Kal Rubinson Posted November 18, 2020 Share Posted November 18, 2020 Not new. https://www.electronicdesign.com/technologies/displays/article/21763155/focus-sound-just-like-a-laser-beam https://www.nytimes.com/2001/05/15/science/an-audio-spotlight-creates-a-personal-wall-of-sound.html sphinxsix 1 Kal Rubinson Senior Contributing Editor, Stereophile Link to comment
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