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Table 3 Recognition rate (%) obtained by proposed and standard methods with exhibition hall noise

From: A bio-inspired feature extraction for robust speech recognition

  Recognition rate with HMM-4-GM
  SNR level PLPaGc PLP LPCC LPC MFCC
  0 dB 37.53 26.67 18.33 8.31 26.04
  5 dB 61.36 48.31 39.06 14.67 47.18
Exhibition hall noise 10 dB 81.73 69.30 60.54 20.65 68.74
  15 dB 90.58 84.17 77.99 29.87 84.09
  20 dB 95.74 91.40 86.92 40.00 92.14
  Average 73.39 63.97 56.57 22.70 63.64