Little Endian released SpectrumWorx 2.5 and added 2 new effects: freeze and convoler.
You can get a free limited version of SpectrumWorx if you purchase a computer music magazine.
“…the ultimate sound mangler – a very special kind of audio effect you probably haven’t experienced before! Read on…
SpectrumWorx is a modular effect processor that works exclusively in the frequency domain. Two things make SpectrumWorx vastly different from other effects processors: its ability to manipulate the frequency domain and its modularity.”
More info here: http://www.http://www.littleendian.com/overview/.com/overview/