Snorkel Audio has released Additive, an additive synthesizer for macOS and Windows.
Instead of starting with a complete waveform and filtering parts away, Additive builds each note from harmonics. Set their levels, then give every harmonic its own movement: some can pulse together while others drift, shimmer, or move in the opposite direction. Shape the sound from within, from bright, bell-like plucks to resonant basses and evolving pads.
Draw a spectrum by hand, choose a shape, or use Random to find a starting point. Additive keeps every generated value editable. Bands and Slope set the spectral roll-off, while Bulk adds a resonant peak with its own position, width, and height. Draw two spectra and Morph between them by hand or with modulation, then assign the XY pad and Z axis to the controls you want to perform.
Highlights:
- Harmonic bank: shape up to 50 harmonics by drawing, choosing a shape, or using Random.
- Individual movement: set each harmonic’s LFO depth, phase, and rate independently.
- Morphing spectra: draw two spectra and move between them with a control, LFO, or envelope.
- Separate roll-off and resonance: shape Bands and Slope independently from Bulk’s position, width, and height.
- Modulation: four LFOs with nine shapes, including Drawn, Stepped, and Ramped, plus tempo sync and four envelopes.
- Performance controls: assign modulation to the XY pad and Z axis, with Z responding to the mod wheel or note velocity.
- Built-in effects: Delay, Reverb, Drive with six characters, compression, and EQ.
- Presets and sound shaping: more than 100 presets, four themes, mono or poly play, detune, chorus, stereo, and per-voice drive.
Pricing & Availability
Additive is available for macOS and Windows in VST3 and AU formats for EUR 29 during the launch offer, more than 70% off the regular EUR 99 price.
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