RodC

How cool is that? I just found out I can hear ultrasonic frequencies after 22 years.

My family bought this anti-dog-barking device to deter the neighbors' dogs from barking all night and day. The device emits a range of different ultrasonic frequencies at the push of a remote button, and I can clearly hear them all. No one else in my family could hear anything at any of the different ultrasonic ranges. For me, it sounded like a series of really obnoxious high-pitched squealing sounds.

Anyone else? Or am I just a freak of nature?

CDogbert

Pics or it didn't happen.




That's right, you heard me.

RodC

Yeah it looked something like this...

Sciond

part canine?

RodC

I think so.

ChelsDS

Well then your avatar is a good choice

evosky

whoaaa... that's pretty wicked. so like ... can you understand what animals say to each other???


... i kid.

tC4me

I can hear those too. Very annoying. My friend had one that was motion sensored to keep cats away. I hated going over there to pick her up, gave me headaches.

java09

OMG you are:

RodC

Thank god I'm not the only one.

burstaneurysm

Yea, I can hear them too.
I was an audio/acoustics major in college. The general human range of hearing is 20Hz-20kHz. Last time I checked, I could hear a 28kHz sine wave and even higher if it was a sawtooth.

It can be unbelievably annoying.

RodC

I wonder why we can hear higher frequencies than "normal" people. For me, it's hard to comprehend that someone else cannot hear these noises because it's crystal clear in my ears.

java09

jsut the same as why i can read the very bottom line on the eye test... not the last line of letters but the copy right made in line..

better sense in one area worse in another..

i cant smell worth for ____, which afftects my taste sometimes because a lot taste the same to me! hahha

or you have supre human powers and are like hancock!

RodC

Yeah, my sense of smell and taste is pretty out of wack, but apparently I have dog-like hearing. Interesting.

java09

yeah i guess it only makes sense..

ChelsDS

Do you have dog like tendencies? hehe

Aroddalobster

iTrader: (1)

some convenience stores have used those sounds to brush away teenagers who were loitering in front of their stores because usually only teenagers can hear it. then as humans get older slowly stop working, we stop hearing these sounds at around the early-mid 20s. i think.