Elastic OSC, Plaits-derived poly, is now a macOS and Windows plug-in, too

Elastic OSC expands on Émilie Gillet’s 24 original open-source Plaits oscillator models, adding 8-voice polyphony, expression (MPE), a modulation engine, and Elastic effects. And if that sounds like something you wish you had in your computer DAW and not just Android and iOS, now you’re in luck.

Your iPad and iPhone just became a portal to endless DX7 sounds

You may think you know the Yamaha DX7 from those couple of presets that dominated the 80s. But Oliver Greschke’s Elastic OSC for iPhone and iPad is a reminder of just how much potential Yamaha’s breakthrough FM synth can offer. And now Elastic OSC app can easily import those sounds, with a bunch of unique presets to get you started — plus a link to a cool generative tool that works with anything.

Peter Kirn - September 11, 2025

Elastic OSC is a Mutable Instruments-based polysynth voice for iOS: tested

Developer Oliver Greschke (MoMinstruments) built an AUv3 iOS synth around the DSP from Emilie Gillet’s legendary open-source Mutable Instruments Plaits VCO. Elastic OSC gives you unique touch-based controls, plus new features that let you use Plaits’ sound palette as a complete mono/polyphonic instrument.

Peter Kirn - May 5, 2025