Stumble ThisWhat sound is this man making? Most people will describe it as "da-da" or "la-la" or even "ga-ga". Now play the video, but don't look at him. For most people, he'll now clearly be saying "ba-ba".
McGurk Effect Related Videos
 A man makes friends with a wild raven (Happy B-Day Raven) |  Pac-Man with Real People |  Billy Thorpe & The Aztecs - Most People I Know (Live) |
tags:
Comments 
playlists with this video
The Eyes Have It! by silvercord
• Nature with a big N by bluecliff
who voted for this video
silvercord
- budzos
- bluecliff
- persephone
- dag
- Eklek
- jmzero
- twiddles
- pro
- maudlin
- youdiejoe
- sirex
- Deano
- lisacat
- bigbikeman
- robbersdog49
- timefactor
- Fiver2
- Mysling
- ant
- garsh
- fissionchips
- gorillaman
- supersaiyan93
- blackoreb
- frogger3d
- Kurtz007
- doogle
- Sarzy
- lertad
- messenger
- gwiz665
- ex-jedi
- conan
- arnor
- Krupo
who has this post bookmarked
ex-jedi
- lertad
- maudlin
more posts by jmzero
|
Recently Updated Playlists
Top New Videos by Vote
Subscribe
Top 15 Sifters of All Time
Top 15 Sifters of the Past Week
VideoSift Links
it also works when you close your eyes during the video
http://en.wikipedia.org/wiki/McGurk_Effect
it's actually a dub, you can concentrate on the sound and look at him and see the discrepancy
It's a video of a guy going something like - ga - ga
while the audio is ba, ba
Great sift.
Over a telephone/ radio, especially old phones it was impossible to determine P - T - C and other letters.. due to only being able to transmit a certain range of audio.. which is why words like Alpha, Bravo, Charlie, Delta, Foxtrot were used.
New study's into Dislexia have shown that some children / adults have an audible deficiency which might make it hard for them to determine sound rather than determine words.
I guess it's technically true that your ear detects those 3 things - but it's kind of odd to say it uses all 3, as they're all, in effect, the same thing. Pitch and frequency are measuring the same thing, and detecting frequency implicitly means detecting wavelength (as they're inversely proportional).
And while it's certainly true that missing frequency (or, equivalently, wavelength or pitch) information would cause interpretation problems, that's not what's happening here. What this effect demonstrates is that, in addition to frequency, volume, and other auditory information, visual factors are used in interpreting sound.
What makes this interesting is *precisely* the fact that knowing what is happening doesn't negate the effect....in fact, judging by the comments here, virtually nothing you can do will neutralize the effect. And I agree with jmzero: this is not like saying p t or c on the phone because in those cases, once someone tells you which letter they're saying you can usually "hear" it properly.
You shouldn't have said how it would sound when you don't look at him, you should've just said to try it, otherwise it influences the result.
Btw when I was looking at him I thought he was saying "Anal ha"