Acoustic Beamforming: Audio Spotlight Detection — Phased Array, Parametric Audio, Live Position Test

Scene 90 — How delay-and-sum phased arrays and 40 kHz parametric audio create directed sound heard only by the target. Live browser position-correlation test: measure ΔdB between two positions to identify beam signatures. Based on Berktay 1965, Pompei 2002, Nakashima 2006.

Scene 90 of 109 in the StopBeingParanoid interactive 3D research collection. Requires JavaScript and WebGL2 for the interactive visualisation.

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