You are talking about your PC I presume.
A few months ago mine (Asus) developed a hum which got worse & worse until it was all there was & I couldn't use sound at all. I tried everything - new audio driver etc. The fault was in the PC which might have be repairable but it was 10 years old & not worth it so I had to get a new PC.
That is easy enough, but the snag is the bother of transferring everything from one to the other, which I did with the help of a techie friend & all is now well.
I hope you can find an easier solution though.