Constant Buzzing

Hey all,

I have a terrible buzzing in my audio, is there any way to remove it? I’ve attached a sample. I’ve looked over the internet and I just can’t work out how to get rid of it.

Thanks in advance.

Plenty of hiss, but no buzz on that.
Can reduce the hiss with Noise Reduction, but it will add digital-artefacts …

Ok, thank you.