Streaming Media Network Broadcast Technology And Its Application In Modern Distance Education

As the development of electronic science technology and computer network technology, distance education develops quickly, being faced up a new period of all-around digital and networking. Information Technology, computer technology as the key part, brings TV technology domain many breakthroughs, one typical representation of which is to deliver and present video signal over the network. Delivering video and audio signal over Internet can broaden the teaching extensions of modern distance education, accelerate the education to realize digital, informational,networking and lifelong. In the stepping of Web education, the application of streaming media technology will break through the "bottleneck" of bandwidth of Internet, which is connected in low bit rate, make video and audio signal delivered over Internet effectively, which is called "streaming delivery" and can obviously improve the deficiencies in download method. Streaming media technology maybe the main technological means for delivery and representation of video signal over network.. At first, this article briefly introduces streaming media technology and transmission method, streaming media document, video frequency compression technology and the composition of streaming media system, in detail expounds the transmission principle of streaming media technology, and on base of experiment analyze and compare the current three solution projects of the video and audio technology, expound emphasis on the character of the modem distance education and the present condition of distance edution in Chinese and American, and compare and on base of this analyzes the modern distance education of Chinese and American, summarize the exsisting questions of our modern distance education. At last, this article discusses video sigal prevalence on the Internet and theiiitheory reliance applying streaming media web broadcasting technology to develop moder multimedia distance edcation, and holds forth the distance education solution project based on the streaming media technology.