Waveshaping synthesis changes an original waveform by responding to its amplitude in a non-linear fashion.
DSF synthesis refers to algorithmic synthesis methods which use mathematical formulas to sum, or add together, many numbers to achieve a desired wave shape.
[10] DSF allows the synthesis of harmonic and inharmonic, band-limited or unlimited spectra, and can be controlled by an index.
As Roads points out, by reducing digital synthesis of complex spectra to a few parameters, DSF can be much more economical.
[11] Jean-Claude Risset was one notable pioneer in the adoption of distortion methods.