u-Tonal multi-expressive instrument

    
Uranograph is a musical instrument that merges the expressive depth of classical instruments with the limitless possibilities of synthesis. 
Its capacitive tactile keys and instant note articulation, encourage musicians to develop a deep connection with its behavior, refine its technique, and master its nuances.

With its ability to effortlessly reproduce microtonal notes, Uranograph is well-suited for exploring diverse musical expressions and cultural scale.

  Designed as a self-contained sonic ecosystem, Uranograph integrates an extensive 5 voices synthesis core, FX processing (both for internal and external sources), and looping into a seamless creative tool.

Ordering and project status:

**Ordering and Project Status Update 30.07.25)**
We're excited to inform you that the first batch of direct orders is currently SOLD OUT—thank you for your support! 
For those interested in future batches, we will be moving through our shops, and pre-orders will be available soon.


We plan to ship this initial batch (1st batch) in September.

MSRP price: 2,240 euro

keep me informed!

The Keyboards

the Core of Expression

Uranograph's dual keyboards layout is more than just an input devices—it's the expressive heart of the instrument, offering an intuitive yet deeply responsive interface for performance and sound exploration.
Their stainless steel touch plates provide an ultra-sensitive playing experience, responding to the most delicate gestures with precision and nuance. Unlike conventional mechanical keybeds, Uranograph's capacitive surface allows immediate, fluid articulation, enabling new microtonal performance, dynamic phrasing, and real-time sound shaping possibilities.

This continuous pressure-sensitive surface offers a playing experience closer to acoustic instruments, bridging the gap between electronic synthesis and natural musical expression.

Microtonal Flexibility & Custom Tuning

Uranograph notes output takes advantage of a series of prepared keyboards, where each key can be easily assigned to any pitch or pure frequency, offering complete keyboard design and tuning flexibility.

Whether adhering to traditional Western tuning, exploring Arabic maqams, Indian ragas, Just Intonation, or experimental microtonal divisions, Uranograph provides an expansive range of tonal possibilities.

Preloaded with 50 keyboard layouts
Customizable keyboards allow users to design and store personalized layouts.
Instant recall ensures seamless transitions between different tonal systems.

This adaptability makes Uranograph an ideal instrument for non-standard tuning, enabling deep engagement with diverse musical traditions and avant-garde soundscapes.

Control Keyboard

Beyond pitch control, Uranograph features a dedicated control keyboard designed for dynamic, hands-on sound transformation. Unlike traditional mod wheels or faders, this touch-based control surface enables intuitive, real-time interaction with synthesis parameters, allowing for expressive, gestural modulation.

The control keyboard is divided into three functional sections: Articulation, Octave Shift, and ModKeys.

Three dedicated articulation plates provide instant access to advanced phrasing techniques and canonic musical articulations found in stringed instruments: glissando, trillo, and staccato.

Glissando: Enables smooth pitch slides between consecutive notes

Trillo: alternates between notes

Staccato: enable a different envelope engine that shortens note duration and create percussive attack

Each articulation can be activated momentarily (by holding the plate) or latched (by tapping once), offering precise control over phrasing. This flexibility allows musicians to engage articulations selectively, shaping expression dynamically within a phrase. They can introduce variation within a note and the successive one or as a general character of the part.

Three faders are implemented on the panel to quickly change the articulation's behaviors.

Two ModKeys serve as fully assignable, pressure-sensitive controllers for precise real-time modulation of synthesis parameters

Each plate dynamically responds to pressure, enabling simultaneous control over multiple parameters.

By integrating expressive modulation gestures with the performance keyboard, players can shape fluid, evolving textures that respond organically to touch—enhancing expressivity and immediacy in synthesis.

ModKey destinations and maximum values can be adjusted in the menu and stored during pattern changes

Additionally, two small potentiometers can be used to set the slewing factor for the rise and fall of the pressure value.

Octave Shift & Bend Functionality

At the bottom, two integrated octave shift plates provide instant transposition, allowing players to increase or decrease the octave range in momentary or latching modes.

