Sinewave multiplied by and sync'ed to a carrier.
Original code by E. Gillet. Revisted by Ben Sergentanis for the DaisySP DSP library. Ported to SuperCollider by Mads Kjeldgaard.
Set carrier frequency in herz.
Set formant oscillator frequency in herz.
Adjust contour of waveform. 0.0 to 1.0.
Set the offset amound and phase shift. < 1/3 is just phaseshaft and above 2/3 is just offset, between them is both. -1.0 to 1.0.