Overview Details Resources Overview Details Resources

iSEM is an amazing recreation of the legendary 1974 Oberheim® SEM synthesizer expansion module. Known for its characteristic multimode filter and rich oscillators, the SEM is revered by many for its sonic power and flexibility.

Based on the TAE® technology found in our award-winning SEM V software, iSEM faithfully recreates this unique synthesizer and offers a level of sound quality that only Arturia can bring to the iPad®.


Free all the potential of the legendary Oberheim® SEM thanks to the Audio Unit Extension. In addition to being compatible with Audiobus and Inter-App Audio, iSem can now be launched directly in every Audio Unit host app such as GarageBand, offering you the same comfort and workflow as with a computer-based home studio. No more doubt is allowed, whether it is at home, on the road or on stage, with iSEM your iPad becomes the new core of your setup.



We’ve added a few new features and some of the extra functionality that people have come to expect from Arturia products. Our 8-Voice Programmer allows you to mimic the polyphonic sounds of the classic 4- and 8-voice versions as well.

The Modulation matrix greatly expands the sonic capabilities of the original. And the effects page, performance page, Apple Inter-App connectivity, Core MIDI, AudioBus: all work together to make iSEM a supreme sonic workhorse and creative force multiplier.

Artists corner

Sound corner


Main Features

  • All the original parameters of the Oberheim® SEM:
    • two oscillators, each with sawtooth wave and variable-width pulse wave with PWM
    • sine wave LFO
    • 12dB/oct multi-mode Filter with low-pass, high-pass, band-pass and notch
    • two ADS envelope generators
  • Added features:
    • An additional LFO
    • Noise generator
    • Sub-oscillator
    • Arpeggiator
    • Portamento
    • Modulation Matrix module
    • Advanced Keyboard Follow module
  • 8-Voice Programmer module with multiple playback modes
  • Onboard effects (overdrive, chorus and delay)
  • Hundreds of sounds from some of the world’s best sound designers
  • Background audio support
  • Inter-App Audio
  • Audiobus support
  • Supports WIST sync with other iOS devices
  • CoreMIDI
  • Preset compatibility with the Arturia SEM V Mac/PC software
  • Owners of iSEM and SEM V can exchange presets via iTunes file transfer