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The iconic Law & Order dun dun sound effect from the TV series, composed by Mike Post. Creators use it for dramatic reveals, crime jokes and scene transitions.

This is the famous two-note transitional sting from Law & Order, often written as dun dun or chung chung. Created by composer Mike Post, it is not a simple drum hit but a layered, percussive clang with a deep, metallic resonance that cuts through silence. Lasting just two seconds, it signals that the story has shifted to a new scene, a new suspect, or a serious turn in the investigation. Viewers instantly recognise it even without visuals, and that recognition creates instant tension, authority and a sense that something important is about to be revealed.

The sound comes from the Law & Order franchise created by Dick Wolf, which premiered on NBC in 1990, with Law & Order: Special Victims Unit following in 1999. Composer Mike Post created the signature sting for scene transitions throughout the series and its spin-offs. Because episodes rely on rapid cuts between police work and courtroom action, audiences heard it constantly for decades. Its familiarity made it an easy shorthand online, where editors reuse it in parodies, reaction videos and memes whenever an everyday moment needs mock-serious legal weight.

專業使用技巧

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Place the dun dun exactly on a hard cut to a new location or a shocked reaction face, with half a second of silence before it. Let the two hits land clean, do not loop it or bury it under music or dialogue.

使用案例

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  • Drop it before revealing a messy roommate crime scene.
  • Use it when a friend gets caught lying on camera.
  • Add it to true crime parodies for instant drama.
  • Play it after someone confesses to eating the leftovers.

常見問題

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What is the Law & Order dun dun sound?
The dun dun is a two-second transitional sound effect used in Law & Order and its spin-offs. Composer Mike Post created the layered percussive sting to mark scene changes, and its deep, clang-like hits have become the franchise's most recognisable audio cue.
Who created the Law & Order sound effect?
Composer Mike Post created it for the original Law & Order series. The same sting carried over to Special Victims Unit and other spin-offs, where it is heard at scene transitions alongside the show's distinctive theme music and opening narration.
Why do people use the dun dun sound in memes?
People use it because almost everyone recognises the two hits instantly, even without seeing the show. Dropping it before a reveal, accusation or awkward confession makes an ordinary moment feel like a dramatic crime scene, which creates the joke.

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