Robert Greene wrote:
I think this idea was invented by Christian Huygens and Young and Fresnel. Once one knows that sound is a wave phenomenon, there is nothing left to invent--except the details of how the sound goes around the head. Practical implementation especially in the analogue world is another story!
I throw in one more name from a later date, 1989. Don Keele wrote in his AES paper about a physical baffle between the two loudspeakers. The baffle almost reached the nose of the listener. Eero Aro _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound