Voice-over may refer to any of the following:
1. A voice-over is the voice of an unseen person recorded over a movie or video using video editing software. For example, someone may record themselves playing a game and afterwords record themselves on a microphone describing what they were doing. Once complete, the video becomes more helpful to the viewer because the person doing the voice over can describe what they were thinking or how they did something.
2. Voice-over is a narration that is played with a video to convey extra information about the scene.
3. VoiceOver is a screen reader utility that is built into the operating systems of Apple Inc.'s devices, including the iMac, MacBook, iPhone, iPad, iPod, and Apple TV. Created for those who are who have visual impairments or dyslexia, VoiceOver allows users to access their with spoken commands. VoiceOver was first released with macOS X 10.4 Tiger on April 29, 2005, about five years after Microsoft Narrator.
VoiceOver allows users to access their keyboards on applicable devices.