Table 2 Feature values corresponding to superior-inferior swallowing vibrations
From: A statistical analysis of cervical auscultation signals from adults with unsafe airway protection
| Â | Thin | Viscous | ||
|---|---|---|---|---|
| Â | Safe | Unsafe | Safe | Unsafe |
Skewness | –0.557, 1.082 | –0.435, 2.305 | –0.129, 1.207 | –0.441, 0.754 |
Kurtosis | 28.91, 14.79 | 101.6, 31.11 | 66.26, 11.13 | 22.68, 8.000 |
Entropy Rate | 0.988, 0.005 | 0.989, 0.003 | 0.989, 0.006 | 0.988, 0.004 |
L-Z Complexity | 0.068, 0.033 | 0.067, 0.032 | 0.062, 0.038 | 0.069, 0.032 |
Peak Freq (Hz) | 11.33, 3.660 | 19.52, 7.336 | 10.79, 3.627 | 30.60, 3.812 |
Center Freq (Hz) | 67.53, 47.45 | 143.4, 56.31 | 105.7, 44.94 | 85.52, 20.85 |
Bandwidth (Hz) | 114.7, 99.64 | 238.4, 62.16 | 145.3, 107.5 | 180.4, 35.51 |
Wavelet Entropy | 1.160, 1.178 | 0.978, 0.996 | 1.138, 1.001 | 1.004, 1.408 |