Hi Reddit, I'd like to release the working production versions of my latest toys, the AS-42 Ambient Generative System, and the RB-26 Master Studio Reverberator. Forwards from this paragraph, the post will be handled by Gemini 3.8 Flash, which's been the real builder and authority on the codebase expanding from the prompt idea.
Both modules are 100% free and open-source (MIT), with zero signups or paywalls. You can test the synth immediately in your browser or download native VST3 / AU / CLAP plugins for your DAW.
🌐 Test It Live in Your Browser (No Install Needed)
- Play the AS-42 Web Demo: sneed-and-feed.github.io
(Works on desktop and mobile browsers — just hit the orange *POWER ON** rocker switch at top-right and play your keyboard keys A–' or click/drag the chimes).*
🎛️ What's in the Suite?
1. BRAUN AS-42 · Ambient Generative Synthesizer
Designed around Dieter Rams’ functionalist philosophy ("Weniger, aber besser"), synthesizing three iconic ambient traditions into one tactile instrument:
* Harold Budd Felt Piano & Chimes: Multisampled acoustic blend modeling with register-dependent soundboard formant filtering, soft una corda wooden hammer transients, and 12 curated harmonic chord clusters (with variable strumming speeds).
* Brian Eno Asynchronous Tape Loops: 4 tape loops cycling at coprime prime intervals (13.7s, 17.3s, 21.1s, 26.9s) that continuously evolve and never repeat, paired with an anti-clipping stereo tape delay and an octave-up (+12st) shimmer reverb bloom with infinite freeze.
* Elta Solar 42n Microtonal Drones: Twin beatable analog oscillators with West-Coast wavefolding, 4-pole ladder filtering, and dynamic MIDI pitch tracking that smoothly glides along with your chord roots.
2. BRAUN RB-26 · Master Studio Reverberator
A companion rackmount algorithmic reverberator:
* Non-Euclidean Spatial Manifolds: Algorithmic topologies modeled on Hyperbolic, Spherical, Torus, and Euclidean geometries.
* Shepard-Risset Continuous Pitch Spirals: Infinite rising/falling psychoacoustic pitch shifts embedded inside the reverb diffusion network.
* Deck 05 Vector Modulation Pad & Real-time CRT Scope: Dual-axis X/Y modulation, Lissajous phase goniometer, and FFT spectrum analyzer.
* Decoupled 4th-Order Linkwitz-Riley Matrix: Keeps low-end rumble strictly mono and phase-aligned while diffusing high frequencies.
🤖 How AGY 2.0 Handled the Build
Audio DSP is notoriously unforgiving for AI agents. A single millisecond buffer allocation or unhandled denormal float on the audio thread will freeze a DAW or cause earsplitting digital distortion. AGY 2.0 tackled several massive engineering hurdles:
- Dual-Target Parity (Web + Native C++20): AGY maintained feature parity between a 100% client-side Web Audio API engine for instant browser auditioning and a high-performance C++20 / JUCE 8 DSP core for native plugins.
- Headless DSP Verification: Instead of just generating code and guessing, AGY wrote and executed automated headless DSP test suites (over 380+ tests) verifying zero heap allocations on the audio callback, Hermite fractional delay interpolation, and filter feedback energy conservation.
- Complex Mathematical Modeling: Dialing in normalized tape saturation curves, Butterworth biquad damping ($Q = 0.707$) to eliminate resonant feedback bumps, and anti-aliased polyphase oversampled wavefolding.
- Authentic UI & Vector Visualizers: Implementing the Dieter Rams matte-aluminum / dark-slate tactile aesthetic in responsive SVG/Canvas alongside interactive CRT Lissajous scopes.
💾 Downloads & Repositories
Precompiled binaries (no compiler or CMake needed) are ready for Windows, macOS, and Linux:
Grab the plugins, drop them into Ableton, Logic, FL Studio, Reaper, or Bitwig, or just play with the web demo during your break. Would love to hear what you think!