Mid-Air Parametric Audio — Ultrasonic Nonlinear Demodulation & Carrier Physics
40 kHz ultrasonic carrier self-demodulates in mid-air via non-linear air compressibility (β=1.2) governed by Berktay's solution. Visualise and synthesize mid-air acoustic demodulation.
Scene 112 of 113 in the StopBeingParanoid interactive 3D research collection. Requires JavaScript and WebGL2 for the interactive visualisation.
Related scenes
Elsewhere on this site
If any of this frightens you: this site documents what signal physics makes possible in a laboratory, which is not evidence about what is happening to any individual. If you feel watched, targeted or unsafe, that distress is real and treatable. Read about paranoia, mental health and how to get help, or call a free 24/7 line — 988 in the US and Canada, 116 123 in the UK and Norway, 13 11 14 in Australia, or find your country at findahelpline.com.