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'[OT] Tinnitus sound cancellation'
2000\04\14@024342 by wft

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Has anyone tried matching the tinnitus sounds with a 180 degree phase shifted sound from
headphones ?

Gus

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2000\04\16@180951 by briang

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In-Reply-To: <EraseME38F6BDB8.78C23109spam_OUTspamTakeThisOuTfrii.com>

Gus Calabrese <wftspamspam_OUTfrii.com> wrote:
> Has anyone tried matching the tinnitus sounds with a 180
> degree phase shifted sound from headphones ?

If you knew how the ear works you would see that this cannot work.

The tinnitus is due to nerve impulses similar to those which the ear would produce when it
hears sound and there is no sound you can make that will cause the ear to send anti nerve
impulses to the brain!

Brian Gregory.
@spam@briangKILLspamspamcix.co.uk

2000\04\16@185802 by Philip Martin

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Hi all,

New ish to the group, that is subscribed again after a break of a couple of
years.

Re this thread on Tinnitus. I suffer from it, have done for years now. Once,
many years ago an ENT specialist offered me a sort of cure. The idea was
that I would undergo some audio tests to discover the main frequency of the
sound (ringing) that I was hearing. They would then match this sound, I
presume the opposite, and then get a hearing aid to pump this sound into my
ear, the result being no more ringing in the ear. The down side of this was
that I would then be effectively deaf in that ear whilst wearing the hearing
aid. I plumbed for the ringing!

Philip Martin.

{Original Message removed}

2000\04\17@071636 by paulb

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Philip Martin wrote:

> The down side of this was that I would then be effectively deaf in
> that ear whilst wearing the hearing aid. I plumbed for the ringing!

 If the masking sound is selective, it should not prevent you hearing
other sounds, but the earplug might!
--
 Cheers,
       Paul B.

2000\04\17@164020 by Darren Logan

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Philip,

Out of interest, do you have any tips for at least dampening the effects of
tinnitus ?
My father suffers from it, and no doubt i will one day !

Regards,
Darren

2000\04\17@174720 by Philip Martin

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If I said it was all in the mind, you might thing I was being stupid, but
its one of those things where the more you think about it, the worst it is.
Just like tonight, I have hardly noticed it, yet writing this email I am
acutely aware of it. At the end of the day it's just one of those things to
get used to.

Mine is due to damage from pressure waves, lots of them over the years, but
then the UK government has now made sure it wont happen to me any more. Just
what would you do without politicians!

Philip Martin.

----- Original Message -----
From: Darren Logan <KILLspamDAZLOGANKILLspamspamAOL.COM>
To: <RemoveMEPICLISTTakeThisOuTspamMITVMA.MIT.EDU>
Sent: Monday, April 17, 2000 9:38 PM
Subject: Re: [OT] Tinnitus sound cancellation


> Philip,
>
> Out of interest, do you have any tips for at least dampening the effects
of
> tinnitus ?
> My father suffers from it, and no doubt i will one day !
>
> Regards,
> Darren
>

2000\04\17@192211 by Brandon, Tom

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People note that external sounds help their Tinnitus. This is as you'd
expect. The brain is very good at blocking out background noise. I'd like to
know if people have found headphones (with a non-binaural source) to be
innefective at removing the Tinnitus? Typically the brain uses positioning
to block out background noise. This is known as "The Cocktail Party Effect".
At a Cocktail party it is relatively easy to follow one conversation and
ignore all others. Yet, if you take a mono recording of the party, the
seperate voices become a meaningless mess because the brain can't position
the voices. I wonder if positioning is playing a role in tinitus
cancellation?

Tom.

{Original Message removed}

2000\04\18@103847 by Wagner Lipnharski

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Hi Gus, problem is, tinnitus is not a sound you can cancel. It does not
exist physically. Think of it as a "bad contact" microphone connector
generating noise, it wouldn't matter so much any signal you would
introduce at the microphone to cancel the jack noise, you will only ADD
signals. Other point is that tinnitus is a mix of several, probably more
than 10 different frequencies, and they are not stable, they drift few
Hertz (and amplitude) all the time, and there is no way to "measure
them", even that I would love to actually "see" them at an
oscilloscope...

I have tinnitus in both ears, interesting is that I can definitelly hear
and locate spatially each one in a different position inside the head
(not simetric locations), the left side looks like to be generated
behind the left eye, while the right looks like to be down close to the
jaw.

Gus Calabrese wrote:
>
> Has anyone tried matching the tinnitus sounds with a 180 degree phase shifted sound from
> headphones ?
>
> Gus

2000\04\18@144832 by Philip Martin

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For my own part, I would say that the Tinnitus reduces the ability of the
brain (such as it is) to block out background noise. The situation you
quote, Cocktail Parties, is precisely the type of situation where I find it
extremely difficult to home in on one conversation. The other stange effect
is the delay in the brain decoding messages. Typically I find myself in a
situation where someone will speak to me, and I am aware of this but do not
immediately understand what has been said. So I will respond with 'pardon',
and of course the person will repeat what they said. However, by that time I
know exactly what they are going to say! My ENT specialist said that this
was because the brain was taking a short time to decode the speech through
the background noise generated by the Tinnitus. Bloody inconvenient at times
though.

Philip Martin.

----- Original Message -----
From: Brandon, Tom <spamBeGoneTomspamBeGonespamPSY.UNSW.EDU.AU>
To: <TakeThisOuTPICLISTEraseMEspamspam_OUTMITVMA.MIT.EDU>
Sent: Monday, April 17, 2000 1:26 AM
Subject: Re: [OT] Tinnitus sound cancellation


> People note that external sounds help their Tinnitus. This is as you'd
> expect. The brain is very good at blocking out background noise. I'd like
to
> know if people have found headphones (with a non-binaural source) to be
> innefective at removing the Tinnitus? Typically the brain uses positioning
> to block out background noise. This is known as "The Cocktail Party
Effect".
> At a Cocktail party it is relatively easy to follow one conversation and
> ignore all others. Yet, if you take a mono recording of the party, the
> seperate voices become a meaningless mess because the brain can't position
> the voices. I wonder if positioning is playing a role in tinitus
> cancellation?
>
> Tom.
>
> {Original Message removed}

2000\04\18@150123 by Sean Breheny

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That happens to me all the time, and I don't suffer from Tinnitus!

Sean

At 07:42 PM 4/18/00 +0100, you wrote:
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| Sean Breheny
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2000\04\18@174329 by paulb

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Sean Breheny wrote:

> That happens to me all the time, and I don't suffer from Tinnitus!

 Too many cocktails...
--
 Cheers,
       Paul B.

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