If your walls are bleeding noise from the computer rack room to an adjoining room through a common wall, simply hang a set of sound barrier curtains against the wall to isolate the noise and combat the bleed to the adjoining space. See QBS Blankets.
If your computer rack shares the same room with workers, take the same sound barrier curtains and free stand them out infront of the rack to block directional noise and protect the worker’s environment. In this case, add sound foam panels to the back wall behind the rack to further mitigate echo.
For more questions on solving your computer rack noise, contact NetWell Noise Control at 1-800-638-9355 or visit us online at www.controlnoise.com