一个简单的morningcall程序，自动拨号并播放录音-Morningcall a simple procedure, automatic dial-up and broadcast of audio

Simulation of MIMO video and Audio and Text

调频广播中，为了提高音频高频率端的信噪比，在发射端进行的预加重处理。-FM radio, in order to improve the high frequency end of the audio signal to noise ratio, performed at the transmitter pre-emphasis.