Professional-level networking audio-video processing equipment for large gymnasium

Disclosed in the utility model is a piece of professional-level networking audio-video processing equipment for a large gymnasium. The professional-level networking audio-video processing equipment is characterized in that the equipment comprises an audio processing device, a character superimposition processor, a digital/analog converter, an audio-video clock synchronous circuit, an audio-video compression card, an audio-video backup device, a video processing device and a communication unit, wherein the audio processing device, the character superimposition processor, the digital/analog converter, the audio-video clock synchronous circuit, the audio-video compression card, and the audio-video backup device are successively connected; the video processing device and the character superimposition processor are connected; and the communication unit and the audio-video compression card are connected. The video processing device has the standard serial audio input interface; and multiple audio input formats are