Swingman wrote:
On 2/2/2015 2:10 AM, Bill wrote:
Is there something I might glue inside to help absorb fan sounds? Other

DAGS "Sonex". Not guessing, first hand experience with the product in
using it to absorb sound and reflections. I used it a lot in the
studio business:

https://picasaweb.google.com/1113554...99270191728 2


thoughts? Will its size affect how well it will block sounds?

I put some pics on my web pages showing where I am now. I like to try to
entertain everyone who is kind enough to try to help me, and it gave me
an excuse to experiment and further configure my computer, camera, etc.

BTW, I have learned that I can **no longer** trust or recommend
sourceforge.org as a great source of "malware free" software (ccleaner,
pdfcreator, and filezilla, for instance). It's gotten so they are
either sneaky about trying to get extra software on your computer, or
worse. They have a new "partner" called slashdot (or similar). I tried
a new (to me) ftp program called WinSCP, which I found even easier to
use than filezilla. It has its own web page.

Here is a link to my 2 photos (I'll take it down in a few days):
http://web.newsguy.com/MySite/fan.htm


With an added cardboard box in front of the computer, it works even
better. I'd say I'm at about 20% (noise-level) of where I was. That's
using my scale, not DBa. And the most-annoying high-frequencies are
mostly gone. All I have to do it step to the other side of the "new
wall" to remind me of why I put it there. I'm planning to pick up some
strofoam to replace the cardboard box--they have it readily available at
Menards--my BOG. Unless I try something else. I'm not ready for a $250
solution (e.g. Sonex) quite yet. But it's nice to be aware of such
things. I'm sure I'll keep thinking about optimizing my set-up. I was
very fortunate that my piece of plywood fit, with 3/4" room to spare at
the ceiling! If you think it would help if I added something to the
wall or the "styrofoam" that will go in front of the PC, don't hesitate
to mention it. You may note that I shoved in rolled-up towels the
vertical length. The real source of the noise is the front and rear
fans. I know that because when the radiator fans go on, you can't even
tell, by listening.

Cheers,
Bill



Generally speaking, the thicker the material the more sound absorption
at the frequencies you are most likely dealing with.

A combination of distance, intervening walls/partitions, and sound
absorbing materials can be balanced to help you reduce the noise
fairly cheaply.

Other things I routinely do for clients, is do put the computer
enclosure in a cabinet, with a sliding shelf/tray, a "flipper door",
and with plenty of ventilation, either at the bakc, or where the vent
will be directed under the desk.