PCM的编码端仿真程序,主要包括抽样\量化\编码三部分.用程序语言编写-PCM terminal emulation program code, including sample \ quantization \ encoding three parts. With the preparation of programming language

改变原始wav音频信号的抽样频率，并且显示处理前后声音信号的频谱.有助于帮助大家理解奈圭斯特抽样定理。-Change the original wav audio signal sampling frequency, and shows the spectrum of sound signal before and after treatment. Helps to help you understand the Nyquist sampling theorem.