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Table 10 Fisher scores for vowel discrimination using FrFT-MFCC. Orders are set according to times of pitch rate.

From: Pitch- and Formant-Based Order Adaptation of the Fractional Fourier Transform and Its Application to Speech Recognition

  1 2 3 4 All
8.97 14.57 18.07 12.88 13.14
8.73 14.31 17.94 12.77 12.91
8.57 14.10 17.74 12.67 12.73
8.38 13.85 17.26 12.42 12.44