Momentary Mode: Holding a plate temporarily shifts the octave.
Latching Mode: Tapping once locks the new octave until changed.
Bend Mode: Pressing both octave plates simultaneously activates the pitch bend feature, allowing for fluid and expressive pitch manipulation, similar to bending notes on stringed instruments.

Advanced Harmonic and Phase Manipulation

Synthesis Core

Uranograph's core is built on additive and phase morphing synthesis, offering an innovative approach to shaping its five oscillators.

The primary sound source is a core oscillator that starts as a pure sine wave and transforms through multiple synthesis techniques, generating a spectrum of timbres from warm, organic tones to sharp, digital textures.

Uranograph provides multiple methods to modify the primary sine wave, introducing even and odd harmonics and sidebands, shaping both harmonic and inharmonic spectra. By altering the phase of a sine wave without changing its fundamental frequency, Uranograph transforms simple waveforms into dynamically evolving textures that range from warm and bell-like to metallic and aggressive.

Size (Phase Warping & Spectral Expansion): Stretches waveforms, altering harmonics similar to pulse-width modulation.
Tilt (Asymmetric Amplitude Distortion): Inspired by the Casio CZ series, this phase distortion skews waveforms asymmetrically, generating sounds from soft and vocal-like to harsh and metallic.
Fold (Wave Folding): Nonlinear reflection of signals creates a harmonic-rich spectrum, akin to West Coast synthesis.

Primary controls:

The core oscillator can be split and harmonized up to three voices, each following a chromatically quantized deviation from the main frequency set by the keyboard. This deviation can be changed trough F1 and F2 faders.
This creates chord-like voicings, which are ideal for harmonic layering and ensemble effects.
Polyphonic density can be changed trough the Alias knob, that permit to easily change between a chord from a mono sound.
This enables Uranograph to function more as a harmonizer effect than a standard polyphonic synth.
The two additional voices are direct copies of the primary waveform and inherit all parameter modifications from the panel, ensuring a cohesive harmonic response across all voices.

Each keyboard key can be programmed to ouput a mono note or a chord.
The central core oscillator works in a dual-spectrum configuration with a dedicated sub-octave oscillator.
While the core oscillator's rich harmonics define the upper-frequency spectrum, the sub-generator reinforces lower frequencies, ensuring depth and body.
Waveforms: Sine, saw, and square waveforms selectable via a switch.
Selectable Sub Frequencies: unison, one or two octave below
Completing the architecture, a dedicated modulation oscillator serves as either an additional fifth voice or a modulation source.
- Frequency follows the keyboard, but its base rate is controlled via the speed knob.
- The frequency range is 0.001 Hz to 3,000 Hz, allowing for both slow-evolving modulation and audio rate for rich spectral transformations.
- Waveforms: Sine, saw, and random noise selectable via a dedicated switch.
A dedicated modulation amount knob determines how the modulator interacts with different synthesis parameters selected through a rotary potentiometer: AM, FM, Size, Tilt, Fold, or mix.
This final layer opens the door to classic and unconventional sonic textures, making the Uranograph a versatile tool for sound design exploration and experimental synthesis.
In Uranograph's additive and phase-morphing synthesis architecture, the filter plays a different role than in traditional subtractive synthesis. Unlike classic synths where filtering is crucial for shaping harmonics, Uranograph's core oscillators inherently define the harmonic content through their phase manipulation and additive processes. As a result, harmonic reduction and spectral shaping are already embedded in the sound generation itself.
After the summation of the core oscillator, SUB, and MOD, Uranograph features a versatile circuit that functions as a VCA / Low Pass Gate (LPG) hybrid.
The resonance, ranging from subtle warmth to highly aggressive self-oscillation, add an organic response to dynamic playing.

FX

Uranograph's core sound engine is enhanced by a suite of tailored DSP effects, meticulously designed to shape and refine every aspect of its timbres. These effects are fully integrated into the synthesis architecture, ensuring seamless interaction with the instrument's dynamic sound design. From spatial depth to harmonic reinforcement, these tools expand the Uranograph's sonic capabilities, offering immersive and evolving textures.

