Shepard Tone - Developed by psychologist Roger Shepard at Bell Labs, this illusion includes a list of tones that appear to perpetually increase or slide. The illusion is created by Tremendous-positioning pure tones (sine waves) an octave aside. /message /verifyErrors The word in the instance sentence does not match https://dantejylwh.activosblog.com/34622245/little-known-facts-about-illusion-of-kundun-mu-online