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Old 4th August 2012, 02:30 PM   #131
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Quote:
Originally Posted by ondesx View Post
Are you sure of this statement ?... I definitely will give a try before any conclusion...
As sure as you were of your statement
Try is always good, but some things are pretty clear beforehand.
A violin string will never generate a flat full audio spectrum, no matter how hard you try, so if you think that this construction works like a string, good luck!

jan
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Old 4th August 2012, 04:49 PM   #132
ondesx is offline ondesx  France
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Originally Posted by janneman View Post
As sure as you were of your statement
Try is always good, but some things are pretty clear beforehand.
A violin string will never generate a flat full audio spectrum, no matter how hard you try, so if you think that this construction works like a string, good luck!

jan
Precisely, I don't have any statement for the moment regarding this device... Only the required specs of the actuator. You have one instead.

And no Sir, I don't pretend and never wrote that this device works like a string neither. But, I learned long time ago that a vibration of a material will result in the vibration of the surrounding fluid, here the air. Since this diaphragm vibrates at several frequencies, there is a chance you are facing a driver...

What is the usefull frequency range of this device remain simply... unknown from yet! At least for us not for the inventor...

Last edited by ondesx; 4th August 2012 at 04:53 PM.
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Old 4th August 2012, 05:22 PM   #133
SY is offline SY  United States
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The violin string puts out very little sound. Most of the intensity comes from the sounding board.
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Old 4th August 2012, 06:28 PM   #134
ondesx is offline ondesx  France
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The violin string puts out very little sound. Most of the intensity comes from the sounding board.
Yes, this is perfectly true, and then the string vibration moves the air, which moves... the wood and the wax, or more exactly the air vibration resonates with some of the "modes" of these structures i. e. the secrets of M. Stradivarius !...
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Old 4th August 2012, 06:57 PM   #135
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Actually, the string couples to the sounding board via the bridge, much more directly than it could via the air.
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Old 4th August 2012, 08:03 PM   #136
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Quote:
Originally Posted by ondesx View Post
Precisely, I don't have any statement for the moment regarding this device... Only the required specs of the actuator. You have one instead.

And no Sir, I don't pretend and never wrote that this device works like a string neither. But, I learned long time ago that a vibration of a material will result in the vibration of the surrounding fluid, here the air. Since this diaphragm vibrates at several frequencies, there is a chance you are facing a driver...
OK, then I don't know what it is you were meaning with:
"Since a simple and thin chord is able to deliver a sound like on a violin or a guitar, why a thin and light diaphragm wouldn't have a similar action ?... "...
I mean, you seem to be saying that because a string can make a sound like on a violin, therefore a thin and light diaphragm could be a driver ... ? Hmmm. Maybe you meant: "anything that vibrates makes a sound"? I would agree to that.

jan
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Last edited by jan.didden; 4th August 2012 at 08:06 PM.
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Old 4th August 2012, 08:51 PM   #137
sreten is online now sreten  United Kingdom
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Quote:
Originally Posted by ondesx View Post

What is the usefull frequency range of this device remain simply...
unknown from yet! At least for us not for the inventor...
Hi,

It not unknown at all and certain aspects are highly predictable.

One thing for sure is it produces no useful bass output whatsover,
and there is no reason to think the rest of the range resembles
hi-fidelity in any shape or form either. There is no theory and
so no real design, jut a load of hot air and not much else.

rgds, sreten.
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Old 4th August 2012, 09:08 PM   #138
planot is offline planot  United States
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Originally Posted by sreten View Post
Hi,

It not unknown at all and certain aspects are highly predictable.

One thing for sure is it produces no useful bass output whatsover,
and there is no reason to think the rest of the range resembles
hi-fidelity in any shape or form either. There is no theory and
so no real design, jut a load of hot air and not much else.

rgds, sreten.
What do you consider usefull bass? What would the 3db down point be in a typical living room?
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Old 4th August 2012, 09:23 PM   #139
Remlab is offline Remlab  United States
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Originally Posted by planot View Post
What do you consider usefull bass? What would the 3db down point be in a typical living room?
I asked Julian Bunn about the bass issue. His response was that yes, it probably could produce bass, but only if you made the 'diaphragm' larger. Hmm..
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Old 4th August 2012, 09:31 PM   #140
ondesx is offline ondesx  France
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Originally Posted by janneman View Post
OK, then I don't know what it is you were meaning with:
Maybe you meant: "anything that vibrates makes a sound"? I would agree to that.

jan
This is now exactly what I meant... I have to add: if there is a surrounding fluid or material able to propagate this vibration. And again, I just ignore for now the exact frequency range of this device provided I get the adapted actuator to drive efficiently a diaphragm (to be complete, I have also to investigate on this part too...)
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