PDA

View Full Version : 20,000hz Sound

wildgoosespeeder
12-08-2007, 10:15 PM
Most humans are born with the ability to hear frequencies from about 20 Hz (low) up to 20,000 Hz (high) but that range shrinks as we get older.

Linked is a 20,000hz sound file (http://download.npr.org/anon.npr-mp3/atc/atc_teenbuzz.mp3). Make sure your speakers are on and your sound is unmuted. When you play this file, listen carefully for a high-pitched sound. If you can't hear it, you have some hearing loss!
Kua
12-08-2007, 10:23 PM
Yup, I can hear it. Strange, because when I ran another kind of test, where I started at 15 kHz, and went higher and higher, I couldn't hear higher than 18,5 kHz. o.o
Everlast
12-08-2007, 10:32 PM
Gah I will have to try it later, because right now, there are people talking in my house. :D

EDIT: Closed the door and now I can hear it.
Drow Elf
12-08-2007, 10:36 PM
Even my mom can hear it. I think I managed to scare the daylights out of my cat, who now is trying to stop me from typing.
Samail
12-08-2007, 10:49 PM
A cool thing of mine is that I can hear electronics even when I'm not in the room.
Example: I know that my class is watching a movie before I get there because I can hear the TV. (All it's got is a blue screen on.)

Though many people can do that.
wildgoosespeeder
12-08-2007, 11:00 PM
Some elderly people can't hear 20,000hz anymore...
blue_moon
12-08-2007, 11:03 PM
Yeah... It's so easy to here. Bring on the 21,00hz!
Aus10816
12-08-2007, 11:04 PM
Some elderly people can't hear 20,000hz anymore...

Or anything else...
Drow Elf
12-08-2007, 11:05 PM
@ Samail: Me too. Except I can hear when my mom is watching TV at 12 midnight from my room when all the doors are closed, even though the sound is off.
wildgoosespeeder
12-08-2007, 11:05 PM
A cool thing of mine is that I can hear electronics even when I'm not in the room.
Example: I know that my class is watching a movie before I get there because I can hear the TV. (All it's got is a blue screen on.)

Though many people can do that.


I can hear what you described too...:shocked:
Drow Elf
12-08-2007, 11:07 PM
I think since most of us are under 50, we should all be able to hear it
Leon
12-08-2007, 11:10 PM
*spasm* Gah! My ears!
Loofiloo
12-08-2007, 11:13 PM
In 8th grade, my science teacher turned the sound up to something like 60,000 Hz. It hurt like hell, but he couldn't hear a thing. I'm thinking he might have used some faulty software to do it, because pretty much the whole class heard it. That makes me doubt that it was really that high.

Supposedly that would mean we can hear as well as dolphins, I think. Or maybe it was cats.
Drow Elf
12-08-2007, 11:25 PM
Cats probably. Cats actually have much better hearing than dogs.
Skix
12-09-2007, 12:59 AM
AH!!!!! THE PAIN!!!! THE PAIN!!!! MAKE IT STOOOOPPP!!!!!!!

http://ultrasonic-ringtones.com
Here's a bunch of them...
Samail
12-09-2007, 01:42 AM
In 8th grade, my science teacher turned the sound up to something like 60,000 Hz. It hurt like hell, but he couldn't hear a thing.

Heh. The more Hz, the more it hurtz.
wildgoosespeeder
12-09-2007, 04:33 AM
Heh. The more Hz, the more it hurtz.

HAHA! Nice pun! :D
wildgoosespeeder
12-09-2007, 04:36 AM
AH!!!!! THE PAIN!!!! THE PAIN!!!! MAKE IT STOOOOPPP!!!!!!!

http://ultrasonic-ringtones.com
Here's a bunch of them...

The highest I can hear is 17.7kHz very faintly.
Aus10816
12-09-2007, 04:40 AM
I can EASILY hear up to the 21.1kHz...Sadly I can not hear the 22.4kHz.
biggman15
12-09-2007, 06:20 AM
I can EASILY hear up to the 21.1kHz...Sadly I can not hear the 22.4kHz.
That files empty... You cant hear it for a very good reason...

Down where it says Hearing Test Results... Click 22.4... and see what it says...

(http://download.npr.org/anon.npr-mp3/atc/atc_teenbuzz.mp3). Make sure your speakers are on and your sound is unmuted. When you play this file, listen carefully for a high-pitched sound. If you can't hear it, you have some hearing loss!
I don't think this file is accurate... I've taken these tests before... and can't hear over roughly 18Khz... and I can hear that plain as day...
wildgoosespeeder
12-09-2007, 07:32 PM
I can EASILY hear up to the 21.1kHz...Sadly I can not hear the 22.4kHz.

That files empty... You cant hear it for a very good reason...

Down where it says Hearing Test Results... Click 22.4... and see what it says...

I think that "sound" is there to catch people that will lie about their hearing. If you open that file in an audio analyzer, like WavePad (http://www.nch.com.au/wavepad/index.html), there will be a flat line.
Aus10816
12-09-2007, 08:13 PM
OHHHHHH... Thats Clever. :)
Nonnag
12-10-2007, 02:51 PM
I can walk into my house and know people are home from the TV and even computer (sometimes). And that sound at my computers lowest volume was easy to here.
Nonnag
12-10-2007, 02:53 PM
Hear* stinkin thing wouldnt let me fix it.