Spectral Lemuring
Spectral Lemuring is, as the name implies, a spectral processing effect which is inspired by a discontinued freeware plugin with a similar name.
The feature set isn’t exactly the same, but like the plugin that inspired it, it can process the high-magnitude and low-magnitude parts of the FFT signal separately, and can also “freeze” the signal.
Put simply, it’s a lo-fi pitch shifter with some extra functionality.
Note that I have no affiliation with Shiny FX (the developer of Spectral Monkeyage), and this is only inspired by the namesake, not intended to be a direct remake or anything.