Amazing AUDIO illusion

[RammusTheArmordillo]

chuck norris can sing this.

[cyberkingism]

00:30

[guitarmt3095]

Ahhhh overtones...

[TiagoRawr]

i know the trick, still it's great everytime.

the same thing was used by nintendo in super mario 64, in the endless stairs ahah

[AlexThatLilNoob]

Thumbs up if you don't get it.

[TheTimm3y]

@AlexThatLilNoob i gues ur youtube account name says it all...

[scotalianrocker]

Sounds like the lower tone starts on a higher note then drops down an octave to match the higher tones progression for the rest of the track. So when you press replay it sounds like it's going up..

[rajah010203]

Wooooooooooooooooooooooow 

[Davizuky]

00:00

[BlueWilder]

What kind of sorcery is this?

[reiziger7]

It does work to me

[pastadam]

WHOAAAAAAAAAAAAAAAAAAAAAAAAAAA­AAAAAA

[eedzic]

wtf it dont works for me too!!!!!!!!!!!

[icetec1337]

Didn't work for me.

[AarontheEpicLBT]

Whoa!

[AnotherWorldChannel]

doesn't apply if you are drunk

[TheJulian12398]

It's just the same sound with different octaves

[C0reInside]

Mindfuck

[iiJkRii1]

lolwut? i just think that the last and first tone were the same.. nothing really special

[Spritemasters524]

oly crap

[heimcrabs]

wtf



[gumpad]

Omg

[XParamoreX1000]

Omfg :L

[XParamoreX1000]

Omfg :L

[EsauGarnelo777]

The very last tone shifts back down an octive so it restarts again from there.

[ironlucio94]

00:00

[Latinlore1]

Wow

[BellatrixXD]

Oh may god thats so crazy....

[QueenOfTheTrolls]

even though i knew nothing was gonna pop up, i was still scared lol

[NanosuitPilotFraser]

Two sounds escalating at the same time, one low pitched, one high pitched. First time, you notice the low pitch, second time you notice the high pitch

[animalnt]

about 8 seconds in it transits with another escalating sound, from a lower point.

[hidanslover32]

I honestly thought somthing was gana pop up  but it was really cool though

[camaradeEK]

no way

[r0dk3vin]

What the biscuits that was cool

[legolover122]

can somone logically explain this?

[RicercarUPSB]

@legolover122 It's called a Shepard tone. The lower octave is slowly fading in, and then the higher octave is slowly fading out. So it creates the effect of never ending accent.

[ThePopcornia]

Woah! WTF happend there?! O.O

[macco66]

Now I need to poo.

[CyCloppsProductions]

that's just creepy.

[Funected]

i was getting more nervous the higher the sound got ...

[killerkerara]

SPOILER

The effect is achieved by having 3 separate tones rising at the same time. One of the tones will drop down an octave, but since the other 2 tones are still rising, it is difficult to notice. By staggering the time at which the 3 tones drop down, it gives the illusion of an infinitely rising tone, when in reality the tone never actually changes by more than a few notes.

[UpFunkDNB]

@killerkerara also, the top octave fades out completely at 8 seconds

[yoblackops7]

O.O

[iamSmexx]

WHAT HAPPENED! OMG

[ProfessorBastard]

shit

[343steele]

i think it is weird that if you start it over before it reaches then end (like half way) the effect is lost....

[SuperUltraMegaBOOM]

Mind=blown

[xXteknomaticXx]

Is it weird if the "creep up" effect was heard the first time by me?

[ps3master72]

i saw this on flipnote

[hiilikepink]

@ps3master72 me too lol. whats your id?

[seleleoulele]

first and last loop are the same ;)

[koko2044]

how the fuck

[FaizAccel555]

HOLY $#!T!!!

[rjdonsky]

HAH after the 17th time watching this i realised it was the sam notes

[Anthr4x292]

It's a shepard tone

[Xfs1011X]

Thumbs up if you checked if it got scream :D

[Viirukka]

xD

[MaryStewart]

kinda works. there's 2 notes in a chord, so i get this trick.

[phoebeisreallycool15]

what the fuck .... o_0

[noisia123]

Guess you gotta be tone deaf for it to work.

[tsphilly98]

It didn't work for me... I heard the same thing

[tuki3220]

At 0:08 the tune "restarts", so when the video finishes, the tune continues from the start of the video, so when looping the sound, the effect is reproduced

[stephenvaldes]

anybody know the name of this phenomenon?

[themcfly]

Shepard tones

@stephenvaldes 

[TheSuperJiggy]

awesome and creepy at the same time.

[catsonfirelike]

vsauce

[wccodelyoko]

WTF?! 

[dbs55denis]

uhmm, i can hear it keep going up and one of teh octaves drops, out of the two, try it with three octaves maby itll work better

[jonokimmie]

wuuuuttt??? i dont get it ....

