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View Full Version : Acoustic Treatment -- Absorbtion, Diffusion, Traps


nobby
January 26th, 2007, 08:58 PM
I'm mainly interested in affordable/ DIY stuff, but I welcome any info pertaining to this subject.

What really got me interseted was looking at Auralex' Space Array and thinking about bbkong's homemade diffuser I saw in a pic of his studio. And, of course, looking at Auralex's price for a 2' x 2' diffuser :Roll eyes:

paulie
January 26th, 2007, 09:34 PM
hi

When I built traps for my place this site proved useful.

www.ethanwiner.com/basstrap.html

cheers

Paulie.

nobby
January 26th, 2007, 11:03 PM
Good catch there, Paulie. There's a lot to absorb at that site, no pun intended.

Here's the Auralex Site. I'm particularly intersested in the diffusers (I have quite a bit of their absorbtion material, maybe a little too much). I'm most interested in their "Space Array" which is esthetically pleasing to look at, no doubt effective, and probably cost them $20 apiece from China. Maybe not.

I'm thinking they may be unnecessarily elaborate? Can the same effect be achieved with, uh, fewer pieces of wood?

http://www.auralex.com/partscience/spacearray.asp

nobby
January 26th, 2007, 11:19 PM
If you listen to the Slixervark Radio Show, part of the engioiment stems from the gorgeous room sound of the live room at Slipperman Studios.

There are panels on the wall, and I've been meaning to ask Slipperman what their composition is. I'm guessing there's a fiberglass component but that's just a guess.

MacGregor
January 27th, 2007, 12:32 AM
Hi nobby,
have a look here: http://www.mhsoft.nl/Diffusor.asp
Easy to understand and you can calculate your own diffusor.

I'm just in the middle of rebuilding my mixing room, when I'm
finished with the absorbers I'll add 2 of these.

Mac

Scott R. Foster
January 28th, 2007, 07:23 AM
I'm mainly interested in affordable/ DIY stuff, but I welcome any info pertaining to this subject.

Here are some links to DIY bass trap and diffuser designs you might find helpful.

http://forum.studiotips.com/viewforum.php?f=8

This bass trap particiularly easy and cheap to make, very effective:

http://forum.studiotips.com/viewtopic.php?t=534

And polys are excellent diffusers that cost about $1 per square foot to build... scroll down to the bottom of this page:

http://forum.studiotips.com/viewtopic.php?t=48

Good Luck!

Scott R. Foster
January 28th, 2007, 07:31 AM
Hi nobby,
have a look here: http://www.mhsoft.nl/Diffusor.asp
Easy to understand and you can calculate your own diffusor.

I'm just in the middle of rebuilding my mixing room, when I'm
finished with the absorbers I'll add 2 of these.

Mac

Nice link... if you can't get what you want out of it shoot me a message and I'll send you an Excel spreadsheet for calculating well diffusers of various types.

MudCat
January 28th, 2007, 08:54 PM
nobby.....you might try here. http://readytraps.com/

The owner (Joel DuBay) is a friend, and he'll fix you up to suit your needs. I've heard nothing but good things about his product.




-mudcat

Spock
January 28th, 2007, 09:29 PM
Nice link... if you can't get what you want out of it shoot me a message and I'll send you an Excel spreadsheet for calculating well diffusers of various types.

And with a little thought....

Books set to the right depth on a shelf would be very close to one of these diffusers.

chckn8r
January 28th, 2007, 09:35 PM
I'm thinking they may be unnecessarily elaborate? Can the same effect be achieved with, uh, fewer pieces of wood?

http://www.auralex.com/partscience/spacearray.asp

For the difuser solution, I've found that a couple of bookcases filled with old, unwanted books (or all the manuals you've "collected" over the years :) ) can do the trick nicely. I was going down the same path as you when I posed the same question to some pro engineers a while back and that's what they told me to try out...

just a couple of cents...

Joel DuBay
January 29th, 2007, 04:55 AM
The bookshelf idea has worked well in a pinch for lots of folks and many years. I say, DO IT!




Hey, thanks for the plug too. :Thumbsup:


If anyone needs any acoustics help, Scott and I will be happy to show you how to do-it-yourself. No sales pitch, just our attempt at helping good folks out however we can.

And that's no joke.



I am still working on a picture and video tutorial on how to make bass traps with easy to find materials and at pennies on the dollar.


Cheers all!

Joel DuBay
DIY BASS TRAPS (http://www.readyacoustics.com)
www.readyacoustics.com

malice
January 29th, 2007, 09:38 AM
If anyone needs any acoustics help, Scott and I will be happy to show you how to do-it-yourself. No sales pitch, just our attempt at helping good folks out however we can.

And that's no joke.



I am still working on a picture and video tutorial on how to make bass traps with easy to find materials and at pennies on the dollar.


Cheers all!

Joel DuBay
DIY BASS TRAPS (http://www.readyacoustics.com)
www.readyacoustics.com

We'll be delighted to host such a video tutorial, this is a great idea and feel free to chime and even talk about your product in our forum, I strongly encourage it.

I will soon try your DIY bass traps (I'm in europe, and it would be a bit cost prohibitive to send rockwool via plane :D ).

I need more space in my studio, and I will have to do a new control room from scratch.

malice

jimmyjazz
January 30th, 2007, 07:14 PM
Another vote for Joel's ReadyTraps product line. And here's a nice little heads-up: instead of using Owens-Corning 703 or 705, consider Fibrex 1280 mineral wool instead. It's performance is essentially identical to that of the OC product, but it is dramatically less expensive:

4" OC 705 = $5.56/sf
4" Fibrex 1280 = $1.16/sf