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How's your hearing ?



 
 
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  #1 (permalink)  
Old December 23rd 08, 10:53 PM posted to uk.rec.audio,rec.audio.pro,sci.electronics.design
Eeyore
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Posts: 1,415
Default How's your hearing ?

The strangest thing happened to me yesterday.

I was sitting on my bed and rested my head (the temple) on my hand and I
could hear a buzzing. Now, I'd had a bad headache a few days before but
it didn't sound like the tinnitus associated with it.

So, I removed my head from my hand and the sound stopped. Then the penny
dropped, you can get bone conduction hearing.

Sure enough it was the 11W CFL lamp in my bedside light about 2-3 feet
away. If I put my ear up close to it I could hear exactly the same
sound.

Is that curious or what ?


Graham

  #2 (permalink)  
Old December 23rd 08, 11:26 PM posted to uk.rec.audio,rec.audio.pro,sci.electronics.design
Bob Eld
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Posts: 2
Default How's your hearing ?


"Eeyore" wrote in message
...
The strangest thing happened to me yesterday.

I was sitting on my bed and rested my head (the temple) on my hand and I
could hear a buzzing. Now, I'd had a bad headache a few days before but
it didn't sound like the tinnitus associated with it.

So, I removed my head from my hand and the sound stopped. Then the penny
dropped, you can get bone conduction hearing.

Sure enough it was the 11W CFL lamp in my bedside light about 2-3 feet
away. If I put my ear up close to it I could hear exactly the same
sound.

Is that curious or what ?



Graham


Not particularly, Methinks its just the modulation of the HF switcher at
twice the line frequency, 100Hz in your case. Your probably hearing the
small HF transformer in the base of the CFL sing at that frequency.




  #3 (permalink)  
Old December 24th 08, 01:01 AM posted to uk.rec.audio,rec.audio.pro,sci.electronics.design
Geoff
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Posts: 24
Default How's your hearing ?

Eeyore wrote:
The strangest thing happened to me yesterday.

I was sitting on my bed and rested my head (the temple) on my hand
and I could hear a buzzing. Now, I'd had a bad headache a few days
before but it didn't sound like the tinnitus associated with it.

So, I removed my head from my hand and the sound stopped. Then the
penny dropped, you can get bone conduction hearing.

Sure enough it was the 11W CFL lamp in my bedside light about 2-3 feet
away. If I put my ear up close to it I could hear exactly the same
sound.

Is that curious or what ?


May be the lamp, or not. I get LF tinnitus sometimes when I am stressed or
tired . You could swear there is a humming transformer, resonance, fan, ac,
fridge, or whatever somewhere - but there isn't. Especially at night when
trying to sleep. It can seem very loud (ie not faint background, but very
much 'there'. I even ripped my wall-boards off once, to see if there was a
power cable running past my head (there wasn't).

Other's can't hear it, and you can't measure it. It can seem quite loud.
After years of searching the house and neighbourhood for the source, I
funally realised what it was when I had it way up a mountain , miles from
anywhere, and figured it was (on that occasion) in just one ear !

Sometimes it will strop if I press my jaw near the ear. Once I stuck my
finger in my ear and the hum stopped and it did an orgasmic pulsing thing
instead.

It is known as The Hum, and there are all sorts of conspiracy theories about
it, from weapons research, government mind-control beams, aliens, phantom
planets, the Sun getting ready to implode, electrical feilds, HARRP, gravity
waves, etc, etc, etc. Most adherents to those ideas radically HATE the idea
of something as mundane as (LF) tinnitus.

That could be what you had, and attributed it to the lamp. Or it may have
actually been the lamp (halogen transformer or fibrillating filament).


  #4 (permalink)  
Old December 24th 08, 01:18 AM posted to uk.rec.audio,rec.audio.pro,sci.electronics.design
Joerg
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Posts: 2
Default How's your hearing ?

Eeyore wrote:
The strangest thing happened to me yesterday.

I was sitting on my bed and rested my head (the temple) on my hand and I
could hear a buzzing. Now, I'd had a bad headache a few days before but
it didn't sound like the tinnitus associated with it.

So, I removed my head from my hand and the sound stopped. Then the penny
dropped, you can get bone conduction hearing.

Sure enough it was the 11W CFL lamp in my bedside light about 2-3 feet
away. If I put my ear up close to it I could hear exactly the same
sound.

Is that curious or what ?


MI5 trying to get at your brain via powerline voodoo?

duck and run ...

--
SCNR, Joerg

http://www.analogconsultants.com/

"gmail" domain blocked because of excessive spam.
Use another domain or send PM.
  #5 (permalink)  
Old December 24th 08, 01:22 AM posted to uk.rec.audio,rec.audio.pro,sci.electronics.design
Michael A. Terrell
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Posts: 124
Default How's your hearing ?


Joerg wrote:

Eeyore wrote:
The strangest thing happened to me yesterday.

I was sitting on my bed and rested my head (the temple) on my hand and I
could hear a buzzing. Now, I'd had a bad headache a few days before but
it didn't sound like the tinnitus associated with it.

So, I removed my head from my hand and the sound stopped. Then the penny
dropped, you can get bone conduction hearing.

Sure enough it was the 11W CFL lamp in my bedside light about 2-3 feet
away. If I put my ear up close to it I could hear exactly the same
sound.

Is that curious or what ?