[Gilli1406]

This is Awesome!! 

[Gilli1406]

Woww Wtf!

[explycitkilla]

Pretty interesting, although it has diminishing effects after about the 4th repeat.

[oodanoo1]

I've left this on repeat for like an hour. Fuck yeah.

[dongwgo]

watch vsauce and you'll know

[edenooch]

waste

[elicik1]

Omg this is awesome

[burrderr]

5 people have watched this video almost 2 million times

[BlueOnRS]

Wtfffff :oo

[dblac74]

Damn, I listen to too much music...this didnt work. Mind-fucked the shit out of my mum though.

[iHateMangoes]

Apparently cuck Norris was bored......

[pyrea17]

That's so cool! I took at least five times re-playing it for my brain to catch on.

[vcnoxyt]

not a musician, not a normal gullible part of the population either. Give me 20 seconds of my life back or pay 10k cash.

[xXOpticButtholeXx]

0:00 to help

[jayson11]

i feel like my head's gon explode

[jonnyquattro]

I don't get it. it's higher notes every time.....

[MiDnYTe25]

multioctave sine notes, simple genius (btw listen at 0:04 it starts dropping out the higher freq's)

[dragossh]

Fucking octaves, how do they work?

[TheSundayDelight]

are you a wizard?

[lowproductions92]

ARGH! YOU'RE BRAINING MY HURT!

[jd3092003]

whack

[orti1992]

it's not working!!

[baughd2]

Fail



[donnyromo]

It sounds the same every time.

[MrStiggy73]

WOW i was sceptical at first.. then i was like GTFO Of here!!

this is amazing

[brooklynstudio]

octaves

[Yaibeast]

Wtf

[fubar8peace]

sounds the same QQ

[hunterr83]

Demons!!!!!!! Demons, I say!!

[uutube08]

It didn't work for me either.. what a fail

[metallica41070]

whats suppose to happen lol

[noonerofl]

nothing here

[littleman330]

HACKS HACKS!!!

[ds4041]

after 2nd time

ssssssssssssssssssssssssssssss­sssssss BOOM

[xXxWhispererxXx]

Am i a musician and dont know it? :/

[Shamukh]

this is one of my favorite songs. listen to it at night when i go to sleep.

[MrBondad]

You are a wizard!

[fedora1985]

mind = fucked.

[sundayisshowers]

Weird

[thereisaworm2011]

Witchcraft.

[symcyti]

Fake...

[normalpsychology]

@symcyti Dude, listen to me. I want you to understand that I've had a fucking shitty day and your comment literally KILLED some of my anger/depression. You fucking murdered it with humor. So, I don't know what else I can do for you, I don't have a lot of money, but I just had to tell you that you win at humor. Thank you for your simple, yet powerfully hilarious comment on this video. I wish you the best in this world, seriously.

[Hotredsoup]

NNOOO IT CANT BE



[masonpatrickwebb]

Has 3 octaves playing at once, the reason we pick up on the others is because we are listening for them, we expect a low tone at the start of the movie and we get it, at the end we are left at the end but the note before the next, say It starts at C so the movie ends at B... Thus we pick up the next corrisponding note that our ears are expecting, ignoring (more or less) the same note played at higher/lower octaves... I got 3 octaves.

[BismuthWasTaken]

It's played across more than one octave (I think three) and they slightly increase/decrease volumes so it sounds like it's always going up but eventually the highest octave fades away and a lower one replaces it. Koji Kondo did it in Super Mario 64's Endless Stairs.

[darkfalco1094]

What does it mean if i hear it creeping up the very first time i hear it?

[Dalemoooooon]

@darkfalco1094 its supposed to, but if you replay the video it sounds like it keeps going even higher than at the end of the first time.

[ferrous719]

ok, so what I think I'm hearing (after several repetitions) is the sound is played on several octaves, but each time through I only 'hear' (ie pay attention to) it on the next octave up because my brain likes to screw with me. Is that pretty close?

[fairrater121]

This doesn't work on musicians. :P

[Chassy14]

@fairrater121 hahaha I just tought the same :D.. doesnt work for me either

[fairrater121]

@Chassy14 haha! Did it just sound like it was repeating to you?

[Chassy14]

@fairrater121 yes :D the same sound every time

[vivalavelveeta]

@fairrater121 what a pompous ass.

[fairrater121]

@vivalavelveeta I'm not saying musicians are superior in any way, if anything musicians are missing out on this cool audio illusion. lol

[Barimatone]

@fairrater121

Ha ha, it should be especially effective on someone who is trained to know what to expect. The beauty of psychology--no one is immune. You may want to question labelling yourself a musician if this doesn't work on you, ha ha.

