这个设计结合音频输入从麦克风和线路信号和输出结果线输出信号。麦克风连接话筒端口、音源线在端口,扬声器/耳机线端口。-This design combines audio input from the microphone and line in signals and outputs the result to the line out signal. Connect a microphone to the MIC port, an audio source to the LINE IN por