Voice-over (also known as off-camera or off-stage commentary) is a production technique where a voice—that is not part of the narrative (non-diegetic)—is used in a radio, television production, filmmaking, theatre, or other presentations. The voiceover is read from a script and may be spoken by someone who appears elsewhere in the production or by a specialist voice talent. Synchronous dialogue, where the voiceover is narrating the action that is taking place at the same time, remains the most common technique in voiceovers. Asynchronous, however, is also used in cinema. It is usually prerecor...
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