[fairrater121]

@Barimatone Did I say I was one. :P

[LucidicProductions]

@fairrater121 haha yea, right at the end, you can hear a tone drop an octave ;)

[PonyfacioStupidVids2]

@fairrater121 fuck you

[9598dad]

CHromatic scale

[Gizmo994]

woow listend this 5 times

[o0ShadowsfeaR0o]

I can hear it reset. It's not really an illusion, it's an octave raising.

[iLoveYoutuveVideos]

whats the song name??

[boogdan77]

0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00

[seltblade]

how the fuck!?

[bloximonkey]

NOOOOOOOOOOOOOOOOOOOOOOOOOOOOO­O

[MrJetstreamj]

Once you can train your mind to hear the difference between the tones, the illusion no longer works. But still, that is crazy!

[L3G3nD0001]

@MrJetstreamj Yeah, for some reason, I keep hearing the same tune over and over. This audio illusion only works when you are not paying attention closely, but only opened mind would experience this effect.

[kismo94]

( . Y . ) THUMBS UP FOR BOOBS

[TishBracken]

Definitely something to listen too when you've had a smoke ;~))

[XxSpyyx]

It's called octaves lol.

[joecooper18]

press 3, then 7, then 3.. theres a difference, but i cant see where it drops back down for it to loop

[HermanAnimation]

Wait what?

[christodec]

keyboard cat on the run

[ThatOneGuyWhoIsMe]

Overtones.

[MapleManiac0o]

it only goes up two octaves then you can hear it repeat. it plays 2 tones at the same time, an octave apart, so after the first time your brain automatically switches to the higher octave.

>type repeat after youtube in the url for infinite repeat.

[Nomonicks]

Aw.. after a while it doesn't work anymore and you can hear the bass and the higher notes hehe :P

[Nitoryuu]

GET OUT OF MY HEAD!!!

[sheepborg]

Go here for loop :

youtube.com/v/ugriWSmRxcM&loop­=1

:D

[TheCtkarsten]

I think whats going on is some form of "your mind wants to hear a progression." You know your brain putting together pieces in a way that seems logical to it but is not in fact logical.

[5BBassist4Christ]

@TheCtkarsten Actually, what's going on, is a system called Octaves. Basically, after so many steps going up in music, you get back to the same note/pitch but an octave higher. Kind of like in counting, you start with a 1 in the ones place, and after 10 you're back to a 1 in the ones place. In music, however, it goes up to twelve (C, C#, D, D#, E, F, F#, G, G#, A, A#, B, and then back to C). This is (probably) starting at the C and then ending at the C so you're ready to hear the C# again.

[ruvensd]

Close Encounters of the Third Kind!!

[Benya0505]

Chuck Norris plays the piano.

[scarf258]

The scary thing is, that even if you know for 100% that it´s only an illusion, and even if you try with all your logic thinking to work against that you can´t work against it, and the tune keeps getting higher and higher in your brain.

[venusha]

nice way to get a lot of views!

[eightdollarwater]

ALIENS

[karthiksreeni]

The thing is there is a tone decrease at 6 seconds and 7 it starts to increase. You will observe this if you play the seconds in random.

[karthiksreeni]

Amazing

[SingularlyDatarific]

Ahhhh, very interesting!

The two ends are actually indistinguishable, it does NOT jump there...

They have an ascending scale using octave separated chords, and they gradually phase out the highest note and phase in the lowest note to create a sort of illusion of ascension. It works like Escher's endless staircase, except far more effective, since we can only see one "step" at a time and not the whole picture. Very intriguing!

[riceplo]

WHAT IS THIS SORCERY?!

[CaptainShmiggles]

What is this I don't even...

[duckwithnukes]

Auto-loop: youtube.com/v/ugriWSmRxcM&loop­=1

[mallyvarGH]

WHAT MANNER OF SORCERY IS THIS

[SoraHarukey]

at first i was like "b.s"

then i'm like HOW THE HELL IS THIS HAPPENING?!?!

[Whateverz77]

WHAT BLACK MAGIC IS THIS?

[Jzzkc]

it works as a continuous loop. there are two pitches playing at once, the lower pitch is less noticeable, but about halfway through the song, the lower pitch gains prevalence, and by the end of the audio clip, meets the same pitch as the high pitch at the beginning of the song.

[retardedcharmander]

I dont get it!!!

[nigtasticity]

Scary as fuck if you listen at 3 in the morning with all lights out out by yourself.....

[nigtasticity]

Scary as fucj

[Varska21]

This is fucking witchcraft, BURN IT

[Msjanedoe124]

Ehhhh just low sound high sound low sound high sound low sound high sound

[77josh77]

@Msjanedoe124 they play at the same time actually

[irwatchvids]

WHAT THE FUCK IS THIS WITCHCRAFT!