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[Thread] Mental Math (mander.xyz)

submitted 2 days ago by [email protected] to c/[email protected]

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[–] [email protected] 77 points 2 days ago* (last edited 2 days ago) (14 children)

Our bodies n brains are so cool. Think about what goes into locating a sound in space.

Edit: there's more to it but at the most basic level your brain calculates the fraction of a second difference between when one ear picks up a sound and when the other does creating a reference point based on that.

[–] [email protected] 31 points 2 days ago (2 children)

That’s boring. Two ears only allow you to put the sound somewhere on a plane (the vertical one that cuts your body in half lengthwise). How do you know the ‘height’ of the sound on that plane? By utilizing the different distortions the sound goes through while being funneled through your auricle.

[–] [email protected] 1 points 2 days ago

Also, moving your ears and your head.

[–] [email protected] 2 points 2 days ago

Also that everyones brain has tuned this perception based on their own ear shape, and if you add prosthetic ridges to someones ear they become very bad at determining the noise source direction in blindfold tests.

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