This is a purely graphical waveshaper. It’s still a DSP module, so there is no need for any conversion between GUI and DSP data.
Although there is the Waveshaper2 or 2B, if you’re not mathematically inclined, or want to allow your plugin users to change the waveshaper’s function then this is by far the easiest solution. It’s very intuitive, you just click on a node (one of the small green squares) and drag it till you get the result you want. You can see below how dragging the nodes changes the output waveform.
You just need to be aware that moving the centre node (0,0) can cause some issues with clicking and unwanted DC offset voltages (for audio you could put a high-pass filter set to about 50Hz cut-off pitch to filter out the DC component), when dealing with LFO’s or modulation envelopes you really do want to avoid moving the 0,0 node.
Another advantage is that as your plug-in users are unable to enter values into the waveshaper, they can’t cause the output to exceed the default +/- 5 Volts for Audio voltages.
The best way to learn this module is to connect it up and try dragging the nodes to see what the result is.
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