How does interpretation work at the United Nations?

The United Nations uses simultaneous interpretation, which means translating on the fly without breaks (as opposed to consecutive interpretation, in which the speaker and translator alternate). At any given moment, the U.N. Interpretation Service has a dozen interpreters working six booths—one for every official language. The pair of interpreters in the English booth translates into English, the French booth translates into French, and so on. Attendees can then listen to the interpretations on headphones, clicking across channels for different languages. The job is exhausting, so interpreters will usually switch off every 20 minutes or so. They can also take breaks when the speech is in their language, since no translation is necessary. …

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