So one of my kids complains about mouth breathers in their class playing super high pitched “mosquito” sounds in class because the teacher can’t hear it but the kids can. So I made a detector. Standalone JS. PWA for offline. Works on phones or pcs, zero tracking and MIT open.

http://drewmayo.com/buzzoff

Yes, I used AI. I have written my share of FFTs in embedded C but I draw the line at JavaScript.