What does ambient sound refer to?

Ambient sound refers to the background noise of an environment. This type of sound helps to create atmosphere and realism within a scene, enhancing the viewer's immersion in the setting. For example, the rustling of leaves in a forest, the distant hum of a city, or the subtle sounds of nature in a rural landscape all contribute to the overall soundscape of a video and set the mood without drawing attention away from the primary action or dialogue.

The ambient sound is crucial because it adds depth to the viewing experience, making environments feel more alive and vibrant. This contrasts with the other choices; character speech primarily conveys dialogue and narrative, specific sounds that match on-screen actions (like footsteps or door slams) focus on synchronization with visual elements, and music for transitions serves the purpose of guiding emotional shifts or scene changes rather than creating an immersive environment.