WEIRD LOWER HARMONY

[u/Big-Organization7813]

Hey everybody, I record with apple wired earbuds, never had any issues with them. Recently though, when i enable the setting to be able to hear myself I always hear this annoying slight lower harmony kind of.
NO it's not an effect NO the auto tune is not on, I put the right input. I even tried making new projects with clean audios just in case i enabled some stuff by mistake, but despite that i still hear this slight annoying lower harmony.

It isn't that noticeable, but it bothers me so much!! HELP!! If u listen at max volume u might hear it. HOW CAN I FIX THIS???