你看一下 closed caption 是怎样工作的就知道了

violent_panda (彻底打倒乱讲话的熊猫)
Closed captioning for a live broadcast is very similar to court reporting -- stenocaptioners use a special keyboard to write what they hear as they hear it. Stenocaptioners are often capable of writing at speeds of up to 250 words a minute -- much faster than even the fastest typists.

The typed words then go into a computer system, where they are translated into text and commands. Captioning software then converts the text into the captions which are then sent to a caption encoder. The results are what you see on the television screen, typos and all.
2002-1-28 -04:00
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Back To Topic: 想买台电视,在walmart的网站上看见一台电视,盒子上面写closed caption decoder. 什么意思?下面还有人说喜欢这个功能.到底是意思是有字幕还是没有呀?那位大虾知道?谢谢!

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