Open Source Analog-Inspired Synth

OB-Xf

OB-Xf is a continuation and modernization of the last open source release of OB-Xd. It is inspired by the venerable Oberheim OB-X.

Highlights

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The OB-Xf manual is now available as dedicated docs powered by Astro Starlight.

Latest nightly build updates for OB-Xf. Last build: Mar 7, 2026.

Latest commit: 1e15299 Full release notes

Sustain Pedal fixes (#600)

Paul · 1e15299 · Mar 7, 2026
OnRelease in LAST mode should go to *newest* not *oldest* note (#599)

Paul · be8eb8f · Mar 6, 2026
Fix menus in Audio/MIDI settings dialog not showing text (#598)

EvilDragon · ada65b6 · Mar 5, 2026
Fix look and feel on standalone; fix menu scaling error (#597)

Paul · e565918 · Mar 4, 2026
Context menu typein style tweaks (#596)

EvilDragon · 8380413 · Mar 4, 2026

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