3xOSO

Visual 3-oscillator synth & learning tool · a Circuit Drift Labs tool ↗

Presets — hear what three oscillators can do

Pick a sound. With “Play demo pattern” on, it loads a short pattern and any automation so you can hear it straight away.

Filter & pitch — shaping the whole sound

Envelope — how each note starts and ends

Modulators — wobble any knob, all the time

Mix — what the three oscillators add up to

Osc 1Osc 2Osc 3Sum (before the filter)
Real output (after filter & envelope, measured at the speakers)
Spectrum: which frequencies are in the sound

Step sequencer & loop

Loop length Root C2

Automation — knobs that move by themselves

Draw on a lane with your mouse or finger, or pick a shape. Automation runs while the sequencer/loop is playing; the knob it controls glows and moves.

Keyboard

C4 MIDI: —

Computer keys: Z–M (with S D G H J) play the lower octave, Q–I (with 2 3 5 6 7) the upper one. Space starts/stops the sequencer. Press Hold to keep a note ringing while you turn knobs.