Hrmph. I took that test and could hear it. Barely. I have taken others where I had to go to the 40 year olds to truely hear (rather than feel) the sound.
Because various studies have determined what "normal" is. Everyone has their best hearing in their mid-teens, and it starts degrading after that. The average is that the human hearing range is 20 Hz - 20,000 Hz. When I was 15 I could hear 23,000. Now I'm lucky to hear 18,000. I'm 35.
Part of the degradation is how you have treated your hearing. I spent way too much time during and just after college using power saws without hearing protection. My hearing test results look like the frequency analysis of a chop saw, inverted. (What a saw makes well, I don't hear so well.) You clearly have not spent too much time at raves or in a wood shop.
Dealing with the noise of machine guns and high explosives - yes. I was a combat engineer in the Army. Last summer, I actually slept through two artillery shells being detonated across the street from my bedroom window. They were set off by the psycho ex-boyfriend of our neighbor, who blew up the front end of her car.
(And yeah, I know how they take the averages for hearing ranges. I was being tongue-in-cheek.)
The military has some pretty strict policies about wearing earplugs during drills involving weapons and explosives, but when you get ambushed, you don't get to tell people to stop shooting while you put in your earplugs.
And don't worry about the taste of shoe leather. A little Worcestershire sauce, and it's not so bad. ;)
When one starts to lose one's hearing, it's the high frequencies that go first. Probably you already knew that, and I'm only saying it to lead into this interesting bit of information: my generation is supposed to be the first to start losing their bass sounds before the higher pitches. Interesting, huh? We're also supposed to have the highest rate of male osteoporosis, which (knowing the way my brothers drink soda) doesn't surprise me in the least.
I'm not surprised by the problem with the loss of hearing in the bass range. But then, I don't listen to music with the base pounding.
I have some hearing loss in the mid-range due to too many ear infections as a baby, actually. And the excessive soda-drinking... yeah... very sad. It's amazing what we do to our bodies.
How lovely! The sound is roughly an octave higher than my tinnitus, and is very disorienting. I can feel it in my head. I had to take my vertigo meds to stave off symptoms. I have a vestibular disorder, so this definitely is a trigger. I think part of my hearing loss had to do with frequent ear infections but most of it, I believe, is due to using the weed trimmer. I did not start having vertigo and hearing loss until after I moved to Florida, and I've never used protection for my ears.
I'm glad you're loving Europe. In my case, I'm just barely getting over a nasty sinus cold, and I finally caved and started seeing a chiropractor for my messed-up aching back, and I'm NOT getting to see Europe. At least I don't have midterms, right?
Yeah, I have a ton of pictures from Barcelona, but I was too busy with midterms to rename the files and upload. So I will probably do a Barcelona/Florence update on Monday or Tuesday when I come back from Florence.
How do they figure it's a "teenage" thing to be able to hear high frequencies?
Perhaps because teenagers tend to destroy their hearing by listening to too loud music, and by the time they're in their twenties, the range of frequency they're able to hear is gretly reduced? (Or because aging makes the bones or whatever in your ear less flexible.) Btw, it sounds like the glitch-sound in those blotched mp3s I downloaded yesterday. :/
I can hear! Though I'm only 22. There's more to it than just that one, there a series of them (http://www.teenbuzz.org/) to... scroll down the page and test it out. =D I can hear all of them very lowly, but until the 16 kHz they aren't really high and annoying sounding (I should be able to hear better than that at my age). =/
It all stared with a device called Buzz Off (http://www.articlesbase.com/communication-articles/mosquito-ringtone-335321.html) in Britian that's had legal action against it because it was designed to drive teenagers away from older people with its high frequency.
The idea of driving away teenagers sounds lovely, but what about the adults who happen to simply have a higher audio range? I admit, I'd be pissed if it were me.
I think I'm going to have to go research the legal cases against it to see what people were saying. Thanks for the info!
no subject
Date: 2009-03-04 05:51 pm (UTC)no subject
Date: 2009-03-04 06:07 pm (UTC)On the upside I guess that means my hearing's not bad. :D
no subject
Date: 2009-03-04 06:16 pm (UTC)no subject
Date: 2009-03-04 08:27 pm (UTC)Part of the degradation is how you have treated your hearing. I spent way too much time during and just after college using power saws without hearing protection. My hearing test results look like the frequency analysis of a chop saw, inverted. (What a saw makes well, I don't hear so well.) You clearly have not spent too much time at raves or in a wood shop.
no subject
Date: 2009-03-04 08:36 pm (UTC)In a wood shop - some.
Dealing with the noise of machine guns and high explosives - yes. I was a combat engineer in the Army. Last summer, I actually slept through two artillery shells being detonated across the street from my bedroom window. They were set off by the psycho ex-boyfriend of our neighbor, who blew up the front end of her car.
(And yeah, I know how they take the averages for hearing ranges. I was being tongue-in-cheek.)
no subject
Date: 2009-03-04 08:37 pm (UTC)no subject
Date: 2009-03-04 08:38 pm (UTC)no subject
Date: 2009-03-04 08:51 pm (UTC)Last I knew, though, the military was generally careful about hearing protection. Deaf soldiers aren't useful.
no subject
Date: 2009-03-04 08:58 pm (UTC)And don't worry about the taste of shoe leather. A little Worcestershire sauce, and it's not so bad. ;)
(Really, don't worry about it. *grins*)
no subject
Date: 2009-03-04 08:58 pm (UTC)no subject
Date: 2009-03-04 08:59 pm (UTC)How'ya doing? :)
no subject
Date: 2009-03-04 09:00 pm (UTC)I have some hearing loss in the mid-range due to too many ear infections as a baby, actually. And the excessive soda-drinking... yeah... very sad. It's amazing what we do to our bodies.
no subject
Date: 2009-03-04 09:01 pm (UTC)But I am LOVING seeing Europe.
no subject
Date: 2009-03-04 10:55 pm (UTC)no subject
Date: 2009-03-05 12:06 am (UTC)no subject
Date: 2009-03-05 12:32 am (UTC)no subject
Date: 2009-03-05 12:33 am (UTC)no subject
Date: 2009-03-05 12:52 am (UTC)no subject
Date: 2009-03-05 03:19 am (UTC)no subject
Date: 2009-03-05 04:21 am (UTC)no subject
Date: 2009-03-05 04:32 am (UTC)Post more pics soon? :D
no subject
Date: 2009-03-05 04:33 am (UTC)I hope your vertigo gets better!
no subject
Date: 2009-03-05 04:34 am (UTC)no subject
Date: 2009-03-05 04:34 am (UTC)no subject
Date: 2009-03-05 07:42 am (UTC)no subject
Date: 2009-03-05 08:35 am (UTC)Perhaps because teenagers tend to destroy their hearing by listening to too loud music, and by the time they're in their twenties, the range of frequency they're able to hear is gretly reduced? (Or because aging makes the bones or whatever in your ear less flexible.) Btw, it sounds like the glitch-sound in those blotched mp3s I downloaded yesterday. :/
no subject
Date: 2009-03-05 02:42 pm (UTC)no subject
Date: 2009-03-18 05:14 am (UTC)It all stared with a device called Buzz Off (http://www.articlesbase.com/communication-articles/mosquito-ringtone-335321.html) in Britian that's had legal action against it because it was designed to drive teenagers away from older people with its high frequency.
no subject
Date: 2009-03-18 12:20 pm (UTC)I think I'm going to have to go research the legal cases against it to see what people were saying. Thanks for the info!