Table 5: Comparison of dynamic features between the first three formants of the vowel /aa/ in normal, polyp, and unilateral VCP subjects for males. The term SD indicates standard deviation.

Delta F1 meanDelta F1 SDDelta F2 meanDelta F2 SDDelta F3 meanDelta F3 SD
MeanSD valueMeanSD valueMeanSD valueMeanSD valueMeanSD valueMeanSD value

Normal−0.130.454.97.10.030.666.510.9−0.011.2316.417.9
Polyp−0.080.500.51516.418.300.030.520.30523.727.300.090.750.73636.232.60
Unilateral VCP0.311.01035.325.900.311.180.09750.146.600.280.960.02743.430.10