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Table 4 Recognition rate (%) obtained by proposed and standard methods with street 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 39.86 32.03 25.13 10.52 30.64
  5 dB 65.90 51.60 41.73 12.65 50.52
Street noise 10 dB 84.26 72.99 60.51 16.88 73.13
  15 dB 92.84 85.93 76.79 26.35 86.33
  20 dB 96.00 91.63 87.09 38.04 92.31
  Average 75.70 66.84 58.25 20.89 66.59