But a hackier way would be to build a parametric speaker that focuses soundwaves into a narrow beam like [Shane] did with this ultrasonic sound gun. As the directivity of a soundwave depends on ...

I recently attended a screening of the movie Top Gun: Maverick at New York City’s House of Sound, a showcase for state-of-the-art home theater and the best stereo speakers that was constructed ...

The design files for the sound circuit are in a Google drive ... was already shiny silver and the lens holder even fit the gun’s speaker. An old cell phone battery powers the whole thing.