Can You Trust Your Ears? (Audio Illusions)

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  • Published on May 29, 2014
  • Should you believe your ears and the things they hear?
    Can Music Save Your Life Video: bit.ly/1hC62NR
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    Written and created by Mitchell Moffit (twitter @mitchellmoffit) and Gregory Brown (twitter @whalewatchmeplz).
    Further Reading---
    Diana Deutsch Illusions and Explanations:
    deutsch.ucsd.edu/psychology/pages.php?i=201
    In depth Shepard Illusion explanation:
    vimeo.com/34749754
    McGurk Effect Explained:
    usclip.net/video/G-lN8vWm3m0/video.html
    Forever Rising Tunes:
    usclip.net/video/ugriWSmRxcM/video.html
    usclip.net/video/BzNzgsAE4F0/video.html
    Shepard Tone Audio Credits:
    soundcloud.com/shepard-tone
  • Science & TechnologyScience & Technology

Comments • 16 483

  • Scarlet Masoli
    Scarlet Masoli Day ago

    look at his mouth first one cant see the teeth but other can

  • Andreea
    Andreea 2 days ago

    2:10 2:22

  • NicholasIsLookingThroughAGlassOnion 64

    I didn’t even hear Far!

  • BeastlyRamZilla
    BeastlyRamZilla 3 days ago

    For the bar/far, if it's both bar, how come the "far" part has him putting his teeth over his lip, making the F sound?

  • Misaki Mei
    Misaki Mei 4 days ago

    the two first ones didn't trick me, but the last one of the ball bouncing up the stairs got me a little confused

  • PseudoJellie .
    PseudoJellie . 4 days ago

    Im getting creeped out by this

  • Proud internet citizen
    Proud internet citizen 5 days ago +1

    When I went back to 3:10 it got low again but some times it didn’t

  • Scopo Steve
    Scopo Steve 6 days ago

    omg i heard bar from both

  • Crazy Gamer125
    Crazy Gamer125 6 days ago +1

    2:10

  • Mapleshade
    Mapleshade 6 days ago

    I heard Mar

  • epicjammer803355
    epicjammer803355 8 days ago

    I heard var

  • Ethan Tang
    Ethan Tang 9 days ago

    #1 Low to high
    #2 Low to high
    #3 Low to high
    #4 High to low

  • Graham Best
    Graham Best 9 days ago

    I heard no far, I just heard bar.

  • devyn coleman
    devyn coleman 10 days ago

    2:11

  • WHYFIGHTGAMER
    WHYFIGHTGAMER 11 days ago

    2:11

  • Premium Music official

    এটা ডোপলার ক্রিয়া।

  • namjoons rejected handshake

    I saw it flash once with and without the soud

  • Oliver NP
    Oliver NP 12 days ago

    I heard all the tones ascending

  • Bella-Chanel Coory
    Bella-Chanel Coory 12 days ago +1

    The circle does flash twice, take off headphones or turn down the volume and listen to it

  • Anay Sharma
    Anay Sharma 12 days ago

    0:48 on the right his teeth are going over his lips while on the left his teeth are not going over his lips

  • Mary Rose Rivera
    Mary Rose Rivera 13 days ago

    Low to High
    High to Low
    Low to High
    High to Low

  • Mike Murdoch
    Mike Murdoch 13 days ago

    its actually 2:10 and 2:28

  • Cattelya SAZ
    Cattelya SAZ 13 days ago

    2:10 strange to me when you think that the tone won't go up, it actually goes up, but when you think that the tone will definitely go up, turns out it doesn't

  • Ryan McNeill
    Ryan McNeill 13 days ago

    lol the ilisions are actualy different sounds and vidieos like the bar and far one you can see in the bar audio his front teath are behind his lips and in far they are infront of his lips

  • mason guelll
    mason guelll 13 days ago

    2:22

  • mason guelll
    mason guelll 13 days ago +1

    2:10

  • CryptRBX
    CryptRBX 14 days ago

    2:10 Replay the same clip over and over and it will sound like he says :OOOO

  • JavozREKZ / REKZboss
    JavozREKZ / REKZboss 15 days ago

    I heard all the tones ascending

  • Лукас Рубик
    Лукас Рубик 15 days ago

    i heard the same descending

  • The Shadow Games
    The Shadow Games 16 days ago +1

    At 0:42 you can see that his mouth is making a different sound. The left one is making a "b" sound but the right one is making an "f" sound. So, they arent the same audio.

