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Table 1 Time domain features for swallowing sounds

From: The effects of increased fluid viscosity on swallowing sounds in healthy adults

   Neutral position    Chin-tuck position  
Feature Water Nectar-thick Honey-thick Water Nectar-thick Honey-thick
   apple juice apple juice   apple juice apple juice
σ 0.54±0.03 0.42±0.02 0.54±0.03 0.54±0.02 0.54±0.02 0.54±0.02
ν −1.34±0.22 −0.80±0.20 −1.04±0.34 −1.53±0.41 −2.19±0.59 −0.69±0.43
ϖ 92.5±17.1 96.1±16.7 173±43.1 157±37.5 300±57.7 227±41.6
ρ 98.7±0.04 99.0±0.04 99.1±0.06 98.1±0.14 98.5±0.10 98.7±0.05
L Z 6.14±0.15 5.78±0.16 5.61±0.18 7.45±0.29 6.39±0.26 5.98±0.20
  1. * denotes multiplication by 10-2.