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Table 5 Recognition rate (%) obtained by proposed and standard methods with car 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 45.96 28.51 23.15 10.13 29.19
  5 dB 70.81 56.37 46.55 13.50 56.14
Car noise 10 dB 88.94 80.57 70.87 20.65 81.08
  15 dB 94.84 91.55 86.07 31.74 92.23
  20 dB 96.74 94.89 91.60 43.21 95.63
  Average 79.46 70.38 63.65 23.85 70.85