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电视节目的信息量大,时效性强,因而在数字化系统中对处理信息容量、制作效率、传输方式等方面的要求也高。目前的单机式多媒体设备虽然在功能上较传统设备有很大的增强,但由于容量和传输方面的问题,使之在工作效率和系统完整性方面不尽人意。采用计算机网络技术,将众多的多媒体设备连接起来,以实现资源共享和实时传输,可构成一个完善的电视节目制作及播出数字化系统。
The large amount of information and the timeliness of the television programs require a high level of processing information capacity, production efficiency, and transmission methods in a digital system. While today’s stand-alone multimedia devices are much more powerful than traditional devices, their capacity and transmission problems make them less than ideal for productivity and system integrity. The use of computer network technology, a large number of multimedia devices connected to achieve resource sharing and real-time transmission, can form a complete television program production and broadcast digital system.