I am a certified translator and can provide sworn translation from English, German and French into Italian.
The speaker speaks for a few minutes, while the interpreter takes notes. After that the interpreter renders the speech in the target language. It is not suitable for multiple-hour events because it would make them too long. Furthermore, it is not advisable for meetings with a high number of participants.
Ideal during business negotiations, B2B, B2C. The interpreter translates every turn of the conversation between the parties.
The interpreter sits in a soundproofed booth translating the speakers simultaneously in a conference. The public listen to the translation through headphones. It is mainly used during events with many participants.
The interpreter sits next to the person whispering in his/her ear the translation simultaneously.
The interpreter translates during the signature of a notarial act.
Interpreting service provided during the celebration of a wedding.