对一段语音信号进行处理 分析对象：voiced and unvoiced speech 语音中的清音和浊音 在GUI界面上实现以下功能： 1显示短时频谱 既对信号分帧后直接进行傅里叶变换 2在上面基础上经对数运算后再进行傅里叶反变换得到倒谱 显示两个图像（取对数和之后反变换的） 3根据倒谱再进行倒谱分析 用它观察自相关等等 最终实现基音周期估计(Pitch Detection)和 追踪 Pitch Tracking 这里还要应用到其他一些东西~自相关函数 对数倒频谱等等 （原文For the Pitch Detection/Tracking ，The suggested methods include auto-correlation, cepstrum, long-term prediction, Hilbert-Huang Transform (EMD) and so on.）

cepstrum.m
Matlab语音信号倒谱分析.docx

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