voice-over

refers to a production technique where a disembodied voice is broadcast live or pre-recorded in radio, television, film, theater and/or presentation.[1] The voice-over may be spoken by someone who also appears on-screen in other segments or it may be performed by a specialist voice actor. Voice-over is also commonly referred to as "off camera" commentary. The term voice-over can also refer to the actual voice actor who performed the recording. The terms voice actor, narrator, voice artist, announcer are all similarly used.