采集一段语音信号，分别用矩形窗、汉纳窗、汉明窗、布莱克曼窗对采集的原始语音信号进行窗宽为N 的加窗FFT变换，得到利用不同窗函数对语音信号进行加窗FFT变换后的信号频谱图。观察不同窗函数的加窗效果，分析窗函数的适用情况。-Collecting a voice signal, respectively, with a rectangular window, Hanna window, Hamming window, Blackman window on the original speech signal acquisition window width is N plus window FFT transform, obtained using different window functions of the voice signal on windowed FFT converted signal spectrum diagram. Observe the different effect of the window function windowed analysis window function applicable.