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IntroductionTo improve the robustness of recognition sys-tems in real environment,many theories and ap-proaches have been brought forward to suppressthe environmental noise ( background noise,chan-nel distortion,etc) ,and they can be divided intothree types according to their thoughts:speech en-hancement,robust feature vector and model com-position. The approach of speech enhancementconsiders extracting clean speech signal fromspeech signal corrupted by noise,typically as SSmethod[1] ( to supp… 相似文献
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