Designed based on IoT application scenarios and developed using digital network architecture, it supports wired and wireless converged conference applications. Wireless microphone units can be added at any time without adding antenna amplifiers to achieve flexible speech. Integrate AOIP network audio protocol and TCP/IP network to assist management, and easily build network audio through a network cable. It is efficient, fast, and the system has strong scalability, suitable for network audio collection and management. It is convenient to access the Internet of Things system and realize the interconnection between network audio, which is beneficial to various networked conference systems, distributed management and interconnection. It has embedded machine self-learning algorithm technology, noise reduction algorithm ANC, and howling suppression function AFC. Users create a clear and comfortable audio-visual environment, which is widely used in government and large enterprise conference rooms, video conferencing, lecture halls, multi-functional halls and other scenarios.