You can also use Xfer Serum alternatively to edit the waveform by adjusting frequencies on an additive graph, or process/generate it using preset functions and mathematical formula Xfer Serum 1.2.1b9 is the latest version of the most advanced Wavetable Synthesizer editor software (VST) that is simple to be a ‘dream synth’, which in this case translates to a wavetable synthesizer producing high-quality sound from a workflow-oriented interface. Serum VST includes a wavetable editor which enables you to manipulate the waveform on a graph display using an assortment of tools that vaguely remind us of the Performer in NI Massive, although with very different results, of course.