Try checking all your cables are firmly in place or swapping them with another cable to see if the problem still continues. It could be room background noise, an electrical problem or a problem with your cables. There could be many reasons why your microphone is producing unwanted noise. How to Stop Your Condenser Microphone From Buzzing? This isn’t ideal if you want to have great sounding audio. The buzzing, hissing or humming sounds may even be more noticeable once you start adding EQ, compression and other audio effects. Sometimes there’s an underlying problem that needs to be solved. Sometimes it can be very noticeable where other times it can be very subtle. Is your microphone producing a buzzing, hissing or humming noise? Actually all microphones will make some form of self-noise.