N-Wave: Middle-Out Waveshaper (10HP)

N-Wave is a novel waveshaper for the Eurorack modular format. Unlike traditional wavefolders and clippers, which operate on the peaks of a waveform, N-Wave leaves peaks intact. All you need to expand your sound palette greatly is a VCO signal and a few twists of the knobs!

Using its internal bipolar VCA (aka four quadrant multiplier, aaka ring modulator) you can apply gain reduction and polarity inversion to an inner portion of the wave slope that you define with the THRESHOLD and OFFSET controls.

All functions can also be controlled via control voltage inputs. LFOs, Audio Rate VCOs, ADSR Envelopes, 1V/Oct signals, sequenced voltages, sample and hold signals, noise, and sub octave signals are all very good choices and can produce results ranging from very musical to very strange. An external detector signal can also be applied if you don't want to trigger the detector on the waveform you're modifying.

If you like, you can also use N-Wave as a high quality bipolar VCA, attenuverter, or ring modulator with the THRESHOLD set to maximum and dynamically mute the effect by applying 0V or a negative voltage to the threshold either using a sequencer or manual control, which allows for hocketing and rhythmic effects.

N-Wave can also operate all the way down to 0hz (DC), so, in addition to audio, it can process LFOs, envelopes, 1V/octave sequences, and any other signal that varies amplitude over time (Sorry, square waves and pulse waves. Your super-sonic rise times are hard to shape in an audible way, but you do work well as control signals). 

N-Wave is 10HP and uses Burr Brown op amps for the primary signal path alongside high quality Texas Instruments ICs that are carefully chosen to best fit their roles in the circuit.