Anthony Mattox Interaction Design + Digital Art

Although Processing does not have the ability to process audio on it’s own there are a few libraries which can be used to add such features. I’ve been experimenting with the ESS library but you can find others from the processing libraries page. Gathering Data from live or recorded sound can be a powerful tool for artists and designers in creating interactive applications, audio visualizers, music videos, or anything else that could involve an interaction with sound. Getting the data is fairly straight forward and the script returns an array of data updated each frame. This demonstration with display the data very simply, however, the numbers could be applied to any attribute in any system to produce different effects.

Here are the steps to creating a simple script to get the spectrum data from a microphone into a processing sketch. Using pre-recorded sound is similar. Once the data is in the sketch it can be manipulated and used to generate graphics or effect other aspects of a program including complex forms in 3d space using the OpenGL or P3D libraries. Read On »

A variation on a script I’ve been working with to generate a 3d visualization of an audio spectrum. The color and position of the first row of cubes is based on spectrum values and then passed down the array with a decay factor. Created with Processing using the OpenGL library to create the 3d environment and ESS to gather sound data.

Another variation renders a 3d grid rather than an array of cubes.

This Processing application uses the audio spectrum values to generate a 3d visualization. The first row of the 2d array gets it’s values from the audio input and all subsequent rows take the previous one’s each frame, multiplied by a decay factor. the result is this undulation 3d grid. The script uses the OpenGL library to handle the 3d environment and the ESS sound library to get the audio spectrum.