说明：  能画出一段语音信号的语谱图，修改其中的参数能改变窗长和帧长来改变语谱图的时间分辨率和频谱分辨率。
(Can draw a section of speech signal spectra of the phrase, modify the parameters of which change the window length and帧长to change the language of the time resolution spectra and spectral resolutions.)