Subtitle is the text used on televisions to represent the words and sounds heard on a television show or commercial. Closed captioning is intended to allow the hearing impaired to easily interpret the show, movie, or commercial on television. Captions are recorded on a hidden video line in the program. The text is only visible when the viewer activates the cable box on their cable or television set-top box. The option is usually found on the menu. You can also temporarily turn it on with the mute button depending on how your TV is connected. Open captions, on the other hand, are always visible to all viewers.
Closed captioning can also be useful when the viewer needs to mute the TV and still wants to know what is going on. It is ideal for use in a public environment such as a restaurant, bar, doctor’s office, etc. without being too distracting. Closed captions are a great tool to help people learn a new language.
Almost all countries seem to use the words Subtitles and Subtitles interchangeably. Except in the US and Canada. In the United States and Canada. Captions are used to display all spoken words on the screen and to describe sounds or music in the program. The captions are intended to help the hearing impaired understand what is happening. It can also be useful when you need to press the mute button for whatever reason and you still want to know what is going on. While subtitles are used for when the audience can hear the program, but does not understand what is being said. This is used a lot for different languages and sometimes even when the speaker is difficult to understand.
There are two ways closed captioning works. For pre-recorded shows, the files are inserted into the video before going to the TV station. This allows words and sounds to be placed in the program exactly when the sound should be produced. Captions can also be checked for errors. In the case of live television, the captions are written by a steno catcher. The stenographer types shorthand into a shorthand machine which is then passed to a computer which translates it back into readable text on the screen. This type has a slight delay and usually only includes the words that are spoken.