数字化上载系统的设计与构建

Design and Building of Digital Uploading System

广播电视技术从模拟最终走向数字化,在当前模、数并存的时代,推进数字化进程势在必行。本文以福建电视台播出中心的上载系统为例,结合技术现状以及未来趋势,对系统的数字化方案的提出、拟定和实施作了介绍,并对音频嵌入技术在实践中的应用也作了相关的表述。借此希望对于以后的数字化建设提供一些思路和实践经验。

Many TV stations adopt a method of gradual transformation on the basis of the original apparatus room in the course of digital migration. For example, Fujian TV Station is one of such stations. They implement the migration to hard-disc auto play first, then to digital uploading system and , finally, to digital studio system. There is introduced the uploading system in the Broadcasting Center at Fujian TV Station. This system both is suited to present analog transmissions and is ready to use videorecorders as direct signal sources in future digital transmissions, which lays a foundation for realizing future all-round digital transmissions.