Ciderka Labs
Where sound ferments.Transparent, community-driven audio tools made by a double bassist from the Czech Republic.
The story
How Ferment began
I'm Petr, a double bassist and developer. I've spent years with an upright bass, studying its resonance, how the bow shapes tone, and how acoustic instruments demand something different from the tools designed for synthesizers.
Ferment started as a personal research project. I couldn't find an effects plugin that understood bow dynamics, acoustic resonance and the nuances of stringed instruments. So I built one.
What began with upright bass expanded. Violin. Cello. Guitar. Synth. Voice. Every instrument that deserves expressive processing. The idea was simple: instead of forcing an instrument into a preset, let the preset adapt to the instrument.
Approach
Transparent about AI
Ferment wouldn't exist without AI. I use Claude for code, Gemini Flash for Magic mode. This isn't a gimmick. It's how a one-person lab ships a product that would otherwise take a team.
I'm transparent about it. Magic mode tells you it's powered by AI. The presets it generates are real, configurable and refinable. You're not locked into what the algorithm suggests. You take it, own it and shape it further in Machine.
AI is a tool. Like a DAW. Like a synthesizer. It amplifies what's possible when you're building alone.
On naming
Ciderka and fermentation
Ciderka comes from a small craft cider project — pressing and fermenting what nature offers. No shortcuts. Just time, patience and intention.
At Ciderka Labs, we do the same with sound. Press and ferment. Compress complexity into simplicity. Take raw material and transform it into something intentional.
Philosophy
How we build
Ferment is indie — built by one person, decisions are fast, and the product serves musicians, not investors. We believe in transparency: no dark patterns, no subscription creep, one price forever with a free trial that unlocks all features. Feedback shapes the roadmap, you own your presets, and the plugin is built for collaboration, not lock-in. 🎛
You buy Ferment once and it's yours — updates are free, no recurring fees, no gating features behind a paywall. The free trial gives you everything: 92 parameters, Magic mode, Material profiling, Library. The only limit is 3 preset saves. The goal is simple: make a tool musicians love, not to maximize engagement or extract data. Make something useful. Let it speak. 🎻
Get in touch
Let's talk
Ready to explore?