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Where's your Node? Multi-Ef­fects Plugins
Old 17th December 2010
  #1
Where's your Node?

at the mixing position? mine's 63hz...

gonna suspend/float a 3/4 inch plywood 4x8 on the ceiling above desk and put 2 inches of rigid fiberglass on either side..

better than trying to do a 4x8 piece of 7 inch centered bowed masonite on a wall in a room my size..other than that, doing sweeps the room is smooth
Old 17th December 2010
  #2
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StratSvante's Avatar
 

123 hz which is up about 16 db, awesome!
Old 17th December 2010
  #3
i'm speaking of the null!
Old 17th December 2010
  #4
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Ethan Winer's Avatar
 

Quote:
Originally Posted by Sigma View Post
gonna suspend/float a 3/4 inch plywood 4x8 on the ceiling above desk and put 2 inches of rigid fiberglass on either side.
It's tough to imagine that will do anything useful, but I'll be interested to see some Before / After waterfalls.

--Ethan

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The Acoustic Treatment Experts
Old 17th December 2010
  #5
Quote:
Originally Posted by Ethan Winer View Post
It's tough to imagine that will do anything useful, but I'll be interested to see some Before / After waterfalls.

--Ethan

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The Acoustic Treatment Experts
nick colleran , my buddy at acoustics first thinks if a heavy enough mass is floated and there is 4 inches of absorbstion it should do the trick although he rcommended off the top of his head to bow a piece of 4x8 masonite 7 inches at center and stuff with fiberglass against a wall first ..when i said i didn't have the room he said to try the floating mass thing

i don't have room for barrel traps

i have 4 6 foot 1/2 rounds and two 4x8 2 inch absorbers on the front wall and a 1 inch 4x 6 currently over the mix position

i used painted ceiling diffusers on the rear to save space..the room is coated in sound channel acoustic fabic and exept for the node ..sounds great

ps is 14.5 x 11.5 ...6 sides and has heavy drapes hiding french doors that are kept cracked which opens up to a 14x 16 room..that's how i can get low bottom out of what appears to be a small room

if it weren't for the ocassional rap song with that 60 area 808..i wouldn't mind..the node in Sigma A room was 80 hz..i'm glad mine is lower..

i alway voiced the room because the kids would come in and try to boost 80 which did nothing but comb filter the adjacent freq
Old 17th December 2010
  #6
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StratSvante's Avatar
 

Oh sry, just wanted to share!
Old 17th December 2010
  #7
Gear Guru
 
Ethan Winer's Avatar
 

Quote:
Originally Posted by Sigma View Post
nick colleran , my buddy at acoustics first thinks if a heavy enough mass is floated and there is 4 inches of absorbstion it should do the trick
I can't understand by what principle that would absorb the wave causing the null, but I guess anything is possible. If you do measure Before / After, it's imperative that the microphone been the same place within an inch for both tests. You can verify the need for that by measuring the response in a few nearby places at the mix position before you hang the panel. In a larger room the position may not be so critical, but it's still important. If moving the microphone improves the null depth a few dB you might conclude it was from adding the panel.

--Ethan

________________
The Acoustic Treatment Experts
Old 17th December 2010
  #8
Quote:
Originally Posted by Ethan Winer View Post
I can't understand by what principle that would absorb the wave causing the null, but I guess anything is possible. If you do measure Before / After, it's imperative that the microphone been the same place within an inch for both tests. You can verify the need for that by measuring the response in a few nearby places at the mix position before you hang the panel. In a larger room the position may not be so critical, but it's still important. If moving the microphone improves the null depth a few dB you might conclude it was from adding the panel.

--Ethan

________________
The Acoustic Treatment Experts
yeah i'm waiting till after the holidays... he said it's the weight of a heavy mass that is floating..he said i can't hard affix it..and the absorbers..

i'm interested to see too..should only be a coupla hundred bucks to buy materials
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