A pre-lap is a SceneTransition where the sound from the scene transitions before the visuals do, so the sound of the second scene momentarily coincides with the visuals from the first scene.

Because the viewer will naturally try to connect what they are seeing with what they are hearing, it is often used to portray a logical connection between the two scenes.

This is also sometimes employed in comics by including speech from one scene as narration boxes over the preceding scene.

The reverse of this is the post-lap.
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!!Examples:

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[[folder:Films -- Animation]]
* In ''WesternAnimation/TurningRed'', at the end of the scene where Mei's grandma and aunties arrive, the Cha Cha Slide can be heard which is playing InUniverse at Tyler's birthday party in the next scene.
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[[folder:Films -- Live-Action]]
* ''Film/TheGraduate'', where Dustin Hoffman is in the bottom of a pool but you hear him having a phone conversation with Mrs. Robinson in the following scene.
* ''Film/IndianaJonesAndTheLastCrusade''. As Indy is looking at a road sign leading to Berlin, the sound of drums is heard. As the scene changes to Berlin, the drums fade into parade music as Nazi soldiers march around and burn books.
* An interesting one in ''Franchise/StarWars: Episode I - Film/ThePhantomMenace'': When Shmi overhears Qui-Gon discussing the implications of Anakin's impossibly high midi-chlorian count, Darth Maul's Sith chanting theme begins, serving as a lampshade on the conversation before transitioning to Maul's arrival.
* ''Film/LawrenceOfArabia'', where the sound of a train whistle is heard over the end of the previous scene. The UrExample and TropeMaker.
* ''Film/{{Primer}}'' has a scene in which an ice machine is activated on a refrigerator, and a noise is heard. Said noise turns out to be construction equipment from the next scene, where the protagonists are trying to build a device in the garage.
* ''Film/ScaryMovie 3'' parodies this during its spoof of ''Film/TheRing,'' with the main character ''[[MediumAwareness reacting]]'' to a [[CatScare sudden boat horn]] piped in from the next scene.
* ''Film/{{eXistenZ}}'' post-laps Geller and Pikul's breathy make-out sounds over a dead amphibian that dangles from Ted Pikul's hand.
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[[folder:Live-Action TV]]
* In ''Series/KamenRiderKuuga'' Episode 7, a prelap of a bee's wings bridges Enokida's explanation of the MonsterOfTheWeek to [[TheHero Yusuke]] and [[FriendOnTheForce Ichijou]], to said MonsterOfTheWeek's current killing spree in progress.
%%* Constantly used in ''Series/EastEnders''.
* ''Series/{{Lost}}'' uses it often, particularly for transitioning to flashbacks in the early episodes, before the trademark "woosh" noise was added.
* ''Series/{{Person of Interest}}'' uses this to move from scene to scene with the sounds of conversations overheard through telephones, recorders, and so forth, coupled with a visual transition pinpointing the next location and zooming in.
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[[folder:Web Original]]
* In the Cracked video series "WebVideo/AfterHours," David attempts to discuss with an unwilling Soren the immorality of cereal mascots. The two of them (three including Michael) are in the bathroom, and Soren is using the urinal. David is just standing behind him badgering. The scene ends with a sound resembling a public toilet flushing; it turns out to be Katie spraying whipped cream directly into her mouth.
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[[folder:Western Animation]]
* This trope, combined with TwistedEchoCut, is a staple of ''WesternAnimation/{{Archer}}'''s comedic style.
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