u/PepsiButItsMilk

I’d say about a year ago I purchased a pair of AirPods 4 with Active Noise Cancellation from my college book store, brand new in box. As of yesterday, they make this very strange noise in the left ear. I’ve been hearing a “wind sound” for a few days, but it’s now almost like this high pitched repeating/pulsing sci-fi warping sound. I have no clue what to share to help you all understand it. I try to take good care of them, I only use them once or twice a week and cant recall the last time I’ve dropped them. They havent been wet, they’ve been cleaned, and I’m at a loss. Anyone know what this is, and if it can be repaired or if it needs a replacement?