this is for the devart project. this is 20 minutes of notes I found on the radio that sound like “A”. I built software that scans 1000 or so radio stations for a minute each, this is about 1/6th of the “A” samples I’ve found. I strung them all together, it’s interesting to see how the line up but also deviate.
here’s a quick sin wave of A to get a sense of the tone I was scanning for: