David_Rivshin
Second Unit
- Joined
- Dec 13, 2001
- Messages
- 350
I've re-read alot of the old threads on DIY room treatments, but there seemed to be alot of conjecture and conflicting thoughts. So I thought I'd give some information on the problem I'm trying to solve at the moment, and hope that those more familiar with the theory can give me some advice.
My basic goal is to reduce some background noise which is generated by my computers. The living room in my apartment is directly attached to a "dinning area", which I use instead as my office. My computers are on the floor the far corner, with no table above but a hard surface on 3 sides, and 2 feet in front. My guesstimate is that they generate around 50dB of noise at a distance of about 1 foot. I did some frequency analysis of the noise, and found it to be between 30 and 500Hz, with some spikes at a few specific frequencies, which depend on exactly what equipment I have on at the time.
So, I what I would like to do is build some inexpensive panels to place in that corner with high absorbtion in the 30-500Hz range. Target size is about 1 foot tall, 3 feet along one wall, and 2 feet along the other. I'd like to keep depth below 4 inches if possible, as space is tight.
Some thoughts I had from info in previous threads:
1) rigid fiberglass insulation faced with pollyfill
2) regular fiberglass insulation faced with pollyfill
3) 1 or more layers of eggcrate foam with pollyfill
4) a couple of these: http://www.partsexpress.com/pe/showd...number=300-895
Any other ideas and/or evaluation of what materials would be best would be greatly appreciated.
Thanks,
-- Dave
My basic goal is to reduce some background noise which is generated by my computers. The living room in my apartment is directly attached to a "dinning area", which I use instead as my office. My computers are on the floor the far corner, with no table above but a hard surface on 3 sides, and 2 feet in front. My guesstimate is that they generate around 50dB of noise at a distance of about 1 foot. I did some frequency analysis of the noise, and found it to be between 30 and 500Hz, with some spikes at a few specific frequencies, which depend on exactly what equipment I have on at the time.
So, I what I would like to do is build some inexpensive panels to place in that corner with high absorbtion in the 30-500Hz range. Target size is about 1 foot tall, 3 feet along one wall, and 2 feet along the other. I'd like to keep depth below 4 inches if possible, as space is tight.
Some thoughts I had from info in previous threads:
1) rigid fiberglass insulation faced with pollyfill
2) regular fiberglass insulation faced with pollyfill
3) 1 or more layers of eggcrate foam with pollyfill
4) a couple of these: http://www.partsexpress.com/pe/showd...number=300-895
Any other ideas and/or evaluation of what materials would be best would be greatly appreciated.
Thanks,
-- Dave