Hearing loss
 

wrote in message
...

but that is because I am getting old.Sometimes I hear a
swishing noise in my ears


Its ur ****ing brains sloshin around your skull ya ancient old ******* !


LOL Just joshin with ya!

Hearing loss
 

Since many of in this group will use earphones it might be usefull to
limit the damage to our hearing that could be cuased by overly
load audio blasting into our ears.

Since I already have some minor loss in the 8KHz and up, I try to guard

my hearing from further damage. The last thing I need is more loss to
further limit my ability to understand signals lost in the noise.

http://headwize.com/articles/hearing_art.htm

I use a modified version of the clipper shown in diagram 9
at http://headwize.com/projects/cmoy2_prj.htm

For my pruposes I use the following values:
P1=1 K ohm
P2=1K ohm
R1=1K ohm
R2, not present , a direct connection to the diodes.
And I use 2 parallel sets of Si diodes in series to give a max voltage
of +/-1.4V.

This corresponds to a maximum sound level of 98dB with my
anceint Sennheiser HD-424. While safe for short periods,
96dB causes me to simply get tired after an hour or so, so
I can rdeuce the level with P2 to a more comfortable point.

I also have the ability to switch a transformer to allow receivers with

less AF voltage to be used. I choose to use a 70V, as in "constant
voltage", transformer to boast the common 8 Ohms to 500 Ohms. I
used the largest transfomrer I could find to reduce distortion that can

be caused by too little iron in the core.

I wanted the protection to be the last step before the earphones in
case
my amplifeir fires or I feed too strong a signal. The clipper" also
helps when
listening during the summer by clamping the lightning crashes to a more
reasonable level.

Terry

Hearing loss
 

I probably do not understand much about your project. But wouldn't the
simple solution be to just use the AF gain judiciously? To start at a
low setting and increase only to the level needed.


wrote:
Since many of in this group will use earphones it might be usefull to
limit the damage to our hearing that could be cuased by overly
load audio blasting into our ears.

Since I already have some minor loss in the 8KHz and up, I try to guard

my hearing from further damage. The last thing I need is more loss to
further limit my ability to understand signals lost in the noise.

http://headwize.com/articles/hearing_art.htm

I use a modified version of the clipper shown in diagram 9
at http://headwize.com/projects/cmoy2_prj.htm

For my pruposes I use the following values:
P1=1 K ohm
P2=1K ohm
R1=1K ohm
R2, not present , a direct connection to the diodes.
And I use 2 parallel sets of Si diodes in series to give a max voltage
of +/-1.4V.

This corresponds to a maximum sound level of 98dB with my
anceint Sennheiser HD-424. While safe for short periods,
96dB causes me to simply get tired after an hour or so, so
I can rdeuce the level with P2 to a more comfortable point.

I also have the ability to switch a transformer to allow receivers with

less AF voltage to be used. I choose to use a 70V, as in "constant
voltage", transformer to boast the common 8 Ohms to 500 Ohms. I
used the largest transfomrer I could find to reduce distortion that can

be caused by too little iron in the core.

I wanted the protection to be the last step before the earphones in
case
my amplifeir fires or I feed too strong a signal. The clipper" also
helps when
listening during the summer by clamping the lightning crashes to a more
reasonable level.

Terry

Hearing loss
 

John S. wrote:
I probably do not understand much about your project. But wouldn't the
simple solution be to just use the AF gain judiciously? To start at a
low setting and increase only to the level needed.

Yes.
If you can be certain to never mess up.
I am experimenting with several different detectos, filters and audio
amps. Very easy to mess up and get very loud pops, squals and
other unpleasent shocks.

That, plus the fact that when trying to dig out a weak station I
turn the volume up and when someone nerby turns on a light, or
that nasty flood blender also causes very loud pops etc.

By having the limiter the last thing before my earphones I
insure that simple mistakes won't hurt.

Terry

Hearing loss
 

On 24 Aug 2006 07:38:25 -0700, wrote:


John S. wrote:
I probably do not understand much about your project. But wouldn't the
simple solution be to just use the AF gain judiciously? To start at a
low setting and increase only to the level needed.

Yes.
If you can be certain to never mess up.
I am experimenting with several different detectos, filters and audio
amps. Very easy to mess up and get very loud pops, squals and
other unpleasent shocks.

