Harmonix

With this plugin you can generate smooth anti-aliassed harmonic frequency waveforms which may consist of up to 10 harmonic frequencies. Frequency, amplitude (scale), phase (offset or bias) of the harmonic waves can all be changed as well as the width of the anti-aliassed line. The waveform is previewed with a high degree of accuracy so you'll know what to expect. The configuration can be stored for later use.