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Table 1 Statistics of x-vectors and i-vectors, and the corresponding synthesis data

From: A simulation study on optimal scores for speaker recognition

   x-vector i-vector
   True data Synthesis data True data Synthesis data
Within class PC1 dir. STD 0.095 0.045 0.060 0.045
  PC2 dir. STD 0.077 0.045 0.063 0.055
  Avg PC dir. STD 0.084 0.045 0.055 0.055
  PC1 shape STD 11.2 1.80 11.5 1.94
  PC2 shape STD 6.83 1.82 7.95 1.95
  Avg PC shape STD 5.53 1.85 5.48 1.98
  PC Kurtosis 19.15 0.150 1.940 0.152
  PC Skewness 0.837 0.040 0.370 0.041
Between class PC Kurtosis 0.390 0.010 0.358 0.002
  PC Skewness 0.065 0.001 0.043 0.001
  EER% (STD) 2.77 (0.1) 0.0 (0.0) 3.22 (0.2) 0.003 (0.008)
  IDR% (STD) 85.51(0.7) 100.0 (0.0) 75.08 (0.5) 100.0(0.0)