Spectral Extractor   

The spectral extractor is a relatively new addition to SoundHack

It allows for the separation of transient and stable components of a sound by doing an analysis in search of wave forms that change phase at faster (transient) or slower (stable) rates. 

The extractor actually divides the sound up into two sound files, one containing the transient elements of the original and the second containing the stable elements. 

normal example 
the above example was taken from an opera by Philip Glass
spectral example
the transient portion of the extraction