  • Sheeba Khan
    Sheeba Khan 16 days ago

    My name is me,
    Ur name is you.
    Who is mad??
    (Suppose)

  • Viggo Macintosh
    Viggo Macintosh 16 days ago +1

    *I am confusion.*
    None of them worked...

  • 一麟
    一麟 16 days ago

    #1-#4 all tones to me were descending 😂

  • Ari Trette
    Ari Trette 17 days ago

    The bar and far are different videos. The far you can see his teeth go infront of his lips

  • Korrupt
    Korrupt 17 days ago

    so the red ball one going up doesnt work for me

  • k k
    k k 17 days ago

    Well then i guess i have perfect ears :v

  • k k
    k k 17 days ago

    I hear bar either way

  • Rality
    Rality 18 days ago

    2:10

  • Hana Houli
    Hana Houli 18 days ago

    I heard acsending, then all descending

  • Ashley Canby
    Ashley Canby 18 days ago

    2:10

  • Lights, Camera, Random!
    Lights, Camera, Random! 19 days ago +1

    The ascending/descending notes all sounds the same?

  • Salman Khan
    Salman Khan 19 days ago +1

    I muted the video yet i saw the circle twice😂😂

  • Orzova
    Orzova 21 day ago

    I heard them both in both video

  • Archangel of Darkness

    The bar and far one is so wrong. I tested it. It's impossible to say bar with your teeth touching your lips and impossible to say far without your teeth touching your lips. DON'T BELIEVE EVERYTHING SOMEONE SAYS

  • Aromma Singh
    Aromma Singh 23 days ago

    Saw it flash once!

  • Xxpotatogoddes101xX
    Xxpotatogoddes101xX 23 days ago

    First one I look second one he was touching teeth with lips

  • kid that needs a life
    kid that needs a life 24 days ago

    the videos werent the same you can see greg with his 2 front teeth going over his lip but in the other one its just him saying bar no lip biting

  • Day Dragon
    Day Dragon 26 days ago

    Height to low and low to hight

  • ponie night
    ponie night 27 days ago +1

    With the first one I heard bar bar bar and the second I heard bar bar bar aswell

  • Kai Noghabai
    Kai Noghabai 27 days ago +1

    I heard bar in the first one too

  • Egg
    Egg 29 days ago

    In the shepard tone illusion it didint work on me :/

  • Llama Boi
    Llama Boi 29 days ago

    Greg is lying in the far you can see him makeing a f and a r in the 2 videos there are.lying

  • Lindsey Lopez
    Lindsey Lopez Month ago +1

    With the tone I could switch with what I heard

  • RetroXJ9
    RetroXJ9 Month ago +1

    The circle literally flashes twice, pause the video.

  • dontu 730
    dontu 730 Month ago

    None of these work on me 1😂😂

  • Fabbe_r
    Fabbe_r Month ago

    2:10

  • Snoopyseal Studious
    Snoopyseal Studious Month ago +1

    There’s a five nights Freddy pizza fan made clip and if you thick of taffy it sounds like taffy

  • DarkSlayerJay
    DarkSlayerJay Month ago +2

    this is not true i muted my headphones and the circle thing flashed twice :/

  • Manmeet Kaur
    Manmeet Kaur Month ago

    1) low to high
    2) low to high
    3) high to low
    4) high to low
    I’m from Canada and I’m indian fyi

  • adrian Jo
    adrian Jo Month ago

    2:10

  • Menno smeets
    Menno smeets Month ago

    2:10 doesn't work of you replay it multiple times

  • SNA Hero
    SNA Hero Month ago

    Nice

  • anime is awesome
    anime is awesome Month ago

    First one worked for me, but the circle one??
    Not working?

