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Table 3 Feature values corresponding to swallowing sounds

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

  Thin Viscous
  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