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d2o(Native BACnet)
本文发表在 rolia.net 枫下论坛What are captions?
Just as a caption in a book is the text under a picture, captions on video are text located somewhere on the picture. Since there is no way for a television to put text outside the area of the picture tube, captions do end up covering a portion of the picture (there are non-broadcast applications where this can be done).

CLOSED captions are captions that are hidden in the video signal, invisible without a special decoder. The place they are hidden is called line 21 of the vertical blanking interval (VBI). For more detail, see the "technical stuff" portion of this FAQ.

OPEN captions are captions that have been decoded, so they have become an integral part of the television picture, like subtitles in a movie. In other words, open captions cannot be turned off. The term "open captions" is also used to refer to subtitles created with a character generator.

For a look at the different types of captions, see "What caption styles are available?" on the "Why captions look the way they do" page.更多精彩文章及讨论，请光临枫下论坛 rolia.net
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Last Updated: 2005-1-12
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Replies, comments and Discussions:

  • 工作学习 / English / 总见电视字幕最后写：closed captioning by.....这个closed到底是什么意思啊？ -black5k(黑五类); 2005-1-12 (#2070368@0)
    • GO -d2o(Native BACnet); 2005-1-12 {1041} (#2070395@0)
      本文发表在 rolia.net 枫下论坛What are captions?
      Just as a caption in a book is the text under a picture, captions on video are text located somewhere on the picture. Since there is no way for a television to put text outside the area of the picture tube, captions do end up covering a portion of the picture (there are non-broadcast applications where this can be done).

      CLOSED captions are captions that are hidden in the video signal, invisible without a special decoder. The place they are hidden is called line 21 of the vertical blanking interval (VBI). For more detail, see the "technical stuff" portion of this FAQ.

      OPEN captions are captions that have been decoded, so they have become an integral part of the television picture, like subtitles in a movie. In other words, open captions cannot be turned off. The term "open captions" is also used to refer to subtitles created with a character generator.

