Question / Help Buzzing sound

[WNxArcthuruswow]

I have recently, after listening to my VODs, noticed that there is a very annoying, ininterrupt buzzing sound. I tried my best but just can't get rid of it. Checked all settings, tried everything ( I think). I use a headset instead of a separated mic + headphone. I have him for some months. I am personally not looking to buy another one. Any help would be appreciated.

https://gist.github.com/08ec2741ac46caa7da10