Web OB-Xa Synth

A basic emulation of the Oberheim OB-Xa's core sound using Web Audio API.
Focuses on dual oscillators, cross-mod, filter, VCA, LFO, and a simple chorus effect.

VCOs

OSC 1 Wave:

OSC 1 Octave:

OSC 1 Fine Tune:

OSC 2 Wave:

OSC 2 Octave:

OSC 2 Fine Tune:

OSC 2 Mix:

Cross-Mod:

VCF

Cutoff Freq:

Resonance:

Env Amount:

Keyboard Track:

Attack:

Decay:

Sustain:

Release:

VCA & LFO

Attack:

Decay:

Sustain:

Release:

LFO Rate:

LFO to VCO:

LFO to VCF:

Master & Effects

Master Volume:

Enable Chorus

Chorus Rate:

Chorus Depth:

Chorus Delay:

Chorus Mix:

Play Notes

Use your computer keyboard: Z-M for white keys, S-J for black keys.

Touch the keys to play notes.

C

D

E

F

G

A

B

C

Octave: 0