.45 | 85.97 | 86.47 | 88.70 | 90.66 |
| Â | 15 | 87.91 | 91.33 | 92.67 | 91.91 | 92.82 |
| Â | 20 | 97.01 | 96.78 | 96.49 | 95.94 | 95.21 |
In car | -5 | 94.68 | 94.80 | 94.81 | 94.91 | 94.94 |
| Â | 0 | 95.70 | 95.78 | 95.72 | 95.70 | 95.50 |
| Â | 5 | 96.51 | 96.36 | 96.52 | 95.70 | 95.58 |
| Â | 10 | 96.80 | 96.57 | 96.58 | 96.23 | 95.84 |
| Â | 15 | 97.49 | 97.36 | 97.12 | 96.53 | 95.90 |
| Â | 20 | 97.45 | 97.40 | 97.16 | 96.47 | 95.91 |
Street | -5 | 88.85 | 89.21 | 91.42 | 94.91 | 94.94 |
| Â | 0 | 93.84 | 93.90 | 94.33 | 94.49 | 94.36 |
| Â | 5 | 95.15 | 95.40 | 95.24 | 95.33 | 95.05 |
| Â | 10 | 96.02 | 96.32 | 95.94 | 95.86 | 95.46 |
| Â | 15 | 96.68 | 95.60 | 97.03 | 96.38 | 95.60 |
| Â | 20 | 97.15 | 97.32 | 97.27 | 96.61 | 95.47 |