Background clicking and slight hum.

[ceeceebee]

Hello, have recently (4 weeks) started to experience this problem. What I can say is it is present, even when I am not connected to the internet and seems to load on startup, Windows Vista Basic. Shows up on my WMA & mp3 files. I have an old Audio Cleaning Lab program for converting records and sound files, and even when nothing is playing shows a background noise, which I can filter out on the recording option, but it's always there. Have unplugged the phones, no difference.. Scans for virus, etc (Malwarebytes, Micro.Sec.Center, Spybot, CCleaner all show clear ) but suspect have something unhealthy playing with me. BTW, no neighbours, nearby. Really bugging me, any suggestions appreciated... Colin..

 

[soundguruman]

does it go away when the internet wire, cable TV wire is (completely) disconnected from the system?
Do you have cable internet?
If so, you may need a cable ground loop isolation transformer...