Head-Fi.org › Forums › Equipment Forums › Sound Science › Poll: Can you hear sound over 20kHz?
New Posts  All Forums:Forum Nav:

Poll: Can you hear sound over 20kHz? - Page 34

Poll Results: Can you hear sound over 20kHz?

 
  • 25% (91)
    Yes
  • 74% (271)
    No
362 Total Votes  
post #496 of 499

It's been my experience that most true audiophiles are more familiar with how to pull out their credit card than they are familiar with what good sound is.

post #497 of 499
Quote:
Originally Posted by jake120 View Post


well i wouldnt know for sure but i had met a few blind people who could hear/smell things that we could hear and smell but not to any Nth degree like they could.

 

im sure there are adaptations to the human body's senses when parts get disabled etc but i wouldnt have a clue what extent that is.

 

Oh man, don't get me going on my sense of smell.  Sometimes i wish i couldn't smell anything.  It drives my wife crazy.  She is very modest with scented things, but I notice every little detail. No joke, she started using listerine the other day, which is a strong scent I know, but I smelled it from the other end of the apartment (two rooms and a long hallway) and she got frustrated, because she can't so much as open a bottle of anything without me complaining "what's that smell?" haha.  But it really stinks.  I smell smoke anywhere and everywhere when it doesn't bother anyone else.  I sometimes feel like i can't just get a break from smells. :-/  Heaven forbid the neighbors below us decide to cook their foreign wet diaper food ugh... lol

 

 


Quote:
Originally Posted by bigshot View Post

It's been my experience that most true audiophiles are more familiar with how to pull out their credit card than they are familiar with what good sound is.

 

Seriously. It is crazy.  I'm sort of the audiophile my audiophile friends used to look down upon for the things I'd buy like home depot speaker wire for less than $1 a foot.  Yet they always thought my sound system was incredible. ha.  They would buy the fancy speakers and i'd buy the ones i thought reproduced everything insanely well.  My only problem is that i want my audio everywhere to be high quality.  My car, my computer, my tv, my portable.  Man that gets expensive...  But I can't listen to mediocre sound!!!  Unacceptable!!! hahaha


Edited by luisdent - 2/14/13 at 8:34pm
post #498 of 499
If anyones interested, the reason behind why blind people can hear better than most non-blind people has to do with brain plasticity. If the optical cortex receives no information (and there are varying types of blindness, including one where the information gets through but cannot be processed by anything but the amygdala, emotional centre of the brain, so the person cannot see but can still recognize if someone in front of him is happy or sad) then the nerve cells occupying that section of the brain cease to fire. If not used for a purpose, nerve cells will eventually be repurposed by another part of the brain, such as the auditory cortex. The nerve cells on the boundary of that used section of the brain will influence the unused nerve cells to fire with them until all unused nerve cells are being used again. There's a saying in Psychology to describe this, "Nerves that fire together, wire together".

There were experiments done a few decades ago on primates where nerves to a certain part of the body were severed from the brain. That part of the brain map in the primate initially showed up as blank but after a few months would start to light up again alongside nearby brain maps. They say we only use 10% of our brain. In context, this may be true but rest assured that every neuron in a healthy brain either has or will be given a purpose.

On the other hand, we're physically limited to hearing around 19 to 20kHz thanks to the hair follicles in our cochlea. There is no useful evolutionary function for humans to hear over 20kHz and if you can indeed hear supersonic sounds you would be in the very, very tiny minority of genetic mutations. Of course, people who hear over 20kHz do exist but whether its a quarter of all head-fiers I would say flatly no. I'd say the same placebo that makes 'audiophiles' spend ridiculous amounts of capital on audio would be at work but this is cynical speculation at best. Then again, studies are rarely accurate anyway, especially ones done online with no criteria.
post #499 of 499
Quote:
Originally Posted by bigshot View Post

It's been my experience that most true audiophiles are more familiar with how to pull out their credit card than they are familiar with what good sound is.


Lol so true.

 

Personally i did an accounting sheet and charted out expenses...

well the expense sheet said to me just briefly...

if i forgo junk food for a year and plus another $300 on top i could have an LCD-2...

humm hard choices and sacrifice, oh the torture!

 

 

Quote:
Originally Posted by luisdent View Post

 

Oh man, don't get me going on my sense of smell.  Sometimes i wish i couldn't smell anything.  It drives my wife crazy.  She is very modest with scented things, but I notice every little detail. No joke, she started using listerine the other day, which is a strong scent I know, but I smelled it from the other end of the apartment (two rooms and a long hallway) and she got frustrated, because she can't so much as open a bottle of anything without me complaining "what's that smell?" haha.  But it really stinks.  I smell smoke anywhere and everywhere when it doesn't bother anyone else.  I sometimes feel like i can't just get a break from smells. :-/  Heaven forbid the neighbors below us decide to cook their foreign wet diaper food ugh... lol

 

Yeah, smells etc have weird travel times,

apparently the hair folicles in the nose are so sensitive i think its either 1billionth or 1trillionth of the scent is all it takes to trigger them,

listerine is frustrating though it doesnt like going away anytime soon.

 

Diaper food eh?

Try indian vindaloo oh heck,

on terms of smell, using that got the quickest meeting and a sale at the end after saying would be back in at the end of the day to see how things are going.

New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Sound Science
Head-Fi.org › Forums › Equipment Forums › Sound Science › Poll: Can you hear sound over 20kHz?