A study by Leo Beranek present in the objective and subjective view of the acoustic quality of concert halls found convenient to divide the rooms in various categories studied. Only three rooms in the world have the highest category: A + which is scheduled for the same Beranek as "Superior." Author: Leo Beranek Publisher: Acoustical Society of America Language: English Year of publication: 1993 Size 5.83 MB Pages: 496 Topic: Acoustic