MI5 trying to get at your brain via powerline voodoo?



Why? There's nothing to get at.


--
http://improve-usenet.org/index.html

aioe.org, Goggle Groups, and Web TV users must request to be white
listed, or I will not see your messages.

If you have broadband, your ISP may have a NNTP news server included in
your account: http://www.usenettools.net/ISP.htm


There are two kinds of people on this earth:
The crazy, and the insane.
The first sign of insanity is denying that you're crazy.
  #6 (permalink)  
Old December 24th 08, 02:11 AM posted to uk.rec.audio,rec.audio.pro,sci.electronics.design
[email protected]
external usenet poster
 
Posts: 1
Default How's your hearing ?

On Dec 23, 9:22 pm, "Michael A. Terrell"
wrote:
MI5 trying to get at your brain via powerline voodoo?


Why? There's nothing to get at.


BA ZING!
  #7 (permalink)  
Old December 24th 08, 07:40 AM posted to uk.rec.audio,rec.audio.pro,sci.electronics.design
Eeyore
external usenet poster
 
Posts: 1,415
Default How's your hearing ?



Joerg wrote:

Eeyore wrote:
The strangest thing happened to me yesterday.

I was sitting on my bed and rested my head (the temple) on my hand and I
could hear a buzzing. Now, I'd had a bad headache a few days before but
it didn't sound like the tinnitus associated with it.

So, I removed my head from my hand and the sound stopped. Then the penny
dropped, you can get bone conduction hearing.

Sure enough it was the 11W CFL lamp in my bedside light about 2-3 feet
away. If I put my ear up close to it I could hear exactly the same
sound.

Is that curious or what ?


MI5 trying to get at your brain via powerline voodoo?

duck and run ...


LMAO !

If I haven't sent you it already via one means or another do please check this
kink, no link. Kink is something else I could elaborate on. Many friends have
indulged in it.
http://www.avolites.org.uk/jokes/queen.htm

Graham


  #9 (permalink)  
Old December 24th 08, 07:44 AM posted to uk.rec.audio,rec.audio.pro,sci.electronics.design
Eeyore
external usenet poster
 
Posts: 1,415
Default How's your hearing ?



geoff wrote:

Eeyore wrote:
The strangest thing happened to me yesterday.

I was sitting on my bed and rested my head (the temple) on my hand
and I could hear a buzzing. Now, I'd had a bad headache a few days
before but it didn't sound like the tinnitus associated with it.

So, I removed my head from my hand and the sound stopped. Then the
penny dropped, you can get bone conduction hearing.

Sure enough it was the 11W CFL lamp in my bedside light about 2-3 feet
away. If I put my ear up close to it I could hear exactly the same
sound.

Is that curious or what ?


May be the lamp, or not. I get LF tinnitus sometimes when I am stressed or
tired . You could swear there is a humming transformer, resonance, fan, ac,
fridge, or whatever somewhere - but there isn't. Especially at night when
trying to sleep. It can seem very loud (ie not faint background, but very
much 'there'. I even ripped my wall-boards off once, to see if there was a
power cable running past my head (there wasn't).

Other's can't hear it, and you can't measure it. It can seem quite loud.
After years of searching the house and neighbourhood for the source, I
funally realised what it was when I had it way up a mountain , miles from
anywhere, and figured it was (on that occasion) in just one ear !

Sometimes it will strop if I press my jaw near the ear. Once I stuck my
finger in my ear and the hum stopped and it did an orgasmic pulsing thing
instead.

It is known as The Hum, and there are all sorts of conspiracy theories about
it, from weapons research, government mind-control beams, aliens, phantom
planets, the Sun getting ready to implode, electrical feilds, HARRP, gravity
waves, etc, etc, etc. Most adherents to those ideas radically HATE the idea
of something as mundane as (LF) tinnitus.

That could be what you had, and attributed it to the lamp. Or it may have
actually been the lamp (halogen transformer or fibrillating filament).


It was a CFL. And listening up close revealed an identical sound.

Looks like my hearing threshold must still be around 0 dB (phons actually).

Graham


  #10 (permalink)  
Old December 24th 08, 10:07 AM posted to uk.rec.audio,rec.audio.pro,sci.electronics.design
TonyL
external usenet poster
 
Posts: 212
Default How's your hearing ?

geoff wrote:

It is known as The Hum, and there are all sorts of conspiracy
theories about it, from weapons research, government mind-control
beams, aliens, phantom planets, the Sun getting ready to implode,
electrical feilds, HARRP, gravity waves, etc, etc, etc. Most
adherents to those ideas radically HATE the idea of something as
mundane as (LF) tinnitus.


You obviously have you mind made up about whatever it was that you were
hearing and that everyone who differs must be a raving nutcase. But....

I had The Hum for years when I lived near Wolverhampton. An LF pulsing sound
that sounded like a large truck parked with its engine running. It started
soon after a large gas main was installed nearby and I could "hear" it in
and close to our house, especially at night. It sounded so real that I would
wonder around the house looking for the source. Nobody else could hear it.

I'm not sure it was tinnitus because I only ever heard it in/around the
house. It was so location specific. I recall pulling up onto our drive after
a completely hum-free holiday and turning off the car engine....immediately
I could hear The Hum. Since we have been living in Wales for the last 9
years I have never heard it.

I don't know what it is but I would not dismiss it out of hand as LF
tinnitus.


 




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