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TIL the 2002 art thriller film Irréversible deliberately added an extremely low frequency 27 Hz sound to the first 30 minutes of its soundtrack to induce nausea and anxiety in audience goers. The ...
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The original was posted on /r/todayilearned by /u/Kyzzz on 2026-05-15 15:39:16+00:00.

Original Title: TIL the 2002 art thriller film Irréversible deliberately added an extremely low frequency 27 Hz sound to the first 30 minutes of its soundtrack to induce nausea and anxiety in audience goers. The sound is not immediately perceptible, but powerful enough to evoke a negative physical response

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