In the initial process of developing a shape to use in our speaker design, we used TouchDesigner to see how different shapes react to the sine tone sweep we recorded at Westminster station. In TouchDesigner we have been experimenting with distorting cuboids, ellipsoids, and cylinders. The audio file that was imported into TouchDesigner was the 6 second sine tone sweep from the station. The audio was then visualized in a frequency spectrum and analyzed by the program taking the RMS of the sound and averaging out the maximum and minimum amplitudes. Then a math input is used to control the size-to-output ratio that will manipulate the shape. The path that follows is a shape into noise, which distorts the shape, and then a RMS controller to direct the amplitude of the noise from the audio file. This outputs a final shape, which is distorted in a 6-second loop following the frequency response that occurs from the audio file initially imported.

The issue we are currently facing is rendering a 3-dimensional still image that can be used to design the final cabinet. Right now the file can be exported as a video file, however, we need to decide on a still frame to position the speaker drivers. The final shape will then be divided into 25 separate layers and each layer will be divided into three pieces with a center cavity subtracted from the shape.