Innertia Audio

Instruments and effects

Four plugins, open source, each built from a model of the thing rather than a recording of it.

Epi playing the tine piano: the drawn keyboard, the string bank above it, and the action, tine, pickup and amp sections
01Epi

Epi

Five modelled keyboards

A tine piano, an electric grand, a reed piano, an acoustic grand and a clav, each built from the mechanism rather than recorded from it. Lean on a note and the colour changes, not just the volume — because the model is doing what the steel does.

  • Five instruments
  • 88 voices each
  • Sympathetic resonance
  • Workshops
  • Microtonal tuning
FormatsVST3 · AU · CLAP · Standalone
SystemsmacOS · Windows · Linux
Versionv0.8.0 · 2026-08-26
The Doobie interface: the tape transport with its reels and head block, four playback head faders, the delay and filter sections, and the reverb panel
02Doobie

Doobie

Multi-head tape echo, spring and plate

Four playback heads moving over one piece of tape, five delay characters including a playable pitch shifter, a six-stage phaser and nine reverbs — and almost all of it can be placed before the delay, after it, or inside the feedback loop, which is where dub lives.

  • Four tape heads
  • Five characters
  • Pitch shifter
  • Six-stage phaser
  • Nine reverbs
  • Routable feedback
FormatsVST3 · AU · CLAP · Standalone
SystemsmacOS · Windows · Linux
Versionv0.25.0 · 2026-07-04
The Jove voice page: five oscillators with their waveform displays, sub and noise, the mixer, and the filter and voicing sections
03Jove

Jove

Polysynth with a patchbay

Five oscillators and seven filter models behind an EMS-style patchbay that rewires the voice itself rather than offering you a routing menu. MPE throughout, and a preset bank you can browse by ear without reaching for the gain.

  • Five oscillators
  • Seven filters
  • Patchbay
  • 32-slot matrix
  • Four sequencers
  • MPE
FormatsVST3 · AU · Standalone
SystemsmacOS · Windows · Linux
Versionv1.1.1 · 2026-07-19
The Spice FX interface: the saturation model selector, drive and tone controls, and the cabinet section
04Spice FX

Spice FX

Saturation and cabinets

Ten saturation models with ten transfer curves — not one curve at ten different gains — plus cabinets, mid-side processing and oversampling whose alias rejection was measured rather than assumed. Open sourced in 2025.

  • Ten saturation models
  • Ten cabinets
  • Mid-side
  • 4× oversampling
FormatsVST3 · AU · LV2
SystemsmacOS · Windows · Linux
VersionSource