Oscilloscope: draw a sound's shape

An Oscilloscope fill draws audio as a glowing beam, left channel against right. Simple tones make clean figures.

Try this

  1. Press play. The green time under each artboard's title lights up while that part plays.
  2. Select a beam and open Oscilloscope. Drag Gain for size and Exposure for brightness.
  3. Drag Persistence up for a longer trail, or Window up to draw more of the sound at once.
  4. Set Graticule above 0% to show a measuring grid.