Speech recognition has wide use in the field of communication and so on·Speech feature parameter extraction is an important part of the speech recognition system．The performance of the feature parameter haftuences the system’S performance directly．And the environmental noise is a kev factor of restricting the performance of the feature parameter．This paper，s research object is extracting the speech feature parameter under the noise environment·Then it analyzes the auditory model of human，deeply analyzes and researches the traditional speech feature parameter MFCC， and proposes three improved MFCC parameters based on theⅥ，avelet transformation and the auditory characteristic ofhuman．Besides，the paper also gives all improved method about the feature parameter ZCPA．

The research of anti niose speech.pdf

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