      For a look at the different types of captions, see "What caption styles are available?" on the "Why captions look the way they do" page.更多精彩文章及讨论，请光临枫下论坛 rolia.net
      • 这下明白了，多谢。。。只是还不明白他们为什么特意要说CLOSED captioning by。。。就说captioning by不成么？。。。是XB他们closed比open好？还是法律要求？ -black5k(黑五类); 2005-1-12 (#2070468@0)
        • 作用是告诉观众，这个captioning是可以被关掉的。 -vinatca(nofuture); 2005-1-13 (#2072948@0)
          • closed到底是“可以被关掉的”意思还是“关闭的”或“保密”的意思？如果是“可以被关掉的”意思，应该是closable才对。。。 -black5k(黑五类); 2005-1-13 (#2072968@0)
            • 恕我无知，没见过closable这个单词。 -vinatca(nofuture); 2005-1-13 (#2072976@0)
              • 没有么？那不怨俺，都怪英语词汇太简单。。。还是汉语词汇丰富，叫“可选字幕”不就成了？ -black5k(黑五类); 2005-1-13 (#2072992@0)
            • 这么认真啊？：）哪就认为是被关掉的，但是偶尔（对我来说是，经常）可以打开，OPENABLE？ -d2o(Native BACnet); 2005-1-13 (#2072981@0)
            • d2o是说，他本来是 closed的，看不见的，不影响画面的，因此不说closable。如果一上来就是看得见的，可能用closable比较合适。 -x888(让我做个梦吧); 2005-1-13 (#2072985@0)
              • 这个解释好。make sense. -vinatca(nofuture); 2005-1-13 (#2073001@0)
    • 上纲上线又来了，不少新移民连我自己，在看closed caption来提高听力，但最初以立法的形式要求电视节目加隐含字幕，却是为了聋哑人的很重要的人权：知情权。想想弱势人群的处境，就知一个社会的现代化，正是一个克服弱肉强食的过程。 -table(桌子来了); 2005-1-12 (#2070423@0)
      • 其实，新移民本身就是半拉残疾啊。。。不少父母来了，就自嘲说自己是聋子，哑巴加瘸子，所以只能整天呆在家里。。。 -black5k(黑五类); 2005-1-12 (#2070508@0)
        • 发人深省的是，许多已经身处弱势的同胞，一样抱着［弱肉强食］的观点，看看这个坛子上对同性婚姻的谈论，就知道我在说什么了。 -littlesong(_); 2005-1-12 (#2070531@0)
    • 谈责任----不喜欢弱肉强食这个词.我觉得弱也是自己负责,强也是自己负责.天这么高,海这么深,你多强多弱都是自己决定的.自己走的路,自己负责.你选择了同性婚姻,那么你就应该知道前面的路是什么. -nini1998(妮妮--满月); 2005-1-12 (#2070568@0)
      • :DDD -mrblack(黑森); 2005-1-12 (#2070571@0)
      • 这种[弱也是自己负责,强也是自己负责]观点很有代表性，也肯定特别有市场。按这个逻辑，所以呀，聋哑是弱，是你自己的事，你自己负责，桌子ＭＭ说的，立法强制电视节目加字幕，岂不是劳民伤财？ -littlesong(_); 2005-1-12 (#2070582@0)
        • 不自己负责难道让网上所有的人负责?自己摊上了就想办法解决,非要让所有人捐款啊,照顾啊,帮助啊,我认为就不对.别人可以捐款帮助照顾,但是是义务,不是责任., -nini1998(妮妮--满月); 2005-1-12 (#2070607@0)
          • (#2070508) -table(桌子来了); 2005-1-13 (#2072453@0)
    • 你这句话好象不对吧,回去再仔细听听,少了几个关键字 -salas88(陈浩南，铜锣湾老大); 2005-1-13 (#2072873@0)
      • 没有啊。。。不是听来的，是节目结束后打出字幕这样写着的，意思俺明白，就是说这个节目是由那个那个公司提供的字幕。。。俺只是不明白为什么要用closed这个词 -black5k(黑五类); 2005-1-13 (#2072890@0)
        • Closed captioning is so called because they are optional: hearing viewers need not see them. Consider the meaning of close:- http://dictionary.reference.com/search?q=closed -canadiantire(轮胎-扎了三个钉子！); 2005-1-13 (#2072938@0)
        • There is also so called: open-captioning, different from close-captioning, open-caption cannot be "closed", it is "burned" on video tapes. -canadiantire(轮胎-扎了三个钉子！); 2005-1-13 (#2072946@0)
          • you are such a lucky guy! -black5k(黑五类); 2005-1-13 {22} (#2072971@0)
            。。。是同一天扎的么？
            • Fortunately, no. -canadiantire(轮胎-扎了三个钉子！); 2005-1-13 (#2072989@0)
              • 呵呵，俺怎么觉得no是unfortunately呢？。。。还不如一天都扎了，修一回就成了 -black5k(黑五类); 2005-1-13 (#2073006@0)
                • uh, maybe you're right. :-D -canadiantire(轮胎-扎了三个钉子！); 2005-1-13 (#2073016@0)
        • 这句话没有谓语,我听到的中间有个"closed captioning is brought you by...." 可能你看到的跟我不一样 -salas88(陈浩南，铜锣湾老大); 2005-1-18 (#2081407@0)
          • 你这句话好象不对吧,回去再仔细听听,少了个to字。。。 -black5k(黑五类); 2005-1-18 {189} (#2081421@0)
            一般小混混说：Closed captioning of this program is brought to you by salas88.

            小头目说：Closed captioning is brought to you by xiaotoumu.

            老大们一般都说：Closed captioning by black5k.
            • 倒！倒！倒！ -salas88(陈浩南，铜锣湾老大); 2005-1-18 (#2081946@0)
    • 我认为，closed 意思是“紧跟着”，就是说字幕是紧随着对白出现的。 -kipling(黑区杀手); 2005-1-15 (#2076194@0)
      • 讨论那么旧了，怎么还弄不明白啊。closed caption 是给聋人使用的，本地人喜欢叫那字幕为 crawl , 我们喜欢叫 subtitle. -ab0203(ab0203); 2005-1-16 (#2077598@0)
        • 大概意思明白，但closed是什么意思，你仔细想过吗？ -kipling(黑区杀手); 2005-1-21 (#2086824@0)

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