A Sound Bridge is when the sound comes in before the images of the next scene (e.g. in a cut from a quiet room to a busy street. The noise from the street will be heard before it is seen.) Sound bridges are often used to get the attention of the characters.
Mary Shelly’s Frankenstein: The men are arguing while chopping the ice away from their boat when Dr. Frankenstein shows up asking for help. No one takes much notice until the screams of the monster are heard taking the camera and characters to look away across the ice.
Spider-Man: Unlike most films the visual here comes before the audio. When the green goblin sees spidey he says ‘no one says no to me’ but the sound of him saying this carry’s over to see Norman Osborne standing in a lift.