I did this for several months before coming up with this reliable setup. Years ago I stayed up many nights researching and struggling through trial and error. You’ll notice all 3 of these are probably covered somewhere out there on the world wide web surely these things have been done before.
Basic use of sound capture and analyzer software.Amplifying and fine tuning an electrical signal.All you need is another $35 or so worth of parts, possibly less if you already have some of it laying around. If you already have a PC running windows you are 90 percent of the way there. Here it is, a CHEAP analyzer you can build yourself.
