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When the MC fixes a caption line from the stage

What happens on screen the moment the MC hits a one-word hot-fix mid-talk — a concrete look at glossary injection.

May 1, 2026·4 min read

barotalk's live control room has a small UI called the operator palette. As captions flow line by line, clicking an awkward word applies a hot-fix that takes effect from the very next caption. The speaker keeps talking, none the wiser.

What one click sets off

When the operator clicks a word in an awkward caption, a temporary mapping is added to the glossary and the broadcast server updates OpenAI's instructions immediately. The new mapping applies from the next utterance. The average update takes 0.3 seconds — done before the speaker starts the next sentence.

“Operators don't so much read captions as listen to them. When a line sounds off, your hand moves on instinct.” — event operations team

Saved to the glossary when the event ends

Every word hot-fixed during the event is carried over to the next one after it ends, with a single one-line confirm: 'Save this glossary permanently?'. The more events you run in the same domain, the fewer hot-fixes you need — that's how it should work.

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