Learn / Synth LabInteractive · Free · In your browser
Turn a knob.
Understand the sound.
Build a sound from two oscillators. Play, listen and see what changes — with a little guidance whenever you need it.
01 / Oscillators
Wave shapes above are illustrations. The scope below measures the sound.
02 / Low-pass filter
Let the low frequencies through. Shape the brightness above the cutoff.
03 / Volume envelope
Envelope changes apply to the next note. Sustain is a level; the other controls are times.
04 / Movement
See what you hear
Output waveform · amplitude over time · play a note to see the signal.
Play it.
Click or touch the keys. Computer keyboard: A W S E D F T G Y H U J K. Space: Play / Stop.
Ready. Start with your listening volume low.