On Fri, Jul 07, 2023 at 07:03:35PM +0000, Gareth Fry wrote: > The beam forming is very powerful, but off course does obey the > pesky laws of physics!
:-) I was involved six years or so ago in a similar project at my then employer, the research center of a very big company. The original project goals were defined by a manager who either didn't know the wave equation, or at least failed to understand its consequences. They were not happy when I made that remark. Even with a 2D array covering all the walls you can't control the sound at each point in a 3D space, you just don't have enough degrees of freedom. But people usually don't float in space, they stay on the ground, so in practice the target area is 2D as well. But the array has to be 2D, not just a line or a set of lines, and placed higher than the target area so that each listener has and unobstructed view of the entire array. > Each module of an array has 96 amplifiers and drivers That's more than our entire array. But we did achieve 25 or more dB of separation for frequencies above 300 Hz for targets that were 3 meters apart. > Anyone else bristling with skepticism? Not here. With more than a thousand channels in a well-designed 2D array a lot should be possible. Ciao, -- FA _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on.
