Hello all so im new to audio equipment and all that and don't know much. So recently i have been having problems with my microphone audio and having a buzzing noise in the background of my audio. I have a shure sm7b, m-audio m-track 2x2, and a dbx 286s. When i bought this stuff back in late 2018, it was working fine, but now the buzzing noise is starting to happen and i dont know how to fix it. Can someone help me out to whether sell my whole setup and go buy like a modmic or just buy a new audio interface or something?