A utility for mapping polyphonic CV signals into the right curve, with controls to switch between BIpolar (pass-through) and ABSolute (rectify negative values to positive), and between LINear (pass-through) and EXPonential (turn a straight line into a curve, or a curve into an even curvier curve).

In the mid-section you can set the centre of the signal and adjust its amplitude. Values are clamped to the range -5v to +5v.

One use case in the Janus system is mapping a FAN output from Janus KEY, which ranges from -5v to +5v across the span of each stack of notes, into a symmetrical curve which is +5v at both ends and 0v in the middle. This is useful if the same FAN output is used to control stereo spread, and we want symmetrical behaviour at the edges of the stereo spectrum rather than the bias you would get if the linear FAN were being mapped into VCF cutoff or something else that affected signal amplitude.