Language & WorldHow it works
How simultaneous interpreters listen and speak at the same time.
Simultaneous interpreters sit in a soundproof booth, hear the speaker through headphones and speak into a microphone with a 2 to 3 second lag. Because the double load is enormous, they work in pairs and switch every 20 to 30 minutes. The technique was introduced at scale at the Nuremberg trials in 1945/46, in four languages at once.
Useful: If you're being interpreted, keep pace and syntax simple and say numbers twice.
Source: en.wikipedia.org