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近年来，小波分析得到了迅速发展，尤其在数字通信、计算机图象处理等领域中得到广泛应用。目前基于数学严密性和完善性的小波分析不仅应用于理论研究方面，还应用于实际问题的解决方面。分析了小波变换在语音信号基音周期提取中的应用及其具体解决方案。
In recent years, wavelet analysis has been developed rapidly, especially in the field of digital communications, computer image processing and other fields. At present, the wavelet analysis based on mathematic rigor and consummateness not only applies to theoretical research but also solves practical problems. The application of wavelet transform in the pitch cycle of speech signal and its solution are analyzed.