At it's core, GulpGulp! is a procedural audio generator which 'feeds' on two-dimensional image data. Based on brightness contrasts found in the image and other various programmable methods, GulpGulp! creates an audio signal comprised of various wave forms, not limited to pure sine waves, squares, triangles, saws, and noise. GulpGulp! further varies the process by assigning special waveforms to various colors and contours, making each and every input a completely different aural experience. Of course, all of this assignment is programmable to the end-user so that a single image has an infinite set of possibilities.
At the recital, I will be taking photographs of various patrons and using those images as the input data to create a truly unique experience. To further increase the experience for the guests, GulpGulp! creates a realtime visual experience which maps to the audio data and detected-contours to help the audience identify the source-material, creating a thought-provoking and entertaining listening and viewing experience.
Here I have a short video sampling three different images that were created using an older version of the algorithm. To save time, these images were only set to be twenty seconds in length, but a more dynamic and richer experience is found with longer durations and higher resolution images.
- Josh Whelchel
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