Audio Illusions: infinitely rising/falling pitch (Shepard-Risset)

This is an excerpt from a series presenting a variety of fascinating psychoacoustic phenomena and illusions. Shepard-Risset tones seem to rise or fall forever. This video explains the magic. Donation links: http://lacinato.com/donate |   / lacinato   Series playlist:    • 42 Audio Illusions & Phenomena -- Psychoac...   This video was made in Reaper and Blender, with final editing/compositing done in Davinci Resolve. Some custom software was written to generate various tones and such, and this was done in JSFX in Reaper.