I have a small hard drive that is making a constant high pitched sound that is typical of the drive, and not very noticeable to the average person, but I have pain induced noise sensitivity. I am curious about how to calculate damping potential. As an initial guestimate, the frequency is very near to my maximum audible range and likely around 12kHz-16kHz. It is a little higher than the switch mode power supplies that I can also hear if it is dead silent in the room, although the drive is a higher amplitude. Addressing the noise with a solution is probably beyond the scope of anything I would actually do, but knowing how to solve it is far more interesting to me. (ELI15 )
Given that they’re both coming from the same laptop, I’m not so sure.
With low frequencies, where it is hard to locate the source of the sound anyways, it works well, even without carefully arranging the distances, higher frequencies get trickier and you’ll likely get good cancellation in some places and a terrible mushy noise in others.