I want to make a diffusor....like this.....(pic inside)

[Mr Music]

I have bass traps
I have absorbers
I have clouds

I want to make a diffusor


What if i were to put some of this in the back.......sides......and front of the room.....


http://www.soundcontrolroom.com/photos/james_taylor/pages/g_WdSlats_CornerTreat.htm

they look like they are pretty easy to make...

my room is 17 feet by 9 feet.....8 feet tall...

i was thinking of making 8 feet tall pieces of wood like this...probably 1 foot out.....and just stack them and have them hang like this....


what do u guys say....would that diffuse....

i still feel the slap back and somewhat reverb/echo in the room....
but it did go down sooooooooo much .....comparing to before.....

ill have full info this week with real detailed stuff about the room...

 

[RICK FITZPATRICK]

I've seen these before. They are designed by a well known studio designer, but from my understanding have NO tests to show their impact on diffusing specular reflections. My guess is the well depths and widths do NOT vary, therefore 1/4 and 1/2 wavelengths that match these dimensions are the only ones that will be affected. And to what extent is questionable. At least from what I understand. Broadband diffusion of mid to high frequencies can be achieved by a variety of diffuser designs, such as Quadratic residue, prime number, and poly cylindricals, and even random quasi diffusion from bookcases.
However, there is a school of thought that diffusers should only be used at the rear wall(control room) and the distance from diffuser to engineering position should approximate 3 times the distance from engineering position to monitors. Otherwise, use of diffusing elements within the monitoring sphere will smear the direct sounds. Then there is a school of thought that says true diffusion in small spaces is almost impossible. Especially at lower frequencies as geometric protrusions would have to approximate room dimensions. For wavelengths longer than the longest room dimension, there is no physical way.

The subject of diffuser use and location in SMALL control rooms has been a debateable and questionable phenomena for quite a time. It has been suggested to me by a well known studio designer, that in fact, LEDE designs utilizing Quadratic diffusers do NOT work, and miles of these have been torn out of studios that have been remodled. On the other hand, I know of a new World Class studio that is utilizing them extensively, although room size has a lot to do with it It has also been suggested to me by another well known acoustician, that a good start at diffusion can be achieved by small patchwork use of ABSORBERS, because of the "edge effect", which is diffraction causing impedence mismatch at absorber/wall boundarys. Again, at least from what I understand. I've also been told by another acoustician that for all the work it takes to build these sort of geometrical type units, a simple poly cylindrical can perform just as well at a fraction of the cost and time.
Now for my disclaimer. I'm no expert, and those that are and disapprove of what I've stated are welcome to set the record straight if I'm not in the ballpark.

To that end, here is a link to the best info I could find on diffusion, if you can filter it out. I still think those in your picture are ......well, not really "diffusers" per se. Just quasi diffusers. Just my .02 too.
http://forum.studiotips.com/search.php?mode=results

 

[Ethan Winer]

Rick,

> The subject of diffuser use and location in SMALL control rooms has been a debateable and questionable phenomena for quite a time. <

At the AES show this past Friday I was on a panel with a bunch of acoustic treatment experts, and Dr. Peter D'Antonio gave a fascinating presentation about (finally) achieving a set of standards to benchmark the effectiveness of diffusors. He said it's described fully in his new book, but the name of the book escapes me at the moment. His talk was great, and Dr. Peter is truly an expert with this stuff.

--Ethan