🎹 DB-303
Diode Bass Synthesizer
⚠️ Visual Warning
This synthesizer features animated background visuals with flashing lights and patterns.
Click an option to initialize audio...
Sequencer
120 BPM
C2
Keyboard: A-J for notes; arrows to select step and octave up/down. Spacebar for pause/play.
Oscillator
Saw ↔ Square
50%
0%
-2 Oct ↔ -1 Oct
Filter
1000 Hz
50%
50%
600 ms
50%
Devil Fish Mods
300 ms
50 ms
0.3 ms
80%
0
LFO modulation
Waveform
0.1 Hz
0 semi
0%
0 oct
Delay Effect
3 16ths
50%
Bypass
30%
Keyboard
Octave: 2
Built with WebAssembly + SIMD • Modern browsers required (Chrome 91+, Firefox 89+, Safari 16.4+)
DB-303 by LowenLabs • Open Source TB-303 Emulation