The short guide
Understand the idea
Automation is a recorded change to a setting over time. Instead of leaving a fader or filter in one place, you draw how it should move, and the music follows that line every time it plays. Producers use it for fades, filter sweeps, builds and drops.
What you can explore
- Draw a volume fade-in across four bars.
- Sweep a lowpass filter from dark to bright.
- Choose straight, eased or held moves, then shape four bars like song sections.
A worked example
A four-bar build
A pad plays four chords, one per bar. The volume curve holds at 30% through bar 1, rises to 60% by bar 3, eases up to 100% by bar 4 and holds there. The brightness curve follows a similar path, from a dark 800 Hz to a bright 12 kHz. Together they make the loop feel like it is opening up.
- Bar 1
- Hold: quiet and dark, nothing moves.
- Bar 2
- Straight rise: volume and brightness climb evenly.
- Bar 3
- Eased rise: starts gently, speeds up, settles.
- Bar 4
- Hold: full volume, fully open.
How to practice
Select a point on the curve, then move the large slider or press the minus and plus buttons. Every saved change stops the sound, so press Play to hear the whole loop from the start. There is no timer or score.
Try a four-bar reveal: a quiet opening, a build and a stronger ending. During playback, the bar cue follows the sound clock so you can relate your curve to the loop. It is approximate; output latency can make what reaches your speakers differ from the displayed bar.
Volume and brightness are saved separately. Switching between them only changes which curve you are editing. When the loop repeats, each curve glides from its End value back to its Start value in about 15 milliseconds. If End and Start are far apart, you may hear a quick change. Matching those values removes that quick parameter reset.
With sound off, the lesson becomes a drawing exercise: you can still shape and review both curves, but you are reading the lines, not hearing them.
Common questions
What is automation in music?
It is a planned change to a setting, such as volume or a filter, drawn over time so the music follows it on every play.
What is a filter sweep?
A filter sweep moves a filter cutoff over time. With a lowpass filter, a low cutoff sounds dark and muffled and a high cutoff sounds bright and open.
What is the difference between straight, eased and hold?
Straight moves at an even speed. Eased starts and ends gently. Hold stays at the first value and moves only at the end of the bar.
Why can I not finish with every volume point at 0%?
This exercise asks you to make an audible loop, even if you choose to work without sound. Raise at least one Volume point above 0% to continue. The lesson does not use your microphone, and this browser keeps your curves and the step you are on.
Published by TunePal. Interactive examples for beginner music producers.