Modern media content consists of video and audio material, but both are usually not recorded simultaneously. Video content and audio are usually prepared separately with later addition of the sound sequence to the relevant video sequence – this is called voice over. In other words, voice over (also referred to as off-camera/off-stage commentary) is a distinct production technique involving the addition of pre-recorded voice to media pieces. For the recording of voice-over, individuals read the script or speak with other people to create dialogues. Dialogues for the video products may be recorded synchronously or asynchronously, with the later sound track’s editing to create a fully fitted accompanying sound.
Voiceovers are used in many areas including films and animated cartoons, games, on-hold messages, and automatically repeated audio announcement. The voice over technique is broadly used to give voices of celebrities to the animated characters; the style and tone of the voice over often shapes their distinct personalities. The creative power of voice over is used to add sounds and human voices in a certain manner, like the omnipresent narrator, the sound of a character’s thoughts, etc. Educational and descriptive voice over is typical for TV news and live sports broadcasts, while the commercial voice over is a traditional feature of ads that display certain video content and an accompanying commercial audio message. Moreover, voice over is popular for the dubbing and revoicing of media content in several languages.