T
triple cubic
New member
Okay, how about carpet underlay with bed foam over it? And where can I get the fiberglass sheets from? Anywhere online? Holla.
Badger
Active member
triple cubic said:
Fiberglass insulation is available at any home improvement store, either in bats or in rolls
T
triple cubic
New member
Okay, I'll look into that, thanks everyone...
What kind of material is best to cover the fiberglass? Because I don't wanna get poked inside my mic booth!!
- T
What kind of material is best to cover the fiberglass? Because I don't wanna get poked inside my mic booth!!
- T
T
Transputer
Member
Triple,
You should check out Miraflex fibreglass made by Owens Corning cost the same as regular stuff just about and literally feels like cotton wool. If that's no good dacron - furniture wadding. As for cloth I have used burlap (hessian in the UK) effective but has a certain earthy smell to it, now most of my absorbers have black denim ( cos it was the right price) over them.
I have plastic around the fibreglass core on some absorbers and it makes no difference to the characteristics of the panel.
Cheers
You should check out Miraflex fibreglass made by Owens Corning cost the same as regular stuff just about and literally feels like cotton wool. If that's no good dacron - furniture wadding. As for cloth I have used burlap (hessian in the UK) effective but has a certain earthy smell to it, now most of my absorbers have black denim ( cos it was the right price) over them.
I have plastic around the fibreglass core on some absorbers and it makes no difference to the characteristics of the panel.
Cheers
Blue Bear Sound
New member
I trust Craig when he talks about electronics/elec. components, etc... but he's NOT a studio designer.darrin_h2000 said:
We have a resident expert who IS a designer though (John Sayers) and I'd trust HIS counsel more than Craig's, especially in this matter!
Bruce
darrin_h2000
Banned
I wonder if hes used this technique then. Im sure that millions of studio guys have heard the advise to use the egg cartons. there must be something to it. Personally I have no use for it myself.
N
Newest User
New member
triple cubic said:
I know Im gonne get alot flammage for voicing this thought, esp. from Bruce and John
The keyword is somewhat for deadening sound, which is not to be confused with efficient sound control. From a pure Physics or accoustic stand point, styrofoam and any cardboard composite material that is shaped with peaks and valleys will reflect sound. Simple right! Not exactly. The basic problem is the shape first of all. The shape is not designed as such to control the diffractions and reflections. If the reflections occur at odd angles you lose control and the room could sound even worse. Another problem is if its a closed cell foam, which will increase your active surface area. That means if a wall is 8x8x6, covering it completely with closed cell styrofoam egg crates material will make your room sound 2/3rds larger. As a summary, you will make things worse IMO if your resort to egg crate.
triple cubic said:
Blue Bear said:
If a fly traveling at 2 miles per hour, hits a train traveling at 70 mile per hour, will the train slow down? Yes, Its to what degree does the train slow down... Neglible.
I typically wont use a fly to slow down a train...Use the right tools if you expect to get the right results.
triple cubic said:
Fiberglass Batting in multiple layers is probably the most cost effective choice. Its easy to install as well. If your worried about appearance, use black velvet instead of burlap as the covering.
Peace,
Dennis
elevate
New member
I was wondering around Lowe's the other day looking at some fiberglass insulation and it seemed like every batch I saw had a "DANGER - CARCINOGEN!" label on it. Do I need to look for different insulation, or is everything carcinogenic?
Badger
Active member
elevate said:
Pretty much everything is. Definately wear a mask, gloves, and longsleeves, and take a shower and wash your clothes right afterwords. I'm sure prolonged, unprotected breathing of the shit would be bad, but were not talking uranium here, this stuff is in nearly every house in america.
darrin_h2000
Banned
But then Cancer kills more of us than just about anything else.
Have a nice day.
Have a nice day.
Z
zenlizard
New member
high, mid, and low frequency absorbsion
I'm going to take the advice and build the fiberglass batting, but I'd love more info on how to make 'em. For example, how many layers of what type of fiberglass should be stuffed into these "pillows." should they be packed as densly as I can make them, or left somewhat loose. Should/can they be framed in some way?
And what about lower frequencies. Are there methods for making homemade bass traps/diffusers that won't cost a mint?
I have a friend who used all sorts of expensive materials to make his room "dead," but only succeeded in making his room muddy.
I've been in some high end studios, and none of them were completely "dead" at any frequency.
I'm going to take the advice and build the fiberglass batting, but I'd love more info on how to make 'em. For example, how many layers of what type of fiberglass should be stuffed into these "pillows." should they be packed as densly as I can make them, or left somewhat loose. Should/can they be framed in some way?
And what about lower frequencies. Are there methods for making homemade bass traps/diffusers that won't cost a mint?
I have a friend who used all sorts of expensive materials to make his room "dead," but only succeeded in making his room muddy.
I've been in some high end studios, and none of them were completely "dead" at any frequency.
