能够加载合并，调制，解调和显示 wav 波形的工具-Able to load the merger, modulation, demodulation and display wav waveform tool

这是一个频分复用系统的数字处理方法，传送了2个wav文件，采样频率200kHz，2路载波的频率分别为44kHz，48kHz。整个代码涉及到wav文件的编码和解码，信号的数字滤波，调制解调。-This is a frequency division multiplexing system of digital processing methods, to send the two wav files, the sampling frequency of 200kHz, 2-carrier freq

音频解调，基于C语言的音频wav的截取识别与解调-Audio demodulation, based on the C language audio wav interception identification and demodulation