More weird noises nov 7 2019

This is a new camera that i bought. I'm not sure what happened here. The lenz cap is still on during the recording. I'm still learning to use my camera. there was a couple of dark movies because the cap was on. So I was like whats this and I was watching them and deleting them and I heard this. Does it sound like a Hi to you? I really don't know what this is. my file info says nov 7 2019 10.20 am.
Oct 11 2021. The reason I bought this camera is because I was hoping that if it wasn't hooked up to the interenet or anything that nothing weird would happen. I believe it was a nikon 3500 if I remember right. I recently tossed it cause I got tired of trying to see and film things through a smashed. Lenz. Courtesy of american airlines cause I left it in my luggage. The first and last time I ever flew with them.