Slew

What Is Slew?

A slew limiter (or glide, or portamento) smooths out abrupt voltage changes over time. Instead of instantly jumping between values, the signal ramps up or down at a set rate. You can apply slew to pitch, modulation, or anything you want to feel more fluid.

Two Flavors

  • Glide / Portamento: Slew applied to pitch – great for legato notes or slides between steps.
  • Slew Limiting: Applied to any CV signal, not just pitch. Think filter sweeps, envelope-like curves, or soft-edged randomness.

Use It For:

  • Pitch slides between notes
  • Smoothing out stepped modulation (like Sample & Hold)
  • Creating contour shapes without full envelopes
  • Making modulation more “musical” and less robotic

Even subtle slew can make a patch feel more expressive. Great for adding glide, slop, or chill to otherwise snappy control signals.

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