Boundary Layer Triple Cycling Slope Generator

Schlappi Engineering Boundary Layer

Boundary Layer is a triple cycling slew generator by Schalppi Engineering that can nestle neatly in any crevice of your modular system. If you're familiar with slope generators, then you know the deal: Rise, Fall and a shape CV knob for adjusting the slope. A three-way switch next to each CV knob lets you choose between the Rise, Fall or both. Each channel features a CV output and end-of-cycle (EOC) gate output with a Min, Mid, and Max set of logic outputs that takes all channels into account.

Designed to be used for several different applications, the inputs for each channel echo this: use the Trig input to use it as an envelope/slope generator, use the Slew input for adding portamento or creating AR envelopes or even pass audio into this jack for filter, and finally the Bound input changes the maximum voltage range while in Cycling mode, allowing for gated behavior and AM/FM sounds. Each channel has three sets of switches for Cycling mode (no trigger necessary), CV Invert when CV is patched or exponential/logarithmic switch when nothing is patched, and a three-way switch for dictating the behavior of the CV knob. The Boundary Layer from Schlappi is a fantastic take on a classic multi-function module.

Boundary Layer Features

• 3-channel cycling slew generator with Rise, Fall, and Shape CV control
• Individual Cycling, CV Invert/Expo-Log, and CV Mode switches per channel
• Min, Mid, and Max logic outputs derived from all channels
• Trigger, Slew, and Bound inputs
• End-of-Cycle (EOC) gate outputs on all channels
• Audio-rate capable for filtering or AM/FM applications
• Range control via Bound input during Cycling