抱怨地

This dissertation begins with the analysis of speech signal pretreatment and does some points test, draws the characteristic parameter of the introduction pronunciation through MATLAB speech processing toolbox, gets rid of the aphonia segment and yawp of speech signal, offers effective speech segment for the distill of speech characteristic parameter.

本系统首先从语音信号的预处理开始分析，通过MATLAB语音处理工具箱提取输入语音的特征参数，对语音信号进行了端点检测，滤除了语音信号的无声段和噪声，为语音特征参数的提取提供了有效语音段。

Noam Wasserman, of HBS, suggests that many entrepreneurs are unusually, sometimes excessively, confident.

哈佛大学商学院的Noam Wasserman就认为，大部分创业者都比常人更自信，有时甚至会自信过头。