What is this tiny but amazingly loud bug?

Seriously, this thing was WAY louder than any bug I’ve ever heard in my life. Like 2/3 as loud as a smoke detector.

I accidentally hit slow motion so how it sounds right at the beginning and then right at the end is normal speed, the entire middle of the video is in slow motion. Did make for a cool oscillating noise though.

This was recorded 12 years ago and I haven’t heard or seen another bug like it. Middle Tennessee.