We did experiments with the Boston Symphony for many years where we measured the angles of incidence of sound arriving at the ears of the audience, then took the measurements back to MIT and analyzed them.
-- Amar Bose
   
Amar Bose   Name:
Amar Bose
Type:
Inventor
Nationality:
American
Birth:
November 2, 1929
https://www.nutquote.com/quote/Amar_Bose