About
A module that's initially intednded to be a quick and easy modulation source and processor, but goes way beyound just that, the Lag Processors + Comparators design has two VC direction-insensitive lag processors and two small hysteresis comparators.
The lag processor's (or slew limiter's) job is to process an input signal so that the output is a smoothed out, 'inertial' version of the input signal. This is useful if you want to add glide to your CV sequence, shape a trapezoid out of a squarewave LFO, or even smoothly filter out audio. The secondary function of the lag is to be an oscillator: with a flick of a switch, the LOOP output gets summed up with the IN jack, and the module starts oscillating, as long as the input is in the range of about +-1.5 volts. Otherwise, the oscillation gets overridden by the input signal. When cycling, the lag processor produces a high-amplitude squarewave at the LOOP output and a 10Vpp triangle at the OUT output. Both lag processors have a SPEED control, which determine the lag/oscillation speed, and two CV inputs over it: one attenuated, one attenuverted. It's possible to drive the lag speed above the SPEED knob highest settings with an external CV, but not lower than the lowest setting.
Below the dual lag processor are the two comparators. The output indicates with a bipolar high-amplitude logic signal (+12 = 1, -12 = 0) if the voltage on the upper input jack is more (1) or less (0) than the sum of the voltages of the knob and the lower input jack. The comparator has a small, but existent hystersis, and won't jitter if the inputs are exactly the same. Not that useful on its own, this section really shines in complex patches as an 'event detector', or even in simpler application, such as a PWM pulse shaper for a triangle's sawtooth output, a gate amplifier/inverter, and so on. The knob works like a -12..+12v offset, but starts being a -3...3v offset if something is patched to the input jack Y (N).
