sounds in client are buggy

In the client whenever you hover over something usually it makes a short half a second sound, and this is totally fine, but I find that very often in my client (not in game) there is a strange crackling noise that continues to play after the initial sound. It is very quiet but it is noticeable. Turning the master volume down to zero does resolve the issue, but I miss my sound in the client! I have tried repairing the client but I am still experiencing the problem. Let me know if anyone has a fix!