Anonymous
Unregistered
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Upper Limit of hearing...?
#968124 - 03/02/12 04:28 PM
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I did a hearing test last night and found I could hear just after/as 17kHz was announced.
I'm 37 so I wasn't sure if this is low for my age. I was a bit depressed I couldn't hear
up to at least 18kHz but on Wikipedia it said most adults can't hear above 16kHz, so
perhaps it's not so bad.
I was in a band for 6 years with really silly noise
levels once or twice a week, and often sudden feedback shreaks, etc. Before then I could
just about hear those teenage repeller sirens in my late 20s. That said, my environment is
otherwise unusually quiet.
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johnny h
Joined: 24/07/06
Posts: 2298
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Re: Upper Limit of hearing...?
[Re: ]
#968127 - 03/02/12 04:43 PM
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Quote J.A.S:
I did a hearing test
last night and found I could hear just after/as 17kHz was announced. I'm 37 so I wasn't
sure if this is low for my age. I was a bit depressed I couldn't hear up to at least 18kHz
but on Wikipedia it said most adults can't hear above 16kHz, so perhaps it's not so bad.
I was in a band for 6 years with really silly noise levels once or twice a
week, and often sudden feedback shreaks, etc. Before then I could just about hear those
teenage repeller sirens in my late 20s. That said, my environment is otherwise unusually
quiet.
That's totally
unacceptable levels of hearing loss. I suggest you get new ears immediately.
Do not neglect the all important 18kHz to 19kHz frequency range.
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. . . Delete This
Here be Dragons
Joined: 23/06/08
Posts: 3888
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Re: Upper Limit of hearing...?
[Re: johnny h]
#968129 - 03/02/12 04:48 PM
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Johnny, please use a smilie when you pull someone's leg that hard.....
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Gary_W
Joined: 18/10/06
Posts: 377
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Re: Upper Limit of hearing...?
[Re: ]
#968131 - 03/02/12 04:55 PM
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In my late teens and early 20's I used to fix all kinds of medical equipment for a living
and occasionally used to work on audiology equipment. At that point, according
to the testers, I could go to about 22KHz. I believe that was fairly accurate but who
knows? The sound heard at that level was akin to a bat farting very gently through a
picolo and then the sound being put through a filter comprised of dry leaves and organic
mint. These days in my 40's I'm stuffed if I know where my upper limit is - the
rest of me is gradually falling to bits so I don't imagine my ears are any different  A few days ago I noticed a strange whining sound when I played my guitar amp flat out
without the attenuator. Turns out it was my wife. Is there an
emoticon for a rimshot? If not, why not?
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Exalted Wombat
Joined: 06/02/10
Posts: 4316
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Re: Upper Limit of hearing...?
[Re: Gary_W]
#968136 - 03/02/12 05:11 PM
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I went through the standard Audiology test at a hospital recently, as part of the
investigation of an ear problem. The consultant glanced at the result slip and just said
"That's OK then". When I expressed interest in the details, it transpired that they only
tested as far as 8K.
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Hugh Robjohns
SOS Technical Editor
Joined: 25/07/03
Posts: 18539
Loc: Worcestershire
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Re: Upper Limit of hearing...?
[Re: ]
#968142 - 03/02/12 05:24 PM
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Home testing of one's hearing response is fraught with error sources and can only ever be
used comparatively with previous tests done the same way with the same equipment...
You should never rely on them as being accurate in any way because you can't
guarantee the response accuracy of the headphones or the gain calibration of the replay
system.
However, hearing accuity naturally dalls off with age and it is said
that humans lose roughly 1Hz of their hearing bandwidth for every day of their life! Quite
a sobering thought!
Young people (below 20 or so) can often detect 20kHz or
slightly above at nominal levels (see the Fletcher Munson sensitivity curves which show
the relative insensitivity or 20kHz relative to 1kHz), but as we get older the sensitivity
falls so that initially we need increasingly greater levels before we can hear such high
frequencies... and eventually we might become completely insensitive to them.
Being able to hear 17kHz reliably when in your late 30s / early 40s is about normal, but
everybody's hearing perception and bandwidth is slightly different. I'm sure you'll have
friends of similar age who can't detect 17kHz and others who can still hear 19kHz -- and
you might well find that womens' hearing bandwidth is slightly better than mens' of a
similar age.
