Hackers' Pub

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Hacker News 100 @hn100@social.lansky.name

6/18/2025, 3:55:08 AM

Public

3D-printed device splits white noise into an acoustic rainbow without power

Link: https://phys.org/news/2025-06-3d-device-white-noise-acoustic.html
Discussion: https://news.ycombinator.com/item?id=44282953

3D-printed device splits white noise into an acoustic rainbow without electricity

In a study published in Science Advances, researchers from Technical University of Denmark and Universidad Politécnica de Madrid demonstrate a new device called an acoustic rainbow emitter (ARE) that takes in broadband white-noise signals from a point source that radiates sound equally in all directions and scatters it up so that different sound frequencies or pitches are emitted.

phys.org

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