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Prompt Audio · Semi-modular synth

Etherion

Semi-modular synth with granular, FM and sample sources and 68-point envelopes

Etherion feeds three oscillator channels, each a sound source with two insert modules, into a main channel with two more stages and an effect stage. The 9 source types include FM, ring modulation, a granular engine, a sample engine and live audio input. It ships with 2,255 presets, 162 of them made by hand and 2,093 level-matched variations.

Presets
2,255
Source types
9
Envelope points
68
Parameters
956

What it does

  • Three channels, nine source types

    Each oscillator channel holds one source and two of 16 insert module types. Sources include FM, ring modulation, sync granular, a sample engine, a granular engine and live audio input.

  • Envelopes with up to 68 breakpoints

    Six modes cover release, sustain, loop, retrigger, control-driven and linked envelopes, all with tempo sync. An envelope LFO sets its depth and rate per breakpoint.

  • Draw a wave, then edit 512 harmonics

    Draw a waveform by hand and refine it in a spectrum editor with 512 harmonics. Etherion morphs between the waves you make.

  • Effects on up to 8 output channels

    The effect stage has granular, multicomb, resonator, pipe, echo and multitap effects. It outputs surround audio on up to 8 channels.

  • A sound map for 2,255 presets

    The browser places presets on a 2D map with 7 tonal range sliders, favourites and audition. A morph tool blends the current sound with the presets you select.

  • 16 macros, MPE and microtuning

    Modulate with 3 LFOs, 16 macros with MIDI learn and 4 audio-driven modulators. Etherion responds to MPE and polyphonic aftertouch and reads .scl tuning files and MTS-ESP.

Good to know

  • The 12 built-in samples are synthesized. For recorded instruments, load your own WAV, AIFF, FLAC, MP3 or OGG files.

System requirements

  • macOS 12 or later
  • Mac with Apple silicon
  • Formats: AU, VST3, Standalone
  • A host that loads Audio Units or VST3 plug-ins, for the plug-in versions

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