Design issues of time-based phenomena and the notion of a persistent model: A parametric exploration of acoustic performance

This chapter reflects on how sound can become part the architectural design process. Sound is a complex phenomenon that traditional architectural drawing tools do not capture well. Parametric tools allow for the encoding of relationships between material, geometry, and acoustic performance in a digital model. Computational simulation tools can give visual and aural feedback on how designs perform. These tools give architects the ability to contemplate the sound of architectural propositions. Different sounds, sound positions, and listener positions can be tested, as can different geometric and material configurations. Using these tools architects can design for sound. Sound should be a part of the architectural design process and in order for it to be a useful design parameter; it must be able to be considered in the digital modeling environment. We form a spatial impression of our surroundings by the way the environment filters sounds. Spatial geometry and material properties in our environment are understood through listening to them. As sounds from multiple sources interact with walls, floors and other architectural elements, a space takes on an aural character. Through an increased awareness and ability to design for the aural experience, architects can achieve more exciting, varied, and better performing acoustic spaces.