Aligning modulation audio meeting host

The utility model provides acoustic equipment dedicated to conference system. Para-control type audio conference host comprises an audio amplifying device, which is composed of an input amplifier 1, an electrical level controller 3, mixing amplifier 4 and stereo output amplifier 7. The output terminal of the input amplifier is connected with the electrical level controller whose output terminal is connected with the input terminal of the mixing amplifier while the output terminal of the mixing amplifier is then connected with the input terminal of the stereo output amplifier. The papa-control type audio conference host also comprises a signal control apparatus, which contains a central processor 8, a led/key controller 9, a potentiometer manager 10, a CAN BUS interface 12, a LED display lamp 16, a mike switch 17 and a mike volume adjustment potentiometer 18, wherein the central processor is separately connected with the led/key controller, the potentiometer manager and the CAN BUS interface, the led/key controller is connected with the LED display lamp and the mike switch, the potentiometer manager is connected with the mike volume adjustment potentiometer and the CAN BUS interface is separately connected with each speech unit.