How does live closed captioning work?

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asked Jan 5, 2019 in Television by Johnrisenet (280 points)
How does live closed captioning work?

1 Answer

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answered Jan 6, 2019 by Flooritje (270 points)
Live closed captioning for Television is computerized and the closed captioning is embedded in the television signal which then becomes visible when you use a special decoder that can be a separate device or installed within the Television itself.

The computerized system detects the words being spoken on the televisions audio and then decodes it and attempts to show what's being said.

Sometimes Closed captioning can be wrong and say things that are not being said on the Television.

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