filter bank spectrometer
a spectrum visualization
this spectrometer uses no fft but a filter bank instead. it is not as accurate or analytical but there are some advantages of this method. movements look smoother, the bass resolution is better and there is almost no latency.
some tweaks and a kind of calibration done.
optional grid, a filter q control.
no more gaps when used with fewer bands
optional slower 2nd layer, upscaled version in the b view