What does the term 'voiceover' mean in the context of video and film?

In the context of video and film, the term 'voiceover' refers specifically to a commentary that is heard in the audio track of a film or video but does not feature the speaker visually on screen. This technique is often used to convey thoughts, narrate a story, or provide information that complements the visuals, enhancing the storytelling aspect without the need for the narrator to be physically present. Voiceovers are commonly employed for character development, setting the mood, or offering insight into the plot in a more intimate manner.

The other choices do not accurately represent the definition of voiceover. A background score involves music and sound design that supports the scene but does not typically include spoken commentary. Sound effects pertain to environmental or situational sounds added during editing, which are distinct from the vocal narration found in voiceovers. Clips of an actor's dialogue may be part of the film's audio but when we refer to voiceovers, we are emphasizing the use of narrative voice that is separate from on-screen dialogue or visuals.