That, plus the fact that when trying to dig out a weak station I
turn the volume up and when someone nerby turns on a light, or
that nasty flood blender also causes very loud pops etc.

By having the limiter the last thing before my earphones I
insure that simple mistakes won't hurt.

Terry
http://www.musiciansfriend.com/produ...sor?sku=182472

Hearing loss
 

I always keep my radios and tv sets turned down lowwww.(I hate earphones
and earbuds,I never use them) I have ear tintinitus, (however it is
spelled?) but that is because I am getting old.Sometimes I hear a
swishing noise in my ears.
cuhulin

Hearing loss
 

What?
Heh?
What did you say? Heh!
wrote:
Since many of in this group will use earphones it might be usefull to
limit the damage to our hearing that could be cuased by overly
load audio blasting into our ears.

Since I already have some minor loss in the 8KHz and up, I try to guard

my hearing from further damage. The last thing I need is more loss to
further limit my ability to understand signals lost in the noise.

http://headwize.com/articles/hearing_art.htm

I use a modified version of the clipper shown in diagram 9
at http://headwize.com/projects/cmoy2_prj.htm

For my pruposes I use the following values:
P1=1 K ohm
P2=1K ohm
R1=1K ohm
R2, not present , a direct connection to the diodes.
And I use 2 parallel sets of Si diodes in series to give a max voltage
of +/-1.4V.

This corresponds to a maximum sound level of 98dB with my
anceint Sennheiser HD-424. While safe for short periods,
96dB causes me to simply get tired after an hour or so, so
I can rdeuce the level with P2 to a more comfortable point.

I also have the ability to switch a transformer to allow receivers with

less AF voltage to be used. I choose to use a 70V, as in "constant
voltage", transformer to boast the common 8 Ohms to 500 Ohms. I
used the largest transfomrer I could find to reduce distortion that can

be caused by too little iron in the core.

I wanted the protection to be the last step before the earphones in
case
my amplifeir fires or I feed too strong a signal. The clipper" also
helps when
listening during the summer by clamping the lightning crashes to a more
reasonable level.

Terry

Hearing loss
 

On Thu, 24 Aug 2006 10:58:22 -0500, wrote:

I always keep my radios and tv sets turned down lowwww.(I hate earphones
and earbuds,I never use them) I have ear tintinitus, (however it is
spelled?) but that is because I am getting old.Sometimes I hear a
swishing noise in my ears.
cuhulin

Tintinitis is when you hallucinate being followed around by a little
white French doggie who drinks heavily.

Hearing loss
 

Isn't that,maybe the beer I drink does it to my ears.My little doggy
only drinks fresh tap water,(and eats Natural Choice dog food
www.nutroproducts.com $20.00 per twenty pound bag and every eleventh
bag is free,and I always save a few spoonfulls of whatever I eat for her
and let her clean the plate) I change the water out several times every
day.And she isn't a stupid French poodle dog.
cuhulin

Hearing loss
 

Hearing loss
 

Couldn't be my brain sloshing around,I dont have a brain.

www.devilfinder.com What causes that swishing noise in my ears?

My Grandpappy used to say if you have an ear ache,let somebody pee in
your ear.
cuhulin

Hearing loss
 

Brenda Ann wrote:
--
Say no to institutionalized interference.
Just say NO to HD/IBOC!

Always good to limit one's exposure to overly loud sounds.. but one must
also remember that there is natural loss of high frequencies as we age.
Teenagers are taking advantage of this fact now with their 17KHz ringtone,
which the average person over 30 cannot hear.
http://graphics10.nytimes.com/images...ng-graphic.gif

In my case I road a motorcycle for 25 years and that didn't help.

Given that I always have several receivers running, and am constantly
testing
new everythings, detectors, filters amplifiers etc, I have managed to
connect
to a receiver that is running way too high an audio level several
times. And
the two worst events are when the people next door use their food
blender,
a noise source from hell, and when an amplifier that had been stable
for years
decided to turn into a loud CPO. 5 Watts of audio is a little loud via
the
headphones.

I also use something similar with my Minimus 7 speakers after blowing a
"woofer", somehow a 4" driver just doesn't feel like a woofer, when I
got a
little distracted and fed 40W of white noise into it. It was only
painfull for a
moment.

