The Spectral Suite is a collection of audio plugins that utilise the FFT algorithm to manipulate the spectral components of the input audio. The latest version can be downloaded from here.
This plugin will scramble the frequency components of a signal at a provided range and rate.
Only allow frequency components above or below a particular cut-off amplitude.
Frequency content will gradually shift towards being centered on one frequency.
Sinusoidal Shaped Filter
Filters the frequency components according by applying a sinusoudal shape over the spectrum.