简单的音乐合成实验，可以对以段现有的音乐进行傅里叶分析，并播放一段自己输入生成的音乐。针对信号系统Matlab应用的大作业编写-Simple music synthesis experiments, the section on Fourier analysis of existing music, and play a segment of the input generated by their music. Matlab application for a large signal sys