Dual filters.
Serial or parallel routing, cutoff sync, topology-aware slopes, digital special models, and cascade drive.
SoundRave presents
A modern VA built to go deep without disappearing into menus.
Four independent synthesis layers, dual filters, direct modulation, and a modular effects chain. ATROPA keeps the full instrument visible while letting a patch become as complex as it needs to be.
01 / Instrument
Sound design stays on the instrument.
OSC, dual filters, envelopes, and performance controls remain visible as one connected surface. Deep functions are there when needed, but they do not replace the main workflow.
02 / Filter + modulation
Detail where it changes the sound.
Two filters per layer, analog and digital families, direct modulation sources, and drag-to-route assignments. The deeper choices stay close to the control they affect.
Global envelope with slope shaping and inversion
03 / Modular EFX
Build an effects chain, not a fixed rack.
Add only the processors a patch needs, bypass them independently, remove them, or change their order. The chain stays visual and directly editable.
ATROPA FX works inside the synth — and on its own.
Build the chain from the Effect Browser, then add, reorder, bypass, or remove processors directly. Time, modulation, tone, dynamics, and stereo processing share one flexible workflow.
ATROPA / Access
The core instrument stays free.
ATROPA includes the synthesizer, its factory and user preset workflow, and the launch EFX. Premium expands the available effect processors without changing the core instrument.
System requirements
Minimum
- Mac (Intel): macOS 10.13 High Sierra or later, 64-bit Intel Mac
- Mac (Apple Silicon): macOS 11 Big Sur or later, Apple Silicon Mac
- Windows: Windows 10 64-bit or later, Intel / AMD 64-bit processor
Recommended
A comfortable ATROPA setup.
- Mac: Apple Silicon M1 or later
- Windows: Intel Core 12th Gen or later
- A current 64-bit AU / VST3-compatible host, where applicable