voice-over

noun
UK /ˈvɔɪs əʊvə/
US /ˈvɔɪs oʊvər/

A voice-over is when someone talks over a video or film without being seen.

The cartoon used a funny voice-over for the talking dog.


OTHER MEANINGS

2. The spoken words themselves that are recorded over a video.

The director asked her to redo the voice-over for the opening scene.

3. The job or work of a person who records such narration.

He makes a living doing voice-over for commercials.

4. To add spoken narration to a film or video.

They decided to voice-over the documentary in three languages.