Music or AM radio or plain static. Louder the better hah.
It doesn’t work that way for me. The sound just gets more intense with loud or prolonged music. It’s worse at night and when waking up. Standing make it a little quieter. I have partial hearing loss in one ear with certain frequencies, but the tinnitus affects everything — surround sound. It went away for a while, and then it came back. Why? I don’t think I’ll ever know.