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Old 27th December 2002, 07:24 AM   #11
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Default Re: Re: dampening

Quote:
Originally posted by planet10


Just a little nomenclature here.

Dampening is the act of getting something wet. I don't think you really want to pour water on your CD player

Damping the chassis & various other parts of almost any electronics can have a beneficial effect if applied in the right places.

dave
I believe you have it the wrong way round

A search on google reveals that both forms have the same meaning according to many on-line dictionaires.
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Old 27th December 2002, 07:47 AM   #12
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http://www.bartleby.com/65/le/lead.html

Because it has excellent vibration-dampening characteristics

http://dictionary.reference.com/search?q=dampening

http://www.m-w.com/cgi-bin/dictionary

Main Entry: damp·en
Pronunciation: 'dam-p&n
Function: verb
Inflected Form(s): damp·ened; damp·en·ing /'damp-ni[ng], 'dam-p&-/
Date: 1547
transitive senses
1 : to check or diminish the activity or vigor of : DEADEN <the heat dampened our spirits>
2 : to make damp <the shower barely dampened the ground>
3 : DAMP 1c
intransitive senses
1 : to become damp
2 : to become deadened or depressed
- damp·en·er /-n&r/ noun

http://www.yourdictionary.com/ahd/d/d0018100.html

http://dictionary.cambridge.org/define.asp?key=damp*1+0

http://poets.notredame.ac.jp/cgi-bin...un%20dampening
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Old 27th December 2002, 07:54 AM   #13
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http://www.b6akustik.dk/engelsk/index_eng.htm

this company describes it's products as vibration dampeners

A search on the net reveals that there is no right way to use damping or dampening... which I am suprised at...
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Old 27th December 2002, 08:03 AM   #14
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Default Re: "Dampening is the act of getting something wet."

Quote:
Originally posted by mrfeedback
Thanks Dave, I was going to say the same.

"Damping the chassis & various other parts of almost any electronics can have a beneficial effect if applied in the right places. "

In addition to the loss characteristics of the damping used, the elements used add a further sonic characteristic.
Lead is a wonderful mechanical damping material, but adds a leaden tone.
Blue-tack sounds horrible ime.

Eric.
You really believe that you can sense the charecteristics of the damping/dampeneing medium? I am not sure that I can buy this claim...

BTW this site is excellent. I am amazed at what some people have built. I have a Masters in engineering - so I shall make an attempt at something good myself.. I shall use this site for inspiration.
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Old 27th December 2002, 08:07 AM   #15
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I mean the material used imparts sonics due to field effects.
See The Sound Of Chassis .

Eric.
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Old 27th December 2002, 02:10 PM   #16
halojoy is offline halojoy  Sweden
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I believe dampening of vibration & resonances
in chassis is not nessesary in digital machines
like CDs.
The real benefit is in TurnTables and such.
Michrophones in recording situation.

A digital have only two states of information 0 and 1.
A vibration will not change that.
Neither will the clock signal be affected
to an audiable degree.
-----------------------------------------------------
So dampen and protect my TurnTable from
outside Vibrations and Soundwaves, YES.

Any more dampening than what is already present
on my CD-player , NO
-------------------------------------------------------
But who is gonna stop you from doing what
you think alters your impression of sound?

I know I can NOT do it.

/halo - has limited effect on other persons
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Old 27th December 2002, 05:38 PM   #17
Bobken is offline Bobken  United Kingdom
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Hi Halojoy,

I would be interested to know what has given rise to your clearly-stated beliefs over not damping CD players.

Have you tried out what I have done and found it not to be beneficial?
If not, is it very helpful to anyone else to express such unfounded beliefs?

Regrettably, I cannot give you any explanation for what does actually happen here, but that doesn't trouble me at all.

The improvements are not at all illusory, in spite of your beliefs, and if you have a CD player with a single bolted down torroidal transformer, why don't you just try and loosen off the central retaining nut as I suggested, and see what happens?

It shouldn't take more than a few minutes at the most, is completely reversible, and will cost you nothing!

This is not quite the same thing as adding damping to different areas of the player, but the effect is the same in that it reduces the transformer's inherent vibrations from affecting the entire electronic circuitry and the laser etc, in one quite simple step.

Having done that, you might just be surprised, and decide that, no matter how unlikely it may seem from simple theories about 1's & 0's etc., it would be worth trying out some damping in the CD player to deal with some of the other vibrations which *do* have a negative affect on a CD player's performance.

I would be very interested to hear further from you on this subject if and when you have some worthwhile feedback, based on practical experience, to add to this thread.

Regards,
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Old 27th December 2002, 05:46 PM   #18
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I agree with Bob. Controlling vibrations in a CD player is very important, as important as with a TT.

This is what I had to use to voice a player to my taste.

Sand box on a bottom, an epoxy based platform, 3 spikes supporting a granite/blown rubber sandwich and acrylic blocks directly under the player. Each of those components had influence on a sound.
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Old 27th December 2002, 06:57 PM   #19
Bobken is offline Bobken  United Kingdom
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Quote:
Originally posted by Peter Daniel
I agree with Bob. Controlling vibrations in a CD player is very important, as important as with a TT.

This is what I had to use to voice a player to my taste.

Sand box on a bottom, an epoxy based platform, 3 spikes supporting a granite/blown rubber sandwich and acrylic blocks directly under the player. Each of those components had influence on a sound.
Hi Peter, whilst I know from many hours of patient trials that what I said was true (however unlikely it may seem), I am pleased someone so well-respected on the board has expressed a similar view.

Clearly, there are a great many doubters who have never taken the trouble to try these things out for themselves, and in expressing such negative opinions, they don't help with my sincere efforts to encourage others to 'have a go' for themselves.

Incidentally, and for what it is worth, having scanned the Forum as a guest for some months now, I have realised that my experiences have so far entirely coincided with those of your own which you have expressed on many matters.

It is one helluva coincidence that two people from opposite sides of the Atlantic appear to have discovered the same phenomena as we appear to have done, or could it just be that as result of our open-minded approach and diligent efforts, we have simply got some of these things right?

No doubt the sceptics who are too lazy to carry out their own investigations will say that we are deluding ourselves, but if they knew how difficult it is in identifying these problems, and even more difficult in overcoming them, they might just have the wit to think again.

I greatly admire the engineering in your DIY equipment, and your standards of construction make someone like myself, who is a similar perfectionist, rather envious.

Just because it is home-made, our audio equipment does not have to look shoddy, and you are a shining example for us all to follow!

Regards,
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Old 27th December 2002, 09:01 PM   #20
halojoy is offline halojoy  Sweden
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Thumbs up What should be the logical explaination?

If your experiences are true,
then there is an explaination.

I do not believe in magic.
"I ain't Supersticious" an old song recorded by Stevie Wonder.

The day I get the logical described to me (I am old fashion enough
to still trust in the law of Cause and effect)
That day I will start using dampening of digital machines.
To get better "1" and "0".

So until I get a proper explaination:
Sorry guys - I will not try to do
what I find logical unnessesary.
-----------------------------------------------

So why do I belive in GOD, who noone has seen ever,
at least with valid documentation.

Well, what can I say?
I guess I believe in magic, anyway - Just a little bit ....

/halo
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