3D sound with professor Choueiri

It's great to see that people around the world is constantly inventing and re-inventing stuff. This video remembered me something I read about not so long ago, Hypersonic sound featured on some Blu-rays, at technology invented by Shoji Yamashiro the guy behind the awesome OST of anime film AKIRA written and directed by Katsuhiro Otomo. Here the official Yamashiro's page where Hypersonic effect is explained.