Hi all. A quick post here on diffusion. I am designing a single control room playing electronic music, maybe some vocals. The size of my room is 3850 long x 2800 wide x 2400 high (not big I know, but space dictates and calculated using Sepmeyer). I think I have covered all the bass trapping in corners, 1st reflection points, clouds etc but is the room of sufficient size to have rear wall diffusion or should I just stick with absorption? Thank you.
Diffusion
Originally posted at johnlsayers.com, topic 10912.
Stick with absorption.
Andre
Hey, a reply from one of the main men; I thank you kind sir and shall heed your advice. :)Stick with absorption. Andre
At what point does it become beneficial to begin incorporating diffusion on the back wall. Does it depend on length or volume of room? Also, with small rooms, is it inadvisable to have the side walls treated to be angled and diffusive? Angled slat absorber designs seem that they would have some benefit even for narrow rooms. At what width/volume should these also be traded for strictly absorbtive sides?
I ask because it looks like I may be in my current room for a while longer than anticipated and I was looking to try to treat it in the meantime. The dimensions of the room I'm in now are 100"H x 126"W 136"D. Do surface materials matter? It seems uncommon now, but my interior walls and ceiling are all lathe and plaster and the floor is the painted subfloor(?) (1x3's running the length of the house).
10 feet between the rear wall and the listening position.At what point does it become beneficial to begin incorporating diffusion on the back wall.
Yes to both.Does it depend on length or volume of room?
Yes. the small room is to small for splaying to to help redirect initial reflections in the first 15 milliseconds. Diffusion will only help on higher frequencies, not full range.Also, with small rooms, is it inadvisable to have the side walls treated to be angled and diffusive?
Yes. Do reverb time calculations and use the EBU/ITU spec for reverb time design criteria. AndreAngled slat absorber designs seem that they would have some benefit even for narrow rooms. At what width/volume should these also be traded for strictly absorbtive sides?When the 15 millisecond/ 10 dB down criteria can be achieved with splaying and diffusion.Use absorption only. The room is too small for diffusion and reflection redirecting to be of value.The dimensions of the room I'm in now are 100"H x 126"W 136"D.Do surface materials matter? It seems uncommon now, but my interior walls and ceiling are all lathe and plaster and the floor is the painted subfloor(?) (1x3's running the length of the house).