When i’m just randomly sitting around only in the U.S. (been traveling some lately)… I hear this background noise that is really hard to describe, like a very soft ringing/buzzing. No idea if this is my mind playing with me or what, but it happens a good amt and I don’t really even notice it until I focus on it. Any1 else ever heard this ‘background noise’?
There is a good chance this is 60 cycle hum, noise produced by alternating current electricity. (60 cycles per second in the U.S.) It is usually present inside buildings but how noticeable it is depends on ambient noise, type of lighting used, and other mundane factors. Florescent lights are the worst offenders.
Usually this fades into background noise but since you noticed it you have started to become conscious of it. So you could say that your perception has improved and you are seeing (hearing at least) the world more clearly.
What else in your environment is always there without being noticed?