Acoustic treatment help!

  • Thread starter Thread starter nomadx
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GIK Acoustics said:
Yes, Safe 'n' Sound will work. If you can on at least some of the panels, doubling them up to be 7" thick instead of 3.5" would be better for bass absorption. Safe n Sound is a bit light so, for thinner traps, the Roxul 80 would be a better choice, but for thicker panels, Safe n Sound would be best. (They will both work in either thickness though, just a matter of efficiency)
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Man, I have heard that less dense fiber material is best for thicker panels. But I have never quite heard an explanation as to why? Or maybe it just eluded my small brain. I have heard, that a corner trap is more efficient with a 4" rockwool face straddling the corner, backed with Kraft paper, and filled with fluffy pink stuff.

Do you have any insight about these types of installations Alex? And is the benefit of adding the fluffy and paper back, really worth it in the real world, as far as low end control?

I have great results from the free advice I have received from you and other well 'acoustically' educated members in these forums. I feel I owe you at least a beer or a slab of steak for your gratuitous sharing of knowledge in these forums. Can't thank you enough actually.....
 
GIK Acoustics said:
Yes, Safe 'n' Sound will work. If you can on at least some of the panels, doubling them up to be 7" thick instead of 3.5" would be better for bass absorption. Safe n Sound is a bit light so, for thinner traps, the Roxul 80 would be a better choice, but for thicker panels, Safe n Sound would be best. (They will both work in either thickness though, just a matter of efficiency)
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I really appreciate your guidance, Alex. You seem to be well regarded in the forum and very helpful.

I purchased (24) 4'x2'x3" sheets of the safe n sound. Would it be better to make a flat 7" thick trap to straddle the corners or build a superchunk for them? Also, should I make a couple of the wall traps 6" thick and play with their position in the setup or would it be better to make them all 3" and add a 3" cloud above the mixing position? I know it's hard to know what's best without getting extremely scientific; I'm just trying to get a plan. Thanks.
 
After quite a bit of reading, I've decided to go with superchunks in the three corners. I've got a long wall on my left side and a short one on my right. For this reason, one of the first reflection panels will be free-standing on the right to match the one hanging on the wall to my left. Do I need to provide backing on the free-standing one to mimic a wall?
 
nomadx said:
After quite a bit of reading, I've decided to go with superchunks in the three corners. I've got a long wall on my left side and a short one on my right. For this reason, one of the first reflection panels will be free-standing on the right to match the one hanging on the wall to my left. Do I need to provide backing on the free-standing one to mimic a wall?
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Sorry for not getting back to you sooner. Safe n Sound will work well for superchunks.

You do not need to add a back. You will get some extra low frequency absorption without one.

Hope they turn out good!
 
Thanks a lot, Alex. I was mainly concerned that left and right in the stereo field wouldn't sound the same.
 
nomadx said:
Thanks a lot, Alex. I was mainly concerned that left and right in the stereo field wouldn't sound the same.
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Of course. Stereo information though is only really relevant for higher frequencies since lower frequencies are typically mixed mono in the first place. Symmetric bass absorption isn't as important as symmetric early reflection absorption IMO.
 
Thanks, again. Another question before I get started. How far above my head should a cloud sit?
 
nomadx said:
Thanks, again. Another question before I get started. How far above my head should a cloud sit?
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Again, the further it is from a boundary, the lower in frequency it will absorb. So a good foot off the ceiling would give great results. Its not required though. And it should really relate to the room height, not the height of your head.
 
I have a dilemma. Doing some measuring; how will I put a cloud here? Is there another effective way to deal with the space above me. I'll be scooting away from the wall in front of me a little bit to make room for the chunks; which leads me to my second question... what's the best way to superchunk the corner where the window is setting? Thanks, everyone.
 

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I could fit a cloud here, but I would be hitting my head a lot. Best practice?
 
Can you post the entire layout of your room? I'm going to assume your position isn't the best it could be.
 
Thanks, Alex. I'm sure it's not ideal, but i need to make it the best it can be. What would you do to that crazy ceiling above me?
 
Can you draw a layout with dimensions? Even a hand sketch scanned or MS paint would be fine. Try to mark the height of the room and the two positions that it reaches the min and max.
 
Sorry I was slow in posting; small medical complication.

Here is a better layout of the room. I'm sure a better spot for the mixing desk would be along the 12' wall. I've tried this before and the problem is that I'm on the second floor and the door opens into a vaulted ceiling den that acts as a megaphone into the room. I hear a lot of noise coming from the rest of the house. The end of the room shields me from a lot of that. Thanks for your help.
 

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:facepalm: Sorry, I didn't realize you had already posted your layout! Though the added dimensions do help.

This does look like a tricky area, doesn't seem to be really a good spot at all.

To answer your questions though, the cloud doesn't have to be hung flat. You can hang it with the same angle the ceiling has since you don't have much space above you (at least, not on the left side). I would recommend trapping as much corner area around there as possible! Even the weird angled ceiling to front wall corners!
 
I really appreciate your assistance, Alex. I received my insulation yesterday, so I"ll hopefully get started this weekend. I'll share some pics when I'm finished. Thanks, all.
 
Okay; so I finally finished...at least what I'll do for now. I've attached a couple of pics; mixing desk and the wall directly behind me. Thanks for all of your help. It sounds much better.

I'm about to post my latest song in the mixing clinic if anyone wants to listen. Thanks again!!
 

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