Years ago a friend got the bright idea to connect his El Cheapo Tandy
stereo headset to his Marshall guitar amp. He didn't know that the
typical HiFi has a ~200 ohm resistor in series so he fired up the amp,
put the phones on and played a lick. Called me to complain about
how low the volume was. I went over and found the back of the
earphones discolored from the heat of the fried little speakers. He
was very lucky, God does sometimes look out for fools and children.
His amp was rated at something like 400W. And it had 4 pairs of
push pull output tubes.

I can remember what TV horizontal output transformers sounded like,
from maybe 25 years ago. I don't know if they are still as noisy. A
local
swanky clothing store had egg frier ultrasonic intrusoin detector that
used to hurt when I walked in. I dpn't miss 15K and up but I really
miss
the 8 to 10K range.

Terry

Hearing loss
 

SC,it sounds like a few days ago in another thread you said my house
sucks.
Really though,I am not going to be guessing at what causes my
tinnitus.(if in fact that is what it is) Sooner or later I will go to
the G.V. ''Sonny'' Montgomery VA Medical Center on Woodrow Wilson Blvd
and let them check it out.Or I might go to Dr.Harrison's Ear Nose and
Throat Clinic in down town Jackson.That is where I went the day after
Tuesday just before Christmas last year.

Of course if I go to the VA Center,I might as well get some free blue
and green and brown contact lenses too for whenever I get to dressing up
like a woman.
cuhulin

Hearing loss
 

On 24 Aug 2006 16:56:43 -0700, wrote:


Years ago a friend got the bright idea to connect his El Cheapo Tandy
stereo headset to his Marshall guitar amp. He didn't know that the
typical HiFi has a ~200 ohm resistor in series so he fired up the amp,
put the phones on and played a lick. Called me to complain about
how low the volume was. I went over and found the back of the
earphones discolored from the heat of the fried little speakers. He
was very lucky, God does sometimes look out for fools and children.
His amp was rated at something like 400W. And it had 4 pairs of
push pull output tubes.

I'm pretty sure the most powerful Marshall tube amp was 200 Watts.

Hearing loss
 

David wrote:

On 24 Aug 2006 16:56:43 -0700, wrote:

Years ago a friend got the bright idea to connect his El Cheapo Tandy
stereo headset to his Marshall guitar amp. He didn't know that the
typical HiFi has a ~200 ohm resistor in series so he fired up the amp,
put the phones on and played a lick. Called me to complain about
how low the volume was. I went over and found the back of the
earphones discolored from the heat of the fried little speakers. He
was very lucky, God does sometimes look out for fools and children.
His amp was rated at something like 400W. And it had 4 pairs of
push pull output tubes.

I'm pretty sure the most powerful Marshall tube amp was 200 Watts.

And those were the 'stereo' amps, weren't they?

dxAce
Michigan
USA

Hearing loss
 

On 24 Aug 2006 07:38:25 -0700, wrote:


John S. wrote:
I probably do not understand much about your project. But wouldn't the
simple solution be to just use the AF gain judiciously? To start at a
low setting and increase only to the level needed.

Yes.
If you can be certain to never mess up.
I am experimenting with several different detectos, filters and audio
amps. Very easy to mess up and get very loud pops, squals and
other unpleasent shocks.

That, plus the fact that when trying to dig out a weak station I
turn the volume up and when someone nerby turns on a light, or
that nasty flood blender also causes very loud pops etc.

By having the limiter the last thing before my earphones I
insure that simple mistakes won't hurt.

Terry

There's nothing I hear in earphones that I can't hear in a speaker.

bob
k5qwg

Hearing loss
 

On Thu, 24 Aug 2006 20:49:04 -0400, dxAce
wrote:



David wrote:

On 24 Aug 2006 16:56:43 -0700, wrote:

Years ago a friend got the bright idea to connect his El Cheapo Tandy
stereo headset to his Marshall guitar amp. He didn't know that the
typical HiFi has a ~200 ohm resistor in series so he fired up the amp,
put the phones on and played a lick. Called me to complain about
how low the volume was. I went over and found the back of the
earphones discolored from the heat of the fried little speakers. He
was very lucky, God does sometimes look out for fools and children.
His amp was rated at something like 400W. And it had 4 pairs of
push pull output tubes.

