中文说明：音频信号通过LM386放大，仿真效果非常好，对于初学者具有参考意义，一个计算声子晶体结构的一维传递矩阵法,验证可用，利用matlab GUI实现的串口编程例子。
English Description：
Audio signal by LM386 amplifier, the simulation results is very good, for beginners has reference significance and a computing one-dimensional phononic crystal structure of transfer matrix method, test available, the use of Matlab GUI implementation of serial programming examples.