Squareeater uses a combination of binaural beats and psychostrobic flicker effects to attempt to induce brainwave entrainment in the viewer. Binaural beats are achieved by putting a tone in one ear of the listener and a slightly different tone in the other. For example, if the left ear is hearing a sine wave tone of 397hz (cycles per second) and the right is hearing 403hz, the brain perceives a pulse of 6hz, the difference in the frequencies.
Sliding Binaural Beat MP3 Files
What are Binaural Beats?