Sound deadener pot stir
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I designed a setup that would test the ability of a deadener to absorb heat, reflect heat, stop sound, reflect sound, deaden motion, conduct heat, and more through sheet metal test sheets. I was going to do a big scale test and try and seek donations of deadener but I figured it would be a HUGE time investment and was unsure of the interest people would have.
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Damn, I'm only bummed that DIYMA didn't get there first. Anyone want to lay some bets just based on experience?
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Shenanigans!
ASTM E756 -05 Standard Test Method for Measuring Vibration-Damping Properties of...
Seriously.....
ASTM E756 -05 Standard Test Method for Measuring Vibration-Damping Properties of...
Seriously.....
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I don't think they claimed that there was no method, only that there hasn't been anyone who has done the comparison.
I'm sure you're kidding, but just in case anyone thinks you aren't:
Registrars.icixsound.com
Registrant:
Ben Milne ([email protected])
Elemental Designs
808 Ansborough Ave
Waterloo, IA 50701
US
319-277-7123
Yup. If performance is the only question, this is the only testing methodology that everyone will agree on. Has to be fully documented and should be run through the same lab for absolute consistency. It doesn't really model closed termination structures like vehicle sheet metal panels, but it definitely gives you something to compare.
Funny that this guy has a bug up his ass about temperature testing when the main reason for doing it was to find out which companies where lying about their products formulation and yeah, ED was at the front of that line. Funny also that when he last posted this idea several months ago, a polymer chemist explained why high temperature testing was valid and important. Guess it's easier to ridicule than to admit you have no idea what you're talking about. While he's at it, he might want to test the last 2 versions of eDead and compare the results to the claims he and his pals made for those products.
In any case, I'll be very happy to see proper performance testing results. I think he'll do a little better with the fund raising if he identifies the lab and the methodology he's planning to use. The best price I've ever been given is $600 per sample, so he's going to need some serious dough to get this going.
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Seems like they need some of their own results to dispute the claims the SDS makes. Not surprising as the products they sell now are not the same as the one listed on the sound deadener showdown.. Can't blame eD for trying to update things a bit..
I have not heard however how they plan on doing the testing.
There is a specific and proven way to test vibration dampers just as there is a different but equaly accurate way to test subwoofers, mids tweets amps. No need to reinvent the wheel. Just go get an Oberst bar rating..
I also take issue with Regals opening statement:
That right there tells me that the test and the tester is either biased or, has no clue what he is talking about.. If they plan on getting real testing done by a real acoutics company they might be very upset to find that temperatures ratings are going to be part of the results. Unless they specifically ask not to have those tests done for some strange reason..
Making jokes about people parking their cars in 400 degreee garages reminds me of the immature defence that that people pull out when backed in to a corner:
The best way to bolster your less than perfect ability is to discredit the method in which your ability is tested..
As if thermal ratings play no part in the testing of these products.
ANT
I have not heard however how they plan on doing the testing.
There is a specific and proven way to test vibration dampers just as there is a different but equaly accurate way to test subwoofers, mids tweets amps. No need to reinvent the wheel. Just go get an Oberst bar rating..
I also take issue with Regals opening statement:
.
That right there tells me that the test and the tester is either biased or, has no clue what he is talking about.. If they plan on getting real testing done by a real acoutics company they might be very upset to find that temperatures ratings are going to be part of the results. Unless they specifically ask not to have those tests done for some strange reason..
Making jokes about people parking their cars in 400 degreee garages reminds me of the immature defence that that people pull out when backed in to a corner:
The best way to bolster your less than perfect ability is to discredit the method in which your ability is tested..
As if thermal ratings play no part in the testing of these products.
ANT
There is a rough correlation between to temperature resistance and performance, just as there is a relationship between adhesive bond strength and damping performance. After you eliminate the basic durability issues, foil and adhesive consistency are going to have the biggest impact on performance - in a very predictable way.
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Humans need not be part of the testing process. We don't need to read a comparison, we need data.....just like what a Klippel does for us with speakers.
I think any field testing is good idea, but that should be something we should be doing, not paying someone else to. Because lets face it, not everyone uses "deadener" the same way.
Oh, and this Regal guy was going to do this a couple of years ago now, right? Might as well save his money and not waste his time because 3 out of 4 Doctors don't recommend Eduh. I'm just saying his results will be highly ridiculed due to his association with that company (even if he's an honest guy that just happens to post on that forum a lot.)
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They do kind of attack "Sound Deadener Showdown" in that thread and another thread I stumbled across over there, and it was a moderator who did so. I kind of wish that wouldn't happen.
I do however hope that they do perform test and post the results.
ICIXSound.COM Forums - What kind of deadner do you use?
I do however hope that they do perform test and post the results.
ICIXSound.COM Forums - What kind of deadner do you use?
- I have to disagree with that.
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Where can we get the data you speak of for sound deadeners?
Just read Regal's posts regarding eDead and all things ED. His only problem with me is that I haven't liked any of the versions of eDead. What he calls bias is me pointing out that Ben Milne and his employees (of which Regal was/is? one) have lied repeatedly about their deadening products. Here he is at an ED meet at ED HQ:
We'll have to wait and see, but if his testing is valid, the latest, greatest eDeads will probably be near the bottom of the butyl/foil pile (if they actually are butyl/foil). I've given up on eDead because ED has been consistently dishonest about what they are selling and even after the truth comes out, have been unable to maintain consistency between batches - being the first to achieve adhesive failure with a butyl product. With so many companies producing quality products and offering good support, why deal with the problems? If he tests the v1 and v1² versions he has been raving about about for all these years while launching personal attacks against me for daring to say the emperor has no cloths, both will be right there with Peel & Seal. We'll see just how honest he is willing, or able to be.
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Heh not really related but...I'm actually doing a standing wave tube test on some b-quiet/Roxul Safe & Sound this weekend if anyone is interested in B-Quiets incidence absorption coefficient and maybe the acoustic impedance as well.
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It never ceases to amaze me the lengths some people will go to discredit someone or something before the actual event has occurred.
You could at least offer the decency to let the tests occur before you rip into it.
I will be interested to see the results. I am far from a sound deadener expert, but it sounds like they intend to test from an intended application perspective, which makes a lot of sense to me.
You could at least offer the decency to let the tests occur before you rip into it.
I will be interested to see the results. I am far from a sound deadener expert, but it sounds like they intend to test from an intended application perspective, which makes a lot of sense to me.
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From the manufacturers that submit them for testing and then publish it. I know CAE and Dynamat do for many of their products, not just CLD mat. There are others too, just can't think of them off the top of my head.
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