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给出了一种基于小波变换的汉语三字词基音提取方法。根据小波变换应用于突变信号检测的原理，充分利用多分辨率分析，准确地实现了汉语三字词基音的提取，同时给出了小波变换的快速算法。
A method of pitch extraction of Chinese three-syllable words based on wavelet transform is given. According to the principle that wavelet transform is applied to the detection of catastrophe signal, this paper makes full use of multi-resolution analysis to accurately extract the pitch of Chinese three-word and gives a fast algorithm of wavelet transform.