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Centralcasting : ウィキペディア英語版
Centralcasting

In terrestrial radio and television broadcasting, centralcasting refers to the use of systems automation by which customised signals for broadcast by multiple individual stations may be created at one central facility.
== Definition ==
Centralcasting is a form of broadcast automation which operates on the presumption that large quantities of content are similar and are handled in a consistent or repetitive manner across multiple stations in a broadcast station group. While each individual station has its own digital on-screen graphic logo, call sign and identity, much of the content on a typical affiliate station consists of a common television network or syndicated programming with a small number of local broadcast programming time blocks employed for television news and sports television coverage, public affairs programming or local television commercials.
Traditionally, many operations at an individual broadcast station were handled manually by broadcast engineering technicians at the local station. Network feeds would arrive by satellite; these would contain time cues to indicate when the station could switch to a prerecorded local station break from a videotape recorder, a local station ID from a character generator or a local program such as a newscast. Syndicated programming would arrive separately, either recorded in advance from satellite for tape delay or transported on prerecorded media. Local advertisements would be stored on tape cartridges ("carts") which would need to be inserted in the correct timeslots manually. A station could not operate unattended, even if it were merely retransmitting a network television programme originated elsewhere.
Broadcast automation relies on computers to store and retrieve video, largely eliminating the use of individual videotapes and allowing switching and retrieval of stored programming, advertising and titles to take place automatically. The server would operate from stored playlists, in which each programme, each commercial advertisement, each live or network feed and each station break had been configured in advance.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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