  • Ian Layman
    Ian Layman Month ago

    But I always heard bar

  • JACKIE Lopez
    JACKIE Lopez Month ago +1

    #1 was high to low
    #2 low to high
    #3 high to low
    #4 Low to hig

  • Noice
    Noice Month ago

    I saw 1 flash

  • Zachary Marrero
    Zachary Marrero Month ago

    Hi liw

  • Jademonas S2
    Jademonas S2 Month ago +1

    It goes
    Low high
    high low
    low high
    low high

  • Dark Warrior
    Dark Warrior Month ago

    2:52 does that mean my brain is strong? Because I hear the drop

  • Dark Warrior
    Dark Warrior Month ago

    It doesn't soun like it's descending ascending

  • Papitochi Too
    Papitochi Too Month ago

    2:12

  • FAB Creative
    FAB Creative Month ago

    Well looking at his lips they changed the audio

  • Gaming Tre
    Gaming Tre Month ago

    2:10

  • The Gaming Greats
    The Gaming Greats Month ago

    On the right audio clip(no 2) on the first illusion,he is blatantly forming his top row of teeth and flicking them through his bottom lip,the mouth position for an f

  • Arynn Jackson
    Arynn Jackson Month ago

    13

  • Arynn Jackson
    Arynn Jackson Month ago

    I pick one and I picked sleep

  • Arynn Jackson
    Arynn Jackson Month ago

    1

  • Arynn Jackson
    Arynn Jackson Month ago

    Blah blah blah blah for forfor for

  • CrossPod
    CrossPod Month ago

    Omg for some reason I stopped getting the Shepard tone illusion effect :( I cant hear it rise anymore

  • Kyrie Irving
    Kyrie Irving Month ago

    Mcgurk effect absolutely fake😂

  • DebzBar
    DebzBar Month ago

    2:10 2:22

  • niin native
    niin native Month ago

    The mcgurk effect he was biting his bottom lip

  • Mehul Motani
    Mehul Motani Month ago

    High & low🤑🤑🤑🤑🤑🤑🤑🤑🤑🤑🤑🤑19000000000000000000000000000000000

  • Jacob Koong
    Jacob Koong Month ago +1

    2:10

  • Hecate
    Hecate Month ago

    I got this new phone for my bday and niw every time I listen to music for some reason it sounds like its ecoing abd sometimes it sounds normal so I think my ears are fooling me

  • Silly Goose
    Silly Goose Month ago

    I NEVER TRUSTED MY EARS *cuts ears*

  • Robloox
    Robloox Month ago

    I can't trust your narrator he is lying or... is it my ears?

  • Todd Hick
    Todd Hick Month ago

    there all low high

  • pizza gaming
    pizza gaming Month ago

    In the sheperd ilusuin thing i dindnt hear That it gous up

  • Jack Plays2010
    Jack Plays2010 Month ago

    I only heard low high

  • The Chiggest Bungus

    Lol that circle flash one I thought the audio was just meaning one flash

  • Hauke-Kappa •_
    Hauke-Kappa •_ Month ago +1

    I hear larry

  • Crystal Escobedo
    Crystal Escobedo Month ago

    This is so cool! I'm taking a psychology class and we covered the Mcgurk affect so I came and looked it up lol

  • Lazer Sketches
    Lazer Sketches Month ago

    All were higher to lower

  • Mikersoft Vindows
    Mikersoft Vindows Month ago

    Low to high

  • Gotcha Hahaha
    Gotcha Hahaha Month ago

    I'm dead da da da da da da da da XD

  • Claudio Caiazza
    Claudio Caiazza Month ago

    2:10 whaaaatt

  • Rocco Barletta
    Rocco Barletta 2 months ago

    I still saw the circle flash twice in the second part without sound around 1:11