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Originally Posted by jimpiano
Most newscasts are closed captioned via the written scripts fed to the anchors via the teleprompter.
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That is simply not true also. You really need to give this up as Garth suggested you obviously don't understand the technology of TV or sound.
Closed caption is done usually off site and the feed is captioned back live. They listen to what's being said and feed it back to the TV stations.
You can't go by a teleprompter because the newsreporter might change what's on the prompter or they might cut away to a network broadcast etc,.
We used the same company that does all of ESPN and Fox news and they did our captioning for our TV broadcasts and its pretty neat how accurate they actually are.
The 5-7 seconds of lag time allow numerous types of editing to the sound that is broadcast. We simply think its live.
Turn on a radio broadcast of the game that is on TV and listen to the difference - then turn on the TV broadcast and you will see an abundance of edited sounds, etc.,
I can do the same on my MAC computer as we broadcast our TV each week - add reverb, sound effects, what ever I can think of, it can be added.
Thansk
David