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This is cool. Add it to the ever growing list of impractical and expensive things that I want to own in spite of it. Historically speaking this sort of reminds me of the wall of sound: https://en.wikipedia.org/wiki/Wall_of_Sound Totally different and way more put together but the scale evokes a similar sensation.

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If anyone is close enough to get to the Stanford Campus near the end of Spring quarter, I strongly going to CCRMA’s annual two-night concert series in the Bing Studio. They assemble their GRAIL around the audience, with members of CCRMA (and visitors) performing.

https://ccrma.stanford.edu/home

https://lac.linuxaudio.org/2019/doc/lopez.pdf

I really liked the individualism of the audio spotlight [0] but I have never seen one in use yet.

[0] https://www.holosonics.com/

I have experienced it at several Best Buy stores in the video games section to advertise the various Call of Duty games over the past several years. You can only barely hear it unless you are standing directly in front of the panel.

The small visitor center at the Amazon Spheres in Seattle has a whole bunch of them.

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