Fig. 4From: Autocorrelation-based noise subtraction method with smoothing, overestimation, energy, and cepstral mean and variance normalization for noisy speech recognitionLog power spectrum of a speech frame of ‘FAK_1B.08’ utterance from test set A of Aurora 2 task contaminated with subway noise at 0 and 10 dB SNRs in logarithmic scaleBack to article page