The definition of live broadcast in Radio and Television Dictionary is "the broadcast mode in which the late (haobc) synthesis and broadcast of radio and television programs are carried out simultaneously". According to the broadcast occasion, it can be divided into live broadcast and studio or studio live broadcast.
Live TV broadcast is a way to produce and broadcast TV programs at the same time with the occurrence and development of events on the spot, which fully embodies the advantages of radio and television media. The live broadcast is a foreign live broadcast. Since 2000, with the advent of the Internet era, live television has gradually been replaced by live webcast, which has become synonymous with "live broadcast".
In April, 20021,the State Internet Information Office, the Ministry of Public Security, the Ministry of Commerce, the Ministry of Culture and Tourism, State Taxation Administration of The People's Republic of China, the State Administration of Market Supervision and the State Administration of Radio and Television jointly issued the Management Measures for Webcast Marketing (Trial).
The online media itself does not accurately and abstractly summarize the definition of webcasting. For convenience, we might as well refer to the concepts of communication and TV live broadcast, and give a simple definition of webcasting: information is generated and released synchronously with the occurrence and development of on-site events, and information is released through the network of two-way circulation process. Its forms can also be divided into live broadcast, studio interview live broadcast, text and picture live broadcast, video and audio live broadcast or live broadcast provided by TV (third party); It also has the functions of mass storage and convenient search.
Compared with the single past time and space of movies, the time and space that can be revealed by TV live broadcast have both the present tense and the past tense, while the network live broadcast has the function of compressing time and space besides TV. Such as synchronous text live broadcast, picture live broadcast, game live broadcast, mobile phone live broadcast and score live broadcast, etc. With the development of society, efficiency makes everyone know the benefits of live broadcast, reduces costs and accelerates the spread of information.
With the development of Internet technology, the concept of live broadcast has been expanded and developed, and more people pay attention to webcasting, especially the ecological chain of video live broadcast. Watch sports events (ball games, etc. ) and other major events and news online through network signals give the public a broad and free choice space.