说明： 电脑音源切换控制器
用AT89C251+CD4016切换控制，可控制四路以上
的立体音源输入切换，一路立体声输出,有红外遥
控(SAA3010T电视遥控器，只处理四个音源) (computer audio switching controller with AT89C251 CD4016 switching control can control four or more three-dimensional audio input switching, one stereo output, with an infrared remote control (SAA3010T TV remote control to handle four sources))
