Foundations

Lesson 02: CV Vs Audio

Learn the core distinction between heard signals and control signals.

Foundations

Start with signal flow, modulation basics, and first sound design patches.

  • CV vs audio
  • oscillator, filter, VCA
  • envelopes and LFOs
Lesson

Markdown content

Theory, structure, and practical context are all driven from content files.

3

Related patches

Concrete repository anchors already exist for this lesson track.

Theory

One of the most important modular concepts is the difference between:

  • audio signals
  • control voltage signals

Audio is what you hear.
CV is what changes behavior.

Examples of CV:

  • pitch
  • filter cutoff movement
  • volume envelopes
  • LFO motion

Practical Rule

Ask two questions whenever you patch something:

  1. Is this signal meant to be heard?
  2. Or is it meant to control another parameter?

Patch Idea

LFO -> Filter cutoff
Oscillator -> Filter input

The oscillator is audio.
The LFO is control.

Practice

Build a simple patch and test three signals:

  1. oscillator to output
  2. LFO to filter cutoff
  3. envelope to VCA level