The Musician Forums > Music Technology & Pro Audio
DIY Acoustics and Soundproofing Thread
franee:
Hi mga master,
I'm currently in the planning stages of building a rehearsal studio. Later we would be upgrading it to become a recording studio as well.
I'm aiming for at least 60 STC. I'm thinking of doing a double concrete wall (M-A-M system).
My current dilemna is I don't see any literature about the STC rating of this kind of system.
It's kinda like this:
6in CHB -- .9m air gap (hallway) -- 2in structure gap -- 6in CHB -- 2 layers of gypsum board
Questions:
1. How much STC rating would this system have?
2. Do you think the inner CHB wall is overkill?
3. Is having a 1/4/hardiflex + steel stud with rockwool + 2 layers of gypsum board more practical/better than having the inner CHB?
4. Which is more expensive? #2 or #3?
Hope you can help me out guys :D
Thanks!
El Mariachi:
Help po mga masters and gurus! I've been planning this for a long time, hingi po sana ako suggestions regarding sa balak kong studio for rent (rehearsals, recording, etc.).. Ang problema ko is how to soundproof it considering na katabi ng kwarto eh law firm at sa taas naman ay Spa! :-o , Sana matulungan niyo ako! I'm not renting by the way, ako ung Lessor.. :-D gusto ko lang ma-pursue recording studio business ko.. dream come true sa tutuusin. :-D
Details:
- All sides/corners are concrete
- Roof or ceiling is plywood
- Floor is tiled with vinyl (wood design)
- Window type a/c already installed
Layout:
johnxm:
ask ko lang po, yun po bang heat insulator pwede ring gamitin as soundproofing or sound dampening?
Nelson de Leon:
--- Quote from: franee on September 25, 2014, 09:31:51 PM ---Hi mga master,
I'm currently in the planning stages of building a rehearsal studio. Later we would be upgrading it to become a recording studio as well.
I'm aiming for at least 60 STC. I'm thinking of doing a double concrete wall (M-A-M system).
My current dilemna is I don't see any literature about the STC rating of this kind of system.
It's kinda like this:
6in CHB -- .9m air gap (hallway) -- 2in structure gap -- 6in CHB -- 2 layers of gypsum board
Questions:
1. How much STC rating would this system have?
2. Do you think the inner CHB wall is overkill?
3. Is having a 1/4/hardiflex + steel stud with rockwool + 2 layers of gypsum board more practical/better than having the inner CHB?
4. Which is more expensive? #2 or #3?
Hope you can help me out guys :D
Thanks!
--- End quote ---
Ang STC sir AFAIK is supposedly measured para malaman mo ang rating ng room mo. Inner CHB is not overkill. May mga iba, buhos pa nga ang ginagamit para mass loading talaga.
If you want something better than hardiflex, try MDF.
--- Quote from: El Mariachi on October 10, 2014, 11:13:30 PM ---Help po mga masters and gurus! I've been planning this for a long time, hingi po sana ako suggestions regarding sa balak kong studio for rent (rehearsals, recording, etc.).. Ang problema ko is how to soundproof it considering na katabi ng kwarto eh law firm at sa taas naman ay Spa! :-o , Sana matulungan niyo ako! I'm not renting by the way, ako ung Lessor.. :-D gusto ko lang ma-pursue recording studio business ko.. dream come true sa tutuusin. :-D
Details:
- All sides/corners are concrete
- Roof or ceiling is plywood
- Floor is tiled with vinyl (wood design)
- Window type a/c already installed
Layout:
--- End quote ---
Basically tahimik naman ang law office and spa. Double walling talaga if you want serious soundproofing. But from the way you describe your room, observe mo muna kung saan at gaano kalakas ang unwanted noise, kung meron.
mikep:
STC is sound transmission class - the ability of, say, a wall or roof to stop sound from "seeping" through. The number is equivalent to a dB figure. Thus, if there is sound coming from the other side of the room and it is measured to have a 100 dB intensity, and your walls have an STC of 60, the resultant "seepage" would be about 40 dBA which is almost inaudible. Maybe you are confusing STC with NC or Noise Criterion. NC is the measured result on how quiet the room is, with the air con, etc. on. For recording studios, an NC30 is acceptable, but the better ones should have an NC 20 or maybe 25. The lower the STC number, the better the noise or ambient performance - meaning, quieter. A single layer of CHB 6 inches, filled, plastered and all side connections totally caulked and sealed, would give you an STC of 45 to 50. A 6 inch CHB wall with a .90 meter air gap, then another CHB wall 6 inches, will give you a very high STC. But you have to do this on all 4 walls, ceiling and flooring to achieve the very, very high STC rating (would you have the real estate space?). Your problem also is the weight of CHB. If you are on the ground floor, it is fine. But if you are on the second floor, you have to consult your Structural Engineer if putting heavy CHB walls is acceptable to the weight load capacity of the building.
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