The No.1 Website for Pro Audio
 All  This Thread  Reviews  Gear Database  Gear for sale     Latest  Trending
L-shaped room - absorber placed in the middle of it...
Old 4 weeks ago
  #1
Gear Head
 
Mark Alpine's Avatar
L-shaped room - absorber placed in the middle of it...

I have a question regarding my L-shaped room.

What kind of benefit (if any) could I expect to see by placing broad-band absorbers (movable that can be tucked away when not in use) in the middle of the room - basically affecting the overall size and shape of the room? Does this at all make sense, or am I better off treating the existing walls to obtain better room acoustics?

Thanks, Mark
Old 4 weeks ago
  #2
Works for me. I use some 6x3 gobos. The smaller part of the “L” is diffused, and the big part is the control room (fully treated). The toughest part for me was gettin symmetric freq response in the room. THAT and low freq control.
Old 4 weeks ago
  #3
Gear Addict
 

Quote:
Originally Posted by Mark Alpine View Post
I have a question regarding my L-shaped room.

What kind of benefit (if any) could I expect to see by placing broad-band absorbers (movable that can be tucked away when not in use) in the middle of the room - basically affecting the overall size and shape of the room? Does this at all make sense, or am I better off treating the existing walls to obtain better room acoustics?

Thanks, Mark
In fact wool (velocity absorber) works best in the middle of a room where particle velocity is maximum.
Panel absorbers, 1/4 lambda, helmholtz are pressure absorbers working best where particle velocity is minimum and pressure is maximum.
Old 4 weeks ago
  #4
Gear Head
 
Mark Alpine's Avatar
Quote:
Originally Posted by bert stoltenborg View Post
In fact wool (velocity absorber) works best in the middle of a room where particle velocity is maximum.
Panel absorbers, 1/4 lambda, helmholtz are pressure absorbers working best where particle velocity is minimum and pressure is maximum.
Would you have a suggestion on how to design these absorbers? What material (gas flow resistivity) and thickness would you go for? If space concerns are of importance, how would you make the trade-off low-GFR-and-thick vs. high-GFR-and-thin? Does it make sense to have these absorbers open-back, or is it more useful to close the back (with a MDF/OSB board) such that the soundwaves are reflected back into the insulation material again?

I realize this is a quite complex problem. Most literature deals with the room itself, and not partitions/dividing it up as I've asked about in this thread.

The idea I have is to add four 70x200x? cm traps (each mounted on wheels, each pair connected using hinges).

Thanks!

Last edited by Mark Alpine; 4 weeks ago at 08:27 AM.. Reason: added idea and rough dimensions.
Old 4 weeks ago
  #5
Gear Addict
 

I would measure the room and then get me enough Rockwool to build a wall with it in the middle of the room. If you don't unpack it you can always return it.
Via the good old trial and error method I would measure until I found out what I need.

Maybe I (and others) would have different advice if we knew the room layout.
Old 4 weeks ago
  #6
Gear Head
 
Mark Alpine's Avatar
Quote:
Originally Posted by bert stoltenborg View Post
I would measure the room and then get me enough Rockwool to build a wall with it in the middle of the room. If you don't unpack it you can always return it.
Via the good old trial and error method I would measure until I found out what I need.

Maybe I (and others) would have different advice if we knew the room layout.
Thanks! Will do. Will report back as my studio build progresses.
Post Reply

Welcome to the Gearslutz Pro Audio Community!

Registration benefits include:
  • The ability to reply to and create new discussions
  • Access to members-only giveaways & competitions
  • Interact with VIP industry experts in our guest Q&As
  • Access to members-only sub forum discussions
  • Access to members-only Chat Room
  • Get INSTANT ACCESS to the world's best private pro audio Classifieds for only USD $20/year
  • Promote your eBay auctions and Reverb.com listings for free
  • Remove this message!
You need an account to post a reply. Create a username and password below and an account will be created and your post entered.


 
 
Slide to join now Processing…
Thread Tools
Search this Thread
Search this Thread:

Advanced Search
Forum Jump
Forum Jump