Badger
Active member
You dont want to compress the the fiberglass. For me one layer of the thick stuff worked fine. If its compressed, there is not as much space inbetween the fibers for the sound to bounce around in and get lost. I would just hang them on the wall, not frame in.
There were some links for a lost cost bass trap on this board somewhere, you might do a search
There were some links for a lost cost bass trap on this board somewhere, you might do a search
A
aswhitehead
New member
Try Rockwool
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Originally posted by elevate
I was wondering around Lowe's the other day looking at some fiberglass insulation and it seemed like every batch I saw had a "DANGER - CARCINOGEN!" label on it. Do I need to look for different insulation, or is everything carcinogenic?
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Try rockwool panels. You can get them in 2'x4' sheets in varying thickness and they are CHEAP!! They work great for high frequency absorption when made into wall mounted panels and you could also stack them in walls.
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Originally posted by elevate
I was wondering around Lowe's the other day looking at some fiberglass insulation and it seemed like every batch I saw had a "DANGER - CARCINOGEN!" label on it. Do I need to look for different insulation, or is everything carcinogenic?
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Try rockwool panels. You can get them in 2'x4' sheets in varying thickness and they are CHEAP!! They work great for high frequency absorption when made into wall mounted panels and you could also stack them in walls.
E
Eric Best
New member
Where can you get rockwool panels? What manufacturer?
Eric
Eric
A
aswhitehead
New member
I bought mine at a local heating and air insulation supply house. You won't find it at your local home improvement warehouse. Look for the biggest insulation supply house in your area or a large heating and air company. They should be able to get it for you or point you in the right direction.
A
ap
Member
This is complicated subject with lots of 'ifs', 'ands', or 'buts'.
I think you REALLY have to respect F. Alton Everest, author of Sound Studio Construction On a Budget, among others. He has charts from scientific experiments and comments on them. Rigid fiberglass (owens 703) is every bit as effective as the expensive stuff. In fact, on a per inch thickness basis, it's more effective. For example, at 250 hz, 3" fiberglass has an absorption coeffecient of 1. You can't get that with even 6" sonex pyramid.
I have no experience, but I'd guess that the ridgid stuff isn't so nasty as the fluffy.
Also, the same book devotes a couple paragraphs to the safety issue. A 15 year study found no excess of respiratory disease among fiberglass workers. As of '95 there had been no proof of fiberglass hurting anyone, and quite a bit of evidence that it is safe. I guess something could have happened between then and now that made that company put the warning on the product. I suspect they're just covering their asses just in case.
I think you REALLY have to respect F. Alton Everest, author of Sound Studio Construction On a Budget, among others. He has charts from scientific experiments and comments on them. Rigid fiberglass (owens 703) is every bit as effective as the expensive stuff. In fact, on a per inch thickness basis, it's more effective. For example, at 250 hz, 3" fiberglass has an absorption coeffecient of 1. You can't get that with even 6" sonex pyramid.
I have no experience, but I'd guess that the ridgid stuff isn't so nasty as the fluffy.
Also, the same book devotes a couple paragraphs to the safety issue. A 15 year study found no excess of respiratory disease among fiberglass workers. As of '95 there had been no proof of fiberglass hurting anyone, and quite a bit of evidence that it is safe. I guess something could have happened between then and now that made that company put the warning on the product. I suspect they're just covering their asses just in case.
darrin_h2000
Banned
So Just to be safe dont snort a line of it.
R
Richard Monroe
Well-known member
Blue bear, the US parlance refers to corrogated or lumpy high density open cell foam mattress overlays of the type used in hospitals and nursing homes as "egg crate" mattresses. They are not talking about egg cartons, which some primitive audiophiles did use in "ancient times" for room conditioning with variously alleged success. In general, the higher density the foam, the more expensive it is. High quality mattress everlays make perfectly adequate baffle foam, but cost every bit as much as auralex et. al. Cheap bargain basement chain egg crates tend to be of lower density, and some of the high end specialty overlays are a hell of a lot better than auralex, but the sticker price will kill you. You think room conditioning is expensive, try medicine. Some Roho wheelchair cushions go for $500-750 US, and I'm sure they're the best baffles around. If you get a line on really good mattress overlays cheap, let me know.-Richie
A
Axis
oompa loompa
Ok I have my studio in the basement, wooden walls (if that makes a difference). The rest of the family always complains about me being to loud (they are on the floor ontop of me) I can get a bunch of egg foam for free. But according to what i have read that won't help at all. Is there anything i can do to help soundproof the room thats extremely cheap. WITHOUT USING FIBERGLASS! i hate that stuff.
thanks,
WIll
thanks,
WIll
Blue Bear Sound
New member
Basically... no...Axis said:
You would almost certainly need to do major renovation to build an appropriate shell (ie, room within a room) to get that kind of sound-containment. A bit of foam tacked to the ceiling will cut some reflection, but will do NOTHING to stop sound waves from transferring to the floor above.......
You can't get away from the basic physics of sound transmission!
Bruce