Why do we require voiceover?
The most widely used form of voice over is in films, tv and documentaries. There is an increasing need of voice over in the film and tv industry. Voice-over technique is used to give voices and personalities to animated characters.
In radio, voice-overs are an integral part of the creation of the radio programme. The voice over artist might be used to remind listeners of the station name or as characters to enhance or develop show content.
In film, the film-maker places the sound of a human voice (or voices) over images shown on the screen that may or may not be related to the words that are being spoken. Consequently, voice-overs are sometimes used to create ironic counterpoint. Also, sometimes they can be random voices not directly connected to the people seen on the screen.
In works of fiction, the voice-over is often by a character reflecting back on his or her past, or by a person external to the story who usually has a more complete knowledge of the events in the film than the other characters.
The voice-over has many applications in non-fiction as well. Television news is often presented as a series of video clips of newsworthy events, with voice-over by the reporters describing the significance of the scenes being presented; these are interspersed with straight video of the news anchors describing stories for which video is not shown.
Live sports broadcasts are usually shown as extensive voice-overs by expert announcers over video of the sporting event.
The commercial use of voice-over in tv advertising has been popular since the beginning of radio broadcasting.