I'm pretty sure the most powerful Marshall tube amp was 200 Watts.

And those were the 'stereo' amps, weren't they?

dxAce
Michigan
USA


I was thinking of this one:
http://www.blamepro.com/marmajor.htm

perhaps you are thinking of this one:
http://www.zzounds.com/item--MSHEL34100100

Hearing loss
 

In article , says...





Everyone I know under 65 can hear that ringtone, except for a friend of
mine who worked around jet aircraft for several years..

BDK

Hearing loss
 

In article , says...





I had a TV that did the squeal and it drove me nuts. All I had to do it
fix it was to raise up one end slightly, and it stopped. Later on, it
started again, and I just took the little shim out and it stopped.

Another one stopped if I smacked the top of it.

BDK

Hearing loss
 

My first tv set I bought for $25.00 with some of my mowing yards money
back in the mid 1950's was a second hand RCA black and white metal
cabinet table model tv set.It worked fine for the first few weeks and
then the picture would start blinking off.I would reach over slap the
side of the tv set and it would work ok again for a few minutes.
cuhulin

Hearing loss
 

David wrote:


I was thinking of this one:
http://www.blamepro.com/marmajor.htm

perhaps you are thinking of this one:
http://www.zzounds.com/item--MSHEL34100100

This was in the winter of 73/74. It has just been too darn long.

I think dxace called it when he mentioned stereo.

While I had a Strat at the time, I was more into acousitc guitar.

I still have my home made 6L6 guitar amp. Somehow I traded for
an output transformer from a large electic organ and my Amp was
popular with a couple of bass players. I even added a 1/4 jack
to my GR64 so I could use it as a practice amp. A single 6AQ7
driving an old 12" dynamic speaker. I used my TTY loop to power
the dynamic speaker electromagnet. The fun old days.

Terry

Hearing loss
 

Brenda Ann wrote:
--
Say no to institutionalized interference.


Always good to limit one's exposure to overly loud sounds.. but one must
also remember that there is natural loss of high frequencies as we age.
Teenagers are taking advantage of this fact now with their 17KHz ringtone,
which the average person over 30 cannot hear.
http://graphics10.nytimes.com/images...ng-graphic.gif

Thought you might enjoy this link sent to me by the speech pathologist.

http://www.audioxpress.com/magsdirx/ax/addenda/Bell-Loudness.pdf

Show how linerar addtion of sounds results in non linear perceptions.

Hearing loss
 

On 25 Aug 2006 09:22:12 -0700, wrote:


Brenda Ann wrote:
--
Say no to institutionalized interference.


Always good to limit one's exposure to overly loud sounds.. but one must
also remember that there is natural loss of high frequencies as we age.
Teenagers are taking advantage of this fact now with their 17KHz ringtone,
which the average person over 30 cannot hear.
http://graphics10.nytimes.com/images...ng-graphic.gif

Thought you might enjoy this link sent to me by the speech pathologist.

http://www.audioxpress.com/magsdirx/ax/addenda/Bell-Loudness.pdf

Show how linerar addtion of sounds results in non linear perceptions.

You're adding logarithms. no?

http://www.rane.com/par-a.html

Hearing loss
 

I own a Strativarius (spelling) Violin,but it is one of those fake ones.
cuhulin

Hearing loss
 

In article , says...





Well, a bunch of the 19-25 year olds at work had it, until they found
out that all of their parents, and myself at 50 could hear it ok too,
but I can still hear past 20K on the right side anyway..

So now it's gone and the dopey music and sound effect ones are back.

BDK

Hearing loss
 

David wrote:


On Thu, 24 Aug 2006 10:58:22 -0500, wrote:

I always keep my radios and tv sets turned down lowwww.(I hate earphones
and earbuds,I never use them) I have ear tintinitus,

Tintinitis is when you hallucinate being followed around by a little
white French doggie who drinks heavily.


http://www.museodelnino.es/sala4/mundocomic/tintin.jpg






mike

Hearing loss
 

Hatari! movie has just now started on Radio tb. (tb,Dennis the
Menance,tb) That was John Wayne's favorite movie he was in and it is one
of my favorite movies too.
Dat Eeeeeeese! I will be in the area for a while.There is no trick
photography in the movie either and very few stunt actors.
cuhulin

Hearing loss
 

David wrote:

You're adding logarithms. no?

http://www.rane.com/par-a.html

Not really. It shows that intensity effect percieved pitch and that
when
adding equal non reinforcing tones the results depart from what would
be expected.

