pichenettes/eurorack

Features

• Eurorack Modular Synthesis - Provides a comprehensive system for building and programming custom Eurorack modular synthesis hardware.
• Physical Modeling Synthesis - Simulates the acoustic properties of strings, reeds, and percussion using modal resonators and state variable filters.
• Musical - Produces sawtooth, triangle, square, and pulse waves with morphing and character controls for synthesizer sounds.
• Frequency Filtering - Provides multimode filters with variable responses and precise 1V/Oct frequency tracking.
• Filter Modulation - Implements voltage-controlled modulation of filter cutoff and resonance parameters for musical pitch tracking.
• Excitation Sources - Produces bowing, blowing, or percussive sounds using noise generators and samples to trigger resonant structures.
• Granular Synthesis - Provides a buffer-based engine that slices audio into grains to create complex textures and time-stretched soundscapes.
• Audio Volume Controls - Scales audio signal volume using linear or exponential modes driven by external control voltage.
• Control Voltage Processors - Provides a suite of tools to loop, shuffle, and quantize external control voltage signals.
• Envelope Controls - Generates AD and AR envelopes to dynamically control gain and filter cutoff.
• Complex Envelope Generators - Creates multi-stage voltage contours using configurable ramp, hold, and step segments based on input patching.
• Generative Rhythmic Sequencing - Creates evolving rhythmic patterns and melodic sequences using stochastic models and Euclidean generators.
• Audio Synthesis - Produces audio using virtual analog, FM, additive, wavetable, and speech synthesis methods.
• Parameter Modulation - Accepts external control voltages to dynamically change the synthesis model and timbre.
• Modulation Signal Processing - Scales, inverts, offsets, and mixes control voltage and audio sources to shape complex modulation signals.
• Note Pitch Transposition - Constrains an incoming voltage signal to a specific musical scale to ensure harmonically correct notes.
• Pitch Quantization - Maps incoming control voltage to a selection of musical scales to ensure harmonic accuracy.
• Modal Resonators - Simulates physical structures like plates or strings using state variable filters based on material and geometry.
• Tone Synthesis - Generates audio using modal, sympathetic, or non-linear string models with configurable polyphony and spectral inharmonicity.
• Polyphonic Voice Allocation - Manages voice allocation, keyboard ranges, and note priority to map input to output.
• Percussion Synthesis - Models kick, snare, and hi-hat sounds using adjustable parameters for tuning, punch, and decay.
• Sound Synthesis - Produces complex sounds using macro-oscillators, resonators, and modal synthesis for musical compositions.
• Granular Synthesis - Extracts and layers multiple concurrent audio grains from a buffer with control over position and size.
• Waveform Oscillators - Generates digital oscillator signals such as sine, square, or sawtooth to replace standard pitch voltages.
• Carrier Waveform Generation - Produces digital oscillations in various shapes including sine, triangle, and sawtooth with through-zero FM capability.
• Complex Digital Oscillators - Creates complex audio signals including hard-synced oscillators, ring modulation, FM synthesis, and pulse trains.
• Step Sequencers and Clocks - Provides a rhythmic generator that produces gated patterns, Euclidean sequences, and synchronized clock signals.
• Wavetable Synthesis - Cycles through a library of diverse waveforms or chord syntheses organized in maps for evolving timbres.
• Control Voltage Modification - Adjusts the amplitude, offset, or polarity of a control voltage to calibrate its effect on modules.
• Control Voltage Processing - Manipulates modulation signals through scaling, offsetting, and quantization to shape synthesizer behavior.
• DC-Coupled Signal Paths - Maintains direct current across audio and control inputs to enable precise voltage-controlled modulation and offsets.
• Multitimbral MIDI Mapping - Translates MIDI note and controller data into independent control voltage streams for multiple concurrent voices.
• Modular Synthesizer Firmware - Ships a set of digital signal processing routines for building modular synthesis hardware and control voltage modules.
• Rhythmic Clock Generation - Produces internal or external clock signals with adjustable rates and rhythmic prediction for modular synchronization.
