Table 3 Feature values corresponding to swallowing sounds
From: A statistical analysis of cervical auscultation signals from adults with unsafe airway protection
| Â | Thin | Viscous | ||
|---|---|---|---|---|
| Â | Safe | Unsafe | Safe | Unsafe |
Skewness | –0.317, 3.334 | –1.564, 3.531 | –0.525, 3.894 | –0.125, 3.873 |
Kurtosis | 149.2, 117.0 | 187.2, 101.0 | 191.8, 132.4 | 157.3, 88.60 |
Entropy Rate | 0.985, 0.009 | 0.986, 0.009 | 0.987, 0.007 | 0.987, 0.007 |
L-Z Complexity | 0.055, 0.031 | 0.055, 0.048 | 0.050, 0.026 | 0.052, 0.038 |
Peak Freq (Hz) | 94.10, 122.3 | 99.52, 77.71 | 99.46, 130.4 | 92.88, 100.2 |
Center Freq (Hz) | 312.5, 315.9 | 348.5, 245.7 | 340.3, 305.1 | 382.2, 294.2 |
Bandwidth (Hz) | 348.2, 281.8 | 393.6, 170.0 | 402.7, 284.0 | 399.0, 230.7 |
Wavelet Entropy | 1.723, 1.151 | 1.641, 1.119 | 1.596, 0.946 | 1.697, 1.615 |