WHAT DOES ILLUSION OF KUNDUN MU ONLINE MEAN?

Shepard Tone - Established by psychologist Roger Shepard at Bell Labs, this illusion includes a list of tones that seem to perpetually rise or tumble. The illusion is made by super-positioning pure tones (sine waves) an octave apart.A typical phenomenon is the auditory perception that a blowing automobile horn alterations its pitch because it passe