Things about Sound vizualisation

Finally giving a backdrop to my node performers. Like the idea to use the sound produced by their sole movement and that they do not need humans  to have those drawings on the wall.  As if now they have their body character, they need to communicate with it.

Need to calibrate the drawings should allow to see the distinction between frequencies of human  and non human voices.  Allow the shadows and node silhouettes to appear along with the drawings .

Learning with https://www.unicornsfartpixels.com/posts/2017-10-25audio-fft/ and https://www.openprocessing.org/sketch/446310 with Alexander Quadratov