do egg cartons work?

  • Thread starter Thread starter oldskooldave
  • Start date Start date
No, but egg cartoons do.

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eggy.jpg
 
HA HA HA HA HA HA HA HA HA HA HA HA HA HA and HA dinty----YOU
 
Greg says he heard a noticeable difference and even if it only happened once, he reckons it happened. Who's going to flame him ?
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If he did before and after measurements with software and had data to post I would be able to determine the degree (if any) that the change was - and whether that was indeed for the better....... different is not necessarily better.......

However - the fact that he did not do that - and that all we have are his observations - then the comment is (to the real world) meaningless.

AND THIS IS NOT A FLAME........... I am not criticizing him - but am merely stating fact.......

There is always the possibility that a placebo type of effect is taking place - exactly the same as the people who get better when all they are oin is a sugar pill in a control group.

We know the pill could not possibly help them - yet they feel better........

It is possible that he hears a difference - and possible that this is a matter of psychoacoustics - I don't know because i have never been in his room - but the one thing I do know to be a fact - and that is that egg cartons cannot measurably add any significant benefit to a room acoustically speaking.

The can (however) create one heck of a death trap from the prospective of the fire hazard they introduce.

Rod
 
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thanks for explaing placebo...and i thought it was just the name of a whiney band ;)
 
Rod Gervais said:
If he did before and after measurements with software and had data to post I would be able to determine the degree (if any) that the change was - and whether that was indeed for the better....... different is not necessarily better.......

However - the fact that he did not do that - and that all we have are his observations - then the comment is (to the real world) meaningless.

AND THIS IS NOT A FLAME........... I am not criticizing him - but am merely stating fact.......

There is always the possibility that a plecebo effect is taking place - exactly the same as the people who get better when all they are oin is a sugar pill in a control group.

We know the pill could not possibly help them - yet they feel better........

It is possible that he hears a difference - and possible that this is a matter of psychoacoustics - I don't know because i have never been in his room - but the one thing I do know to be a fact - and that is that egg cartons cannot measurably add any significant benefit to a room acoustically speaking.

The can (however) create one heck of a death trap from the prospective of the fire hazard the introduce.

Rod
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I heard it too. It's not a "placebo", especially since I listened with very skeptical ears. I don't have scientific data to back it up, and I'd never suggest eggshell foam to anyone, but I did hear the difference, it was noticeably better, and my ears are pretty good. But like I said earlier, I'm not 100% sure there wasn't some fudging involved. All I heard was 2 clips and saw some pics. But if the guy is telling the truth, then his eggshell foam made a difference in his room for the better. Science be damned.
 
look ....... putting egg cartons on the walls is absolutely gonna make a difference ........ period. Also hanging towels on the wall will make a difference and probably flat paint as opposed to high gloss.
They're all gonna make some difference because a different surface is flat-out gonna reflect sound differently.
On one surface maybe more mids get reflected than on another for instance.
Egg cartons are gonna act like a diffuser to some extent even if it's small and therefore they're gonna change the early reflection patterns or the freq's of those early reflections.

That's NOT to say it's a desirable difference and it's been well established that egg cartons do nothing for soundproofing and don't do a lot of good as studio treatment.

But the fact that it's been established that they're not very good isn't the same thing as saying they'll make no difference and it seems funny that anyone would argue that they're not convinced greg heard a difference.
I'd be quite surprised if anyone with decent ears DIDN'T hear a difference.

I think we can all agree that hanging cloth on all your walls will make a difference in the rooms' sound. Egg cartons are gonna have at least as much effect as cloth.
 
Greg_L said:
But if the guy is telling the truth, then his eggshell foam made a difference in his room for the better. Science be damned.
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Are you talking about acoustic foam - as in the sort of thing that Auralex makes and sells?
 
Rod Gervais said:
Are you talking about acoustic foam - as in the sort of thing that Auralex makes and sells?
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No, I'm talking about that yellow mattress covering eggshell foam that you buy at Target. That's what it looked like in the pics.
 
Greg_L said:
No, I'm talking about that yellow mattress covering eggshell foam that you buy at Target. That's what it looked like in the pics.
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oh ...... well that's way different than egg cartons I would think.
Probably behave a bit more like acoustic foam.
 
Lt. Bob said:
oh ...... well that's way different than egg cartons I would think.
Probably behave a bit more like acoustic foam.
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That's why in every post I've made in this thread I made sure I typed "eggshell foam". I think some people have selective reading or poor comprehension. I've never seen or heard of anyone retarded enough to actually hang egg cartons on their walls.
 
Greg_L said:
That's why in every post I've made in this thread I made sure I typed "eggshell foam". I think some people have selective reading or poor comprehension. I've never seen or heard of anyone retarded enough to actually hang egg cartons on their walls.
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well ..... they do make foam egg cartons.
 
 
A couple of months ago I decided to buy some foam to help tame the flutter echo in my room. I already had bass traps, and I wasn't going for sound proofing, but literally just wanted to control some high end reflections. That said, I had just dropped a bunch of money on a new interface, new sub, and a bunch of other stuff, so I wanted to try and keep the foam as inexpensive as possible...no fiberglass panels or DIY either, I just didn't have the ambition to do any more of that stuff.

So...without doing much research, I bought some cheap egg shell foam from an online company that will remain unnamed. Big mistake. The stuff smelled really bad, was really flimsy, looked like crap, and I'm pretty sure that if anyone as much as passed gas in my control room, it would have burst into flame. Also, after I made the purchase, I read somewhere where someone was explaining that mattress foam like what I bought is absolutely NOT the same thing as Auralex foam, and if you're not into reading about absorption coefficients you can do a quick and simple test to prove it to yourself that it doesn't absorb high frequencies anywhere near as well. Simply hold a piece of the cheap eggshell foam up next to your ear, then rub your fingers together on the other side of it. It will sound like there is absolutely nothing between your fingers and your ear. All the highs come straight on through. Try the same thing with a piece of Auralex foam and you'll hear an obvious and very noticeable difference in the amount of highs that are getting to your ears. Well, I happened to have a piece of Auralex foam laying around that was leftover from a very small batch that I had previously purchased, and I can tell you that the difference just in doing that little test was pretty amazing.

I packed the cheap eggshell foam into a box and shipped it back. I actually ended up losing money by the time I paid the ridiculous amount to ship it back, but by then it was a matter of principle :( The good news is that I later found a great deal on some real Auralex foam from a local seller, and ended up getting a boatload of it for the same price I originally paid for the "cheap" stuff. Lesson learned.

So, I guess I'm not saying that mattress/eggshell foam doesn't work at all to stop flutter, but compared to the Auralex foam I had, it certainly didn't absorb highs as well. Maybe it does some diffusion, and that's why it helped in PI's test...? Which brings me to the point that it all depends on what you are trying to do with it. If you are trying to tame high end, I'm sure there are other materials that work as well or better than Auralex foam for absorption, heavy blankets, Owens Corning Fiberglass, etc, but the eggshell foam from mattress pads isn't one of them in my opinion.

Best Regards,

Dave DeWhitt

P.S. I am not affiliated with Auralex in any way other than being a customer, I don't even own stock :)

http://www.soundclick.com/davedewhitt
 
Yeah man, I don't suggest anyone use foam eggcrate mattres padding, but it seems to have done something for PI. I use actual bass traps, clouds, and absorber panels myself.
 
Greg_L said:
Yeah man, I don't suggest anyone use foam eggcrate mattres padding, but it seems to have done something for PI. I use actual bass traps, clouds, and absorber panels myself.
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I'm confused Greg.... you sleep on what?:laughings:



:cool:
 
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