3D printing acoustic diffusers

[darrenyeats]

The idea of 3D printed diffusers popped into my head, a bit of web searching and behold!

http://umforum.ultimaker.com/index.php?/topic/8399-3d-printed-acoustic-diffusers/

Anyone tried or heard about something like this? Any advice on 3D printing and/or diffusers?

 

[Julf]

Anyone tried or heard about something like this? Any advice on 3D printing and/or diffusers?

Printing something like that would take quite some time, and not be cheap. You are better off finding cubes/boxes of the right size, and gluing a lot of them together...

 

[AndyU]

google "making quadratic residue diffusers".

Loads of diy options. Just start with your favourite prime number.

Or just google "quadratic residue diffusers" for a fair range of products to buy. www.rpginc.com has a lot of info.

Not quite sure what the guy whose system is in the picture thought those diffusers would do in that location!

 

[darrenyeats]

Rear wall diffusors are fine but yeah they are wedged almost behind a massive telly!

I am actually after something for side wall first reflection points. I want something very shallow I can stick on the wall since my room is very narrow to begin with.

I have (somewhat) absorptive 'acoustic wallpaper' already just on side walls to reduce very bad flutter echo - I found unless most/all of the side walls were treated I got nowhere, and diffusion on the whole of the side walls isn't practical for me. But I think the tone could be opened up a bit with side diffusors, I won't know till I try of course.

Has anyone used something like this?
http://www.jocaviacousticpanels.com/uk/products/dif.dynamicflow/index.htm

google "making quadratic residue diffusers".

I realise the first pic I posted is a QRD but now I think about it (sorry Andy) I'm not sure the QRD types will work best on the side wall.