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Intra-frame cepstral sub-band weighting and histogram equalization for noise-robust speech recognition

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Figure

Figure 1 The structure of the S-HEQ algorithm.
Figure 2 Some information about the DFT-based spectrum of cepstra without CHN processing.filtered cepstra
Figure 4 Some information about the DCT-based spectrum of cepstra without CHN processing
Figure 6 The flowcharts of two structures of WS-HEQ. (a) Structure I and (b) structure II.
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