On December 24, 2016 4:50:58 PM EST, John R Pierce <pierce at hogranch.com> wrote: >On 12/24/2016 1:43 PM, H wrote: >> Has anyone come across a device that could cancel out the noise from >servers, ie. the fan noise? I have a server rack near my office and >would like to see if i can decrease the noise level. It would seem to >me that the steady drone of the fans could be cancelled out to a large >extent. > >thats really hard to do because the noise source is diffused, and >reaches your ears via multiple paths, plus your ears aren't at a fixed >location. > >Its easier to move the servers to somewhere you won't hear them, like a > >server closet that you can soundproof and add forced ventilation to. >or wear earplugs. > > > >-- >john r pierce, recycling bits in santa cruz > >_______________________________________________ >CentOS mailing list >CentOS at centos.org >https://lists.centos.org/mailman/listinfo/centos Interesting. In my case i wanted to decrease the amount of noise escaping through an open door (which can not be closed.) After reading the various comments i think I might search for acoustic blankets for musicians.