• Control Voltage Offsetting - Adds a variable positive voltage to a modulation source to adjust the operating range of gain controllers.
• Voltage Tracking Systems - Implements 1V-per-octave calibration to ensure musical pitch accuracy across oscillators and filters.
• Clock Synchronization - Aligns internal tempo and beat timing with external clock signals to maintain rhythmic synchronization.
• External Clock Locking - Locks the internal frequency to an external reference signal to generate harmonics and maintain rhythmic timing.
• Periodic - Produces envelopes and low-frequency oscillations across three frequency ranges with voltage-controlled offsets.
• Audio-Rate Control Modulations - Adjusts excitation and resonance settings using external control voltages for audio-rate modulation.
• Audio Graph Routing - Implements modular networks for routing audio signals between synthesis sources, diffusers, and resonators.
• Audio Mixing - Combines multiple DC-coupled signal inputs into mix outputs using voltage-controlled amplifiers.
• Dynamics Processing - Provides tools for managing signal dynamics, including peak reduction and limiting with optional sidechain inputs.
• Audio Recording - Records stereo or mono audio into memory buffers with adjustable resolution for later recall.
• Signal Routing - Routes multiple filter outputs, such as band-pass and low-pass, for further signal processing.
• Control Signal Mixing - Combines multiple audio or control voltage sources into a single output while maintaining signal transparency.
• Voltage Loop Generation - Repeats a single segment or sequence indefinitely or during a gate signal to produce LFOs.
• Drum Programming - Produces rhythmic trigger or gate patterns for percussion channels using a compressed representation of variations.
• Envelope Followers - Measures the envelope and frequency content of input signals to modulate gain stages.
• Noise and Grain Generators - Produces processed noise, clocked digital noise, and sinusoidal grains for textural and particle synthesis.
• Low-Pass Gates - Filters brightness and controls volume through an internal low-pass gate triggered by external signals.
• Musical Scale Learning - Programs custom quantizers by analyzing the frequency and prominence of notes played during a recording.
• Parameter Controls - Adjusts brightness, damping, and excitation position using voltage-controlled inputs to modify timbre and decay.
• Sample and Hold Circuits - Captures a voltage level upon receiving a trigger and maintains that value until the next trigger.
• Digital-to-Analog Waveform Synthesis - Generates audio-rate waveforms including sine and sawtooth through high-speed converters and digital oscillators.
• Noise Generators - Creates abrasive noise at audio rates to serve as a sound source for synthesis.
• Pulse Wave Generators - Produces aliasing-free digital pulse waves with adjustable duty cycles via presets or continuous voltage control.
• Low Frequency Oscillators - Produces periodic waveforms with adjustable frequency, morphing shapes, and rhythmic clock locking.
• Looping and Shuffling - Records and repeats sequences of rhythms or voltages with adjustable lengths and random order.
• Modular Hardware Specifications - Provides open-source designs and firmware specifications for building modular audio synthesis hardware.
• Voltage Polarizers - Controls signal amplitude and polarity using polarizers and attenuverters to alter sound dynamics.
• Waveform Shaping Tools - Modifies signal segments between linear, exponential, and sinusoidal forms while applying digital filtering or wavefolding.
• White Noise Generation - Produces a white noise signal to serve as a source for random voltage or audio synthesis.
• Random Voltage Generation - Produces voltages based on configurable statistical distributions with adjustable ranges and bias.
• Voltage Distribution - Buffers a single input signal and sends it to multiple outputs to prevent voltage drop in modular systems.
• Hardware Interfacing - Interfaces with external hardware to convert MIDI signals to control voltages and distribute power.
• Gain Controls - Provides 12-bit precision control for adjusting gain levels and transitions across multiple channels.
• Stochastic Pattern Generation - Produces generative rhythmic triggers and voltages using statistical distributions and random-walk models.

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