In episode 139 of the THD Podcast, Dr F Joseph Pompei, the founder of Holosonics, joins to introduce how they modulate ultrasonic frequencies to create localized ‘audio spotlights’.

Holosonics is a pioneer in highly targeted sound through its patented Audio Spotlight technology. Unlike traditional speakers that broadcast sound in all directions, Holosonics creates a narrow, flashlight-like beam of audio. The system operates by converting audio into ultrasonic waves, which have wavelengths only a few millimeters long. Because these waves are so small, they naturally travel in a laser-like path. As this silent, modulated ultrasound travels through the air, it interacts with air molecules, naturally demodulating into audible sound precisely along its path. Step one foot outside the beam, and the audio vanishes.