” Harman, the audio company that was purchased by Samsung two years ago, has filed a patent for a sound system that uses robots to create the impression of surround sound (via Variety). The patent details how the speakers could move and hover around the user with the help of quadcopters or even “vertical gas jet based propulsion mobility platforms” in an attempt to provide better audio in a virtual environment…”

Source:
http://www.impactlab.net/2019/03/13/harman-just-patented-a-futuristic-system-of-flying-robot-speakers-for-3d-audio/