Simultaneous Interpretation is widely used for events and meetings since it is performed in real time; i.e., the message is rendered while the speaker is still talking, which means that the original discourse and the interpretation overlap.
In simultaneous interpretation, the interpreters sit in small sound isolation booths in the back of the conference room or in a remote setting and listen to the conference on headsets while simultaneously interpreting into a microphone.
This type of interpretation requires the interpreter take notes and use his/her short-term memory to render what was said into the target language as soon as the speaker stops his/her speech. Consecutive interpretation can extend the length of a speech.
In this type of interpretation, the interpreter sits next to the person or group of people (maximum 4) who needs the translation and whispers the interpretation in real time.