Audio Illusion

Just like there are optical illusions, there is also “audio illusion” or "accoustical illusion". This one is called Shepard Tone. When a number of octave notes are played at the same time, the average human ear will simply hear the one note, closest to the last pitched sound it heard, as opposed to differentiating and splitting that sound into its singular octave parts. The volume of the higher pitched tone slightly decreases and the lower pitched one increases over the scale, which is what makes the effect seem so seamless.

Flixxy editors search the internet daily, to find the very best videos for you: SELECTION: From over 3 million videos uploaded to YouTube daily, we select only a few videos to be added to the site daily. PG RATING: Flixxy videos and comments are all PG rated. They are "Safe For All Ages" and "Safe For Work". Our content is uplifting. SELECTED START AND END POINTS: Many of Flixxy’s videos start late or end early. We skip lengthy introductions and get to the point. CONCISE CAPTION AND DESCRIPTION: We don't use "click-bait." Your time is valuable, so we distill the information down to what you want to know.
FREE DAILY NEWSLETTER: Get the latest videos delivered to your inbox by subscribing to the FREE "Video of the Day" newsletter.