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Table 2 Feature values corresponding to superior-inferior swallowing vibrations

From: A statistical analysis of cervical auscultation signals from adults with unsafe airway protection

  Thin Viscous
  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