What, to me at least, makes this even more interesting is the date the
research was published, Jan 1935.

In 1974 at college I took a course on the physics of music and musical
instruments. The course ignored the whole louder sounds sharp, softer
sounds flat issue.

Terry

Hearing loss
 

I didn't go to the food store yesterday for food. (and beer,if I want
beer that bad,all I have to do is step over to the Exxon convenience
store/gas station about one block from me.I haven't had a beer in about
a week) I will go to the food store tomorrow though (and the discount
tobacco store) because I have just enough cigarette tobacoo to last me
about twenty four hours and the same with my mostly empty jar of
Folger's instant coffee.I can do without my beer,but I can't do without
my coffee.I tried that once before.

My hearing cleared up (mostly cleared up) a few days ago.
cuhulin

Hearing loss
 

Hearing loss
 

My electric fan running on the end table (it's warm enough in my house
to have my airconditioner turned on) by doggys end of her couch (looking
at the front of her couch,the middle and left end is her end) and
Katrina: The Long Road Back on NBC Radio tv.
cuhulin

Hearing loss
 

Hearing loss
 

You didn't watch national tv news or the talking heads on tv yesterday
and today? Mississippi Gulf Coast area people started rebuilding the day
after Katrina and are still rebuilding right now,everyday.We dont sit
around and cry like a bunch of crybabies and wait on fed govt handouts.
cuhulin

Hearing loss
 

In fairness, waters from Katrina receded from MS whereas it hung around in
LA for a couple weeks. That, and the fact LA was generally hit harder than
MS makes quite a bit of difference in damage don't ya think?


wrote in message
...
You didn't watch national tv news or the talking heads on tv yesterday
and today? Mississippi Gulf Coast area people started rebuilding the day
after Katrina and are still rebuilding right now,everyday.We dont sit
around and cry like a bunch of crybabies and wait on fed govt handouts.
cuhulin

Hearing loss
 

The main force of Katrina was East of New Orleans and it hit the
Mississippi Gulf Coast,wipeing Waveland and a couple of other
Mississippi cities completely off the map.As bad as Hurricane Cammile
was (www.devilfinder.com Hurricane Camille) in 1969 was,Camille didn't
blow three trees down across the street I live on and blow ten shingles
off of the top of my house,Katrina did and I live about one hundred and
forty miles North of the Mississippi Gulf Coast.

Katrina had the seventy foot tall pecan tree in my front yard dancing
around at the base of the tree,at ground level,like a drunken wild
Indian,I saw it myself out my window.Katrina caused that tree to lean
toward the front of my house.A few months ago,I had that pecan tree and
another pecan tree just like in my back yard near my house cut down and
hauled off.Yesterday afternoon,the guy across the street from me was
sitting in his front yard and looking up at that big tall tree in his
front yard near the corner of his house,like he was looking at a ufo up
there.I wonder what he was thinking on this anniversary of Hurricane
Katrina? www.clarionledger.com Katrina Book.Or do a
www.devilfinder.com for The Katrina Book.You ain't seen nuttin yet!
cuhulin

Hearing loss
 

geeman wrote:
In fairness, waters from Katrina receded from MS whereas it hung around in
LA for a couple weeks.

It "hung around" in "LA" (New Orleans) because it is 12-15 feet BELOW
sea level and they had to PUMP it out.

Hearing loss
 

All of New Orleans did not get flooded.
The eye of Katrina was East of Louisiana and hit the Mississippi Gulf
Coast.However,your soybean oil way of thinking might vary.I always tell
the TRUTH. www.devilfinder.com RAO Bulliten Mississippi Deep Sea
Fishing Rodeo

I like it when I misspell something at devilfinder.com,What the HELL!

I get James F. Tichaceks's (Retired U.S.Navy) RAO Bulliten email news
letters over yonder at one of my other webtv username (not at my Alice
webtv addy) thingys,been getting them for over six years.
Seeeeee,,,,,,, y'all need to learn how to live and enjoy Life.Dont go
around with that sour puss on y'alls faces all the time.
cuhulin