Shown above: an anechoic chamber - a space without any echo. A room designed to absorb reflections of sound. Next to that - a diagram of two parabolic mirrors, facing each outher. Parabolic mirrors are capable of fusing spaces that are separated by up to a quarter mile - using echo, and reflected sound.
Both of these are tools to use for understanding sound, sound waves, sound ecology, and sound urbanism.
Above: installations by artist Erwin Redl. Erwin is an internationally known installation artist who also composes soundworks, and frequently for his LED light installations. Sound Urbanism and Sound Ecology.
Above: Le Corbusier and Iannis Xenakis developed 'the Modulor', an intelligent proportioning system. Edgar Varese worked closely with Le Corbusier and also with Xenakis, developing a score for their Phillips Pavilion.
Phillips Pavilion was a beautiful form, designed to project sound. We will never know what the Pavilion was like. As an idea, Phillips Pavilion has effected change in architecture, incluiding contemporary movements such as sound urbanism, and sound ecology.