Befaco VC Slew Limiter

Voltage-controlled glide with shapeable curves

6 HP Eurorack module

The VC Slew Limiter by Befaco is a voltage-controlled slew limiter that smooths transitions between voltages with independently controllable rise and fall times. It is musical in character as a portamento generator, envelope follower, and lag processor, with a Shape control that morphs the slew curve from linear to logarithmic/exponential, adding expressive tonal variation to any CV or audio signal passed through it.

Features

• Independent voltage-controlled rise and fall times via dedicated fader pots and CV inputs
• Shape control morphs slew curve character
• TL074 op-amp based signal processing
• Ferrite bead power filtering on both rails
• 4 minijack patch points: IN, OUT, RISE CV, FALL CV
• NP (non-polarized) capacitor for audio-range slew applications
• Separate rise and fall CV inputs for dynamic real-time control
• Fader-style pots for Rise and Fall time for tactile feel

Controls & Jacks (12)

• Fall CV— Control voltage input for fall time modulation
• Out— Slew-limited output signal
• Rise Time— Controls the slew rate for rising edge transitions
• RISING
• Rise CV— Control voltage input for rise time modulation
• Shape— Adjusts the curve shape of the slew limiter response
• In— Main audio or CV input to be slew limited
• Fall Time— Controls the slew rate for falling edge transitions
• RANGE
• F
• RISE— Control voltage input for rise time modulation
• FALL— Control voltage input for fall time modulation

How-To Guides

• Classic Portamento on a Synth Voice
• Voltage-Controlled Portamento Speed
• Envelope Follower from Audio
• Legato Bass Glide
• LFO Waveshaper and Smoother
• Sample and Hold Smoothing
• Trigger-Synced Decay Control
• Theremin-Style Pitch Glide

Explore the interactive VC Slew Limiter panel on BleepDex — tap any control to learn what it does.