SoundRave is giving away ATROPA, a virtual analog synthesizer plugin, completely free of charge.
In this article we cover the giveaway details and an overview of what ATROPA can do. Read on to find out whether it deserves a spot in your plugin folder.
What Is SoundRave ATROPA?
ATROPA is a modern virtual analog synthesizer built around four independent synthesis layers, a dual filter section, a modulation matrix and a modular effects chain. It is designed to be deep without burying functionality inside menus, so the entire instrument stays visible and editable on a single screen.
Each layer carries two oscillators, and there are four layers in total, a 16-slot modulation matrix, up to 32 voices of polyphony and 13 built-in effects. The oscillators, dual filters, envelopes and performance controls are laid out as one continuous, always-visible control surface, and the deeper parameters sit right next to the controls they affect.
The dual filter section supports serial and parallel routing, cutoff sync, topology-dependent slopes, digital-style filter models and cascade drive. The effects section is modular: you only add the processors a given patch actually needs, and each one can be bypassed, deleted or reordered individually.
What you get for free is the synthesizer itself, the factory and user preset workflow, and the 13 effects built into the synth. The standalone effect version, ATROPA FX, is a paid product.
| Specification | Value |
|---|---|
| Synthesis layers | 4 independent layers |
| Oscillators | 2 per layer |
| Modulation matrix | 16 slots |
| Max voices | 32 |
| Built-in effects | 13 |
| Price | Free (ATROPA FX effect version is paid) |
Key Features
- 4 independent synthesis layers (2 oscillators per layer)
- 16-slot modulation matrix with up to 32 voices
- Dual filters with serial/parallel switching, cutoff sync and cascade drive
- Global envelopes with slope shaping and inversion, plus LFO, step and MIDI modulation sources
- 13 built-in effects included in the free version (Delay / Reverb / Chorus / Phaser / Flanger / Drive / EQ / Filter / Comp / Limiter / TransGate / Ring Mod / Stereo Imager)
- Modular effects chain: add, reorder, individually bypass or delete any processor
- Note: the standalone "ATROPA FX" plugin and the three Premium EFX are paid and are not included in the free version
- Preset browser that unifies the factory and user libraries (search, favorites, categories, banks, import/export, Save As)
- A/B function for comparing two sound states, plus a randomize function
How to Download and Install ATROPA
Head to the download section of the official page and pick the installer that matches your system: DOWNLOAD FOR WINDOWS, DOWNLOAD FOR MAC (INTEL) or DOWNLOAD FOR MAC (APPLE SILICON). The presets are obtained separately via DOWNLOAD PRESETS. The standalone effect version, ATROPA FX, is a paid product.
Conclusion
That wraps up the free giveaway details for SoundRave ATROPA. With four layers, dual filters, a 16-slot modulation matrix and 13 built-in effects, it is an unusually complete virtual analog synth to be offering at no cost, so it is well worth grabbing while it is available.