This is a proof of concept that it's possible to create spectrogram with Reaktor 5 using Multi Display.
I must admit it was quite a challenge, because of Multi Display slowness :)
v1.2 Proper mathematics behind converting amplitude to dBFS and mapping dBFS to color
v1.1 Improved coloring
v1.0 Initial release
Plans for further development:
- better resolution
- scrolling improvements