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Air raid sirens were installed across Europe during the Second World War and the Cold War as civil defence warnings, and many were kept for testing afterwards. In the Netherlands the sirens, called the luchtalarm, were famously tested at noon on the first Monday of every month, a sound almost every Dutch person recognises instantly. The monthly test ended in 2021, but recordings of the tone live on. Online, the siren has become a staple meme sound for fake emergencies, hype build-ups and over-the-top alerts, exactly the way this clip is used on soundboards today.
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A classic rising-and-falling air raid siren, known in Dutch as a lucht alarm. Creators drop it for emergency memes, dramatic reveals and warning jokes in edits and streams.
This is the unmistakable wail of an air raid siren: a loud, oscillating tone that climbs to a piercing peak and then sinks back down, repeating in slow waves. It sounds urgent and a little ominous, the kind of noise that makes a viewer instantly tense up or look around for trouble. Heard in a meme or an edit, that alarm tone turns any small fail, plot twist or incoming disaster into something that feels genuinely dramatic, which is exactly why editors keep reaching for it.
