For those who have seen speakers without the front grill may have probably noticed that when the volume has been cranked, the speaker membranes will vibrate more obviously. It is through those vibrations that helped Shipsi and Reynsi realize their creation, by pouring paint onto the vibrating membranes.
Since there are loud and soft parts in a song, the intensity and frequency of the vibrations keep changing many times within the song itself, which means the paint that has been “blasted” off the membranes will travel at different velocities and intensity, thus creating a piece of art that is unique to the particular song. Check out the video for a demonstration.
Making of TRU. Vol. 1. from Instrumenti on Vimeo.