XPS15 Started making a blooping noise

I bought this laptop in October of last year. Everything works, I don't notice any mechanical issues or performance issues, but I'm getting these strange bloopy/popping sounds at random, even when the sound is totally off. It almost sounds like a notification sound from something like a text message on certain platforms, but I don't have anything like that turned on, and the sound is muted. Not sure where it's coming from. But I know that when I have my headphones plugged in, I hear it outside of them. Anyone else experience this?