Who Is The Founder Of Architectural Acoustics?

Architectural acoustics is a branch of architecture in which the way sound is propagated in a structure and the way it can be modified in different ways is studied. The field is a highly specialized one first being studied in a systematic way by Wallace Clement Sabine (1868-1919) a physicist from Richmond, Ohio in the United States. His famous law of acoustics known popularly as the Sabine Law states that the product of the time taken by sound to resonate in a room and the sound absorbing factor taken as a whole in terms of area is proportional to the overall volume of the room.
Sabine's greatest contribution to architectural acoustics came in the form of the Boston Symphony Hall noted for its sound effects resulting from its design and regarded as one of the best places to hear concerts in the world.        
His theories and designs were based on several experiments in which he studied the time taken by sound to drop to the level of inaudibility from the point of its origin for which he studied several concert halls as well as lecture halls where his observations led to the conclusion that words where the echo effect is more pronounced are audible for as long as 5 seconds the reverberation time of which can be cut by integrating sound absorbing material in the hall.
Sabine was a noted professor of Physics at Harvard University where he taught in a life long career.