Bram Bos of Ruismaker has announced the release of a new synthesizer instrument for iOS. A “Complex Oscillator Synth”, Hilda is inspired by the most interesting aspects of both west-coast and east-coast synthesis techniques.

You’ll find a wave folder, lowpass gate, and audio-rate modulations, but also a 12-mode filter and traditional VCA circuit.

All parts of the instrument are carefully circuit-modelled to sound as analog (or digital, where applicable) as possible. It’s laid out like semi modular synth, but without the patch cables and all the interesting connections are already normalised for you.

The eclectic mix of different synthesis components adds up to a unique sounding electronic instrument, which can be used as a playable synthesizer, a drone/noise box, a MIDI sequencer and an audio effect for external audio – or any combination of those three.

Hilda features

  • Full Audio Unit compatibility (AUv3 instrument, audio effect and MIDI processor modes supported).
  • Universal design (iPhone and iPad; iPad Air 2 or higher recommended).
  • Built-in analog style 16 Step MIDI Sequencer with custom scales.
  • 12 mode filter, based on the Oberheim Xpander design.
  • Drone mode lets you [partially] bypass the VCA/LPG and just go with the flow.
  • DIY Lo-Fi digital delay circuit emulation.
  • Live pads with effects that can be triggered via the UI (or via exposed AU Parameters).
  • All synth settings exposed a AU Parameters (for automation and MIDI learning in your host of choice).
  • MIDI Processor plugin mode disables synth to save CPU.

Hilda is available to purchase at the App Store for $12.99 USD.

Bram has kindly donated a free copy of the synth for one of you to win. Just leave a comment below and the lucky winner will be picked from all entries submitted before Sunday May 7th, 2023, 11.59pm CET (one entry per person allowed).

More information: Ruismaker