What it is
Simultaneous interpretation lets every delegate follow a speech in their own language at the same moment it is spoken. There is no pause for translation, so a multilingual meeting runs at the normal pace of a single-language meeting.
The equipment chain
A speaker talks into a delegate microphone. The sound goes to interpreters seated in soundproof booths, who listen on headsets and speak the translation into their console. Each language is sent out on its own channel, usually by infrared or radio, and every delegate picks a channel on a small receiver with headphones.
Who you need
For each language you normally need a team of two interpreters who take turns, because the work is very demanding. A technician manages the booths, channels and microphones throughout the day.
Planning tips
Share the agenda, speaker names, presentations and any technical terms with the interpreters in advance. Plan booth space at the back or side of the hall with a clear view of the speakers and screens, and book early for large summits.