Architectural acoustic design concepts for drama theaters.

Abstract

The application of impulse response theory with architectural design principles provides a foundation for the acoustical design of drama theaters, linking the perceptions of the audience, acoustical measurements made in completed rooms, and acoustical modeling and simulations of rooms being designed. (1) Provide a quiet environment free from exterior and equipment noise; (2) design each interior surface of the room to be acoustically productive by having it contribute essential elements to the idealized impulse response of a drama theater; (3) use layered architectural/acoustic systems that accomplish multiple functions within one assembly that at once provides for sound reflection and diffusion of sounds to the audience on its interior face, reduces sounds from outside the building with its exterior skin, includes space for inlet and attenuation of return air systems within wall cavities, allows transit of HVAC and building structural systems within it, and has a variable layer at its outermost surface that can adjust the interior acoustical response of the room for varying performance types. The construction of the room impulse response element by element as the design of the theater emerges allows a vehicle for the integration of architecture, acoustics, and engineering systems to occur during design.