Research Article
Voice Activity Detection in Noisy Environments Based on Double-Combined Fourier Transform and Line Fitting
Table 4
The Euclidean distance between the three clusters.
| | SNR (dB) | −5 | 0 | 5 | 10 | 15 | 20 |
| | | Cluster 1 | | Noise-only | Noise-only | Noise-only | Noise-only | Noise-only | Noise-only |
| | Clusters 2 and 3 | | | | | | | | Noisy speech | 8.5 | 12.7 | 15.9 | 19.1 | 22.8 | 25.5 | | Speech-only | 5.4 | 9.9 | 12.9 | 17.2 | 21.3 | 24.3 |
| | Error | 3.1 | 2.8 | 3.0 | 1.9 | 1.5 | 1.2 |
|
|
