What is a sound bridge in film?

Sound bridge refers to the audio from the last shot of one scene continuing over the first of the next, thereby creating a link or continuity between the scenes. The purpose of a sound bridge is to smooth over any potential choppiness or discontinuity that may arise when cutting between two different shots or scenes, and to help the audience perceive the transition as a seamless flow of action.

Some specific uses and reasons for employing sound bridges include:

Creating transitions: It can be used to create a smooth and fluid transition between two scenes or shots. For instance, the dialogue, music, or ambient sound from one scene can continue into the next one.

Bridging time lapses: When there's a significant time gap between two events or scenes, a sound bridge can help bridge the gap and fill the auditory void.

Highlighting continuity: Sound bridges can emphasize continuity and help maintain a consistent atmosphere throughout the movie.

Fostering emotional connections: Sound bridges can bridge emotional moments and create a stronger emotional impact. For example, a sentimental piece of background music can carry over from one scene to another, intensifying the emotional thread.

Maintaining suspense or mood: By sustaining a mood or suspenseful ambiance using similar music or sound effects across separate shots or scenes.