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.
I bet something like this would have been huge back in the days of analog recording like with the beastie boys having to use tape loops to make certain sounds, I wonder what would have got made by the bands that had to do so much work outside of a studio