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通信的飞速发展使世界越来越小,也使人与人之间的距离越来越近。电话已可让天各一方的人们听见彼此熟悉的声音,而视频会议则将让人们不必经过旅途劳累,即可“面对面”地讨论问题。那么视频会议究竟离我们还有多远呢? 视频会议即通过线路将语音、视频以及数据实时地从一端传送到另一端,其技术实现准度较大。首先,是获取语音和图像。通常采用视频头或数字
With the rapid development of communication, the world is getting smaller and smaller, and the distance between people is getting closer. Phones have made it easy for people on each side to hear familiar voices, while video conferencing will allow people to discuss the issue “face-to-face” without having to travel hard. So how far is the video conference away from us? Video conferencing is the technology that delivers voice, video, and data over the wire in real time from one end to the other. First, get voice and images. Usually video head or number