Hearing damage caused by prolonged exposure to excessive sound
levels tends to make itself known first by a widening and deepening of the 'disco-dip' --
a common narrow bandwidth reduction in hearing sensitivity around the 4kHz area. This
plays a significant part in reducing the intelligibility of speech and its the area of
most interest to audiologists when they are trying to establish hearing damage and the
requirement for hearing aids. Also, sa has been said, few standard auiology tests extend
beyond about 8-10kHz.
It sounds to me like your hearing is in good shape...
For a man of your age!
Hugh
-------------------- Technical Editor, Sound On Sound
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Anonymous
Unregistered
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Re: Upper Limit of hearing...?
[Re: Hugh Robjohns]
#968144 - 03/02/12 05:35 PM
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Cheers. I've still got my fingers crossed medical developments will enable me to hear like
a new-born baby again (if that's a good thing) by the time it's got really bad. I've
started listening to my MP3 player on the lowest notches for most albums, and I'm quite
used to it now! Once you turn it up it seems the ear turns the perception of it down
anyway.
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hollowsun
Joined: 20/01/05
Posts: 4590
Loc: Cowbridge, South Wales
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Re: Upper Limit of hearing...?
[Re: Hugh Robjohns]
#968149 - 03/02/12 06:02 PM
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Quote Hugh Robjohns:
you might
well find that womens' hearing bandwidth is slightly better than mens' of a similar
age.
Yes - when it bloody suits
them!
-------------------- Website / Music Lab Machines / Blog
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ceridwen
Joined: 02/01/12
Posts: 28
Loc: UK
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Re: Upper Limit of hearing...?
[Re: hollowsun]
#968163 - 03/02/12 08:27 PM
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Whether it suits us or not! Suits my husband fine; not hearing the wail of our
youngest in the middle of the night. I guess now I understand why, old git
that he is!  Still, it explains why he doesn't hear me when I'm stressed
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John Willett
Sound-Link ProAudio
Joined: 07/03/00
Posts: 11984
Loc: Oxfordshire UK
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Re: Upper Limit of hearing...?
[Re: johnny h]
#968228 - 04/02/12 10:09 AM
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Quote johnny h:
Quote J.A.S:
I did a hearing
test last night and found I could hear just after/as 17kHz was announced.
I wish I could hear as high as 17kHz - even
16kHz would be nice.....
-------------------- John - Sound-Link ProAudio
President - Federation Internationale des Chasseurs de Sons
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hollowsun
Joined: 20/01/05
Posts: 4590
Loc: Cowbridge, South Wales
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Re: Upper Limit of hearing...?
[Re: ceridwen]
#968296 - 04/02/12 03:28 PM
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Quote ceridwen:
Whether it suits
us or not!
Suits my husband fine; not hearing the wail of our youngest in the
middle of the night.
I guess now I understand why, old git that he is! 
Still, it explains why he doesn't hear me when I'm stressed
See... that's I mean!
Thank
you for making my point!
-------------------- Website / Music Lab Machines / Blog
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IvanSC
Joined: 08/03/05
Posts: 7762
Loc: UK France & USA depending on t...
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Re: Upper Limit of hearing...?
[Re: ]
#968301 - 04/02/12 03:42 PM
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I currently have 70dBHL in my left ear and 40 in my right.
Started losing it
noticeably when I was about 40.
At the time I visited a hearing clinic in the
USA after running a sweep generator and plotting where stuff started dropping in and
out. I went in equipped with "well I seem to have a dip at 500 and then another about
4k" and the doctor laughed at me. "You have obviously got more accurate and more
sensitive measuring equipment then we have" he quipped.
But then a few years
back I visited specsavers for a new vision test and got them to check my ears out at the
same time, which is when I realised just how bad my hearing had become.
I now
mix twice, once facing th speakers and then again with it all reversed so I can get some
idea of how much treble I am piling on to compensate for everything having disappeared
above 12k.
-------------------- Me? But I`m such a loveable old bugger!
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Anonymous
Unregistered
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Re: Upper Limit of hearing...?
[Re: ]
#968339 - 04/02/12 07:08 PM
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I was worried about the 'intelligibility of speech' aspect of hearing, because I've
noticed recently that I don't understand speech on the telly as well, especially different
accents. I keep slipping into listening more to the pattern of how people speak than what
they're actually saying. I don't know what that's all about. But I think now it's because
the TV is further away than I ever had it, and I've got used to lower volumes than before.
Also, for the last 5 years I've gradually spent much less time talking, and the past year
hardly at all.
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