Advantages and disadvantages of network broadcasting

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Pros and cons
Advantages : â‘  Network broadcasting has been digitized and networked from program production to transmission. The system has a high signal-to-noise ratio and does not generate noise during processing and transmission. Therefore, it can obtain better sound quality and can also perform stereo transmission.
â‘¡ It is relatively easy to implement intelligent broadcasting. Ethernet itself is a set of two-way networks. The function of timing, addressing, grouping, etc. of intelligent broadcasting can be easily realized by software on Ethernet.
â‘¢Multicast can be realized when the network speed permits. Because the audio file is a packet
It is transmitted in the network, so it is easy to implement multicast, and it is sufficient to send different data packets to different terminals.
â‘£ Achieve interactive broadcast and remote AOD. Because Ethernet is a two-way network, the control host can completely monitor the working status of each terminal and can control it. The terminal can also talk to the server through the LCD screen and request it directly from the server, which greatly facilitates foreign language teaching.
⑤ Convenient management: As long as the operator is on any computer on the campus network, all management and operation functions of the host can be realized, and the production and transmission of the program can be realized on any computer on the campus.
Disadvantages : ① It is easy to be limited by network bandwidth and speed. The campus network is a comprehensive public network. For schools, it may also be used for teaching management, multimedia teaching, electronic library, and distance learning. Ethernet uses code division multiple access technology. When there is a “network traffic jam” at a node, the broadcast of the broadcast terminal will be delayed, and in severe cases it will be intermittent. Because of the above reasons, the reliability of network broadcasting is difficult to guarantee.
â‘¡ Expensive: For the decompression of digital audio files, it must be PC + special software, or a special decompression chip, and each terminal must have its own IP address. At present, there is no professional chip-level developer in China, and it can only be decoded by embedded microcomputer + special decompression chip, which leads to higher product prices, which cannot be afforded by ordinary domestic schools.

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