"Seeing" sound waves & capturing frequency with "real time" FFT (ha!) using Microsoft Tech.

Greetings all, hope you are well.

Here's a quick view of "seeing" sound waves generated by a speaker with an input from a signal generator (Espotek Labrador - link below). This is possible with Excel Data Streamer. Now we can run a near real time FFT in excel and capture the corresponding frequency. Truly the beginnings of a rudimentary oscilloscope!