Krets for free by Klevgränd
KRETS is a modular environment that can be used in any DAW compatible with the AudioUnit or VST format.
The application is based on a set of modules that can be connected in different ways, where focus is on low level audio DSP processing. There are (almost) no ready-made effects to hook into an audio stream, the purpose is for the user to create these more or less from scratch.
By combining mathematical expressions and functions (available as modules) a plethora of audio effects can be created, anything from a compression algorithm to generative soundscapes.