Music visualization. Print screen of preset included in MilkDrop version 1.04d Visualization techniques range from simple ones (e.g., a simulation of an oscilloscope display) to elaborate ones, which often include a plurality of composited effects.
The changes in the music's loudness and frequency spectrum are among the properties used as input to the visualization. Visualizing Music. Musical DNA' Turns Music Lessons Into 3D Light Show. BeatBearing demo.