THE SMART TRICK OF ILLUSION OF KUNDUN MU ONLINE THAT NOBODY IS DISCUSSING

Shepard Tone - Created by psychologist Roger Shepard at Bell Labs, this illusion contains a set of tones that appear to perpetually increase or drop. The illusion is established by super-positioning pure tones (sine waves) an octave aside.A common phenomenon could be the auditory perception that a blowing automobile horn variations its pitch becaus