Uranograph's stereo delay system is engineered for rhythmic enhancement and spectral manipulation, seamlessly blending traditional echo effects with Karplus-Strong-style resonation.

DeltaT knob controls delay time with two distinct behaviors: in the first 25% of its range, time adjustment functions as a micro-timed continuous shift, allowing the delay to function as a resonator, producing rich tonal textures.

Beyond this range, the knob locks into a BPM-synced grid, ensuring precise rhythmic subdivisions, including:

1/32, 1/16T, 1/16, 1/8T, 1/8, 1/4T, 1/4, and 1/2 notes.

To further sculpt the spatial and rhythmic complexity, the Regen knob controls feedback intensity, with an internal function allowing for infinite regeneration without system overload.

Additionally, Delay Shift introduces a percentile offset between the left and right channels, unlocking possibilities for polyrhythmic textures, expanded stereo imaging.

Built-in Reverb

Complementing the delay network, the built-in parallel reverb (diffuse knob) is designed as a one-knob solution that smoothly transitions from subtle, intimate reflections to vast, enveloping ambiance.

A diffusion control automatically adjusts the density of reflections and functions as a natural acoustic enhancer or a synthetic atmospheric effect.

In its first half, it behaves like a tight to medium room reverb, perfect for adding clarity and presence to percussive elements, resonant leads, and evolving pads.

At its most extreme, the reverb creates dense, cloud-like textures that blur the boundaries between rhythm and space, producing dreamlike, ethereal environments.

Looper: Real-Time Layering & Manipulation

At the heart of Uranograph’s sonic capabilities is its dual‑reel tape looper—an integrated system purpose‑built for real‑time recording, overdubbing, and layering.

Independent time bases

Each reel can run on its own clock division (1, 2, 4, 8, 12, or 16 beats) and offers reverse mode and an individual decay curve.
Two recording modes can be chosen:

One‑shot – When you press Rec, the deck first waits until it detects audio, then records for the specified loop length before switching to playback.
Continuous – Inspired by Frippertronics, this mode records and overdubs non‑stop, letting the music evolve organically with every pass.

Signal flow

The looper captures the post‑effects mix and routes it to one reel at a time—never in parallel:

A shared Input Level sets how much of the live signal is written to tape.
Two Arm buttons let you choose which reel is actively recording (only one can be armed at any given moment, while the other plays back its existing loop).
Each reel has its own Playback Level for precise blend control.

Keyboard re‑pitching

Each reel’s loop can be “played” melodically with the keyboard.
When you press any key:

The loop instantly resets to its start point.
Its pitch is shifted to match the chosen note—without altering playback speed—so timing remains locked to the master clock.

This lets you transform static textures into bass lines, chords, or lead motifs on the fly, opening up a whole new performance dimension.

Decay behaviour

The Decay knob governs how much of the existing audio is retained each time the tape cycles:

Decay 0 % – Nothing is erased; layers accumulate indefinitely for true sound‑on‑sound.
Decay 100 % – Each pass completely overwrites the previous one, acting as a transient looping buffer.
Anything in between – Produces gradually fading echoes that balance freshness with continuity.

Whether crafting intricate polyrhythmic structures or immersive, cinematic soundscapes, the tape looper encourages spontaneous experimentation and deep musical expression. Seamlessly integrated with Uranograph's synthesis engine, it serves as a powerful tool for both structured performance and free-form sound exploration, making it essential for dynamic composition and live improvisation.

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Save & Recall: Effortless Preset Management

Uranograph features a powerful save and recall system, allowing you to store and instantly retrieve all knob and fader positions, keyboard layouts, and parameter assignments for later use.

With eight banks of 12 programs, you can access 96 presets in total, ensuring extensive flexibility for live performance and studio work.

Metronome for Live Performance & Looping

A built-in metronome is routed exclusively to the headphone output to support live performances and looping workflows. This ensures discreet tempo guidance without affecting the main mix.

This feature is handy for looping, tempo synchronization, and structured live performances, helping musicians stay locked to a rhythm without external cues.

External integration

Uranograph is more than a self‑contained synthesizer: it acts as a versatile hub for external sound processing. A studio‑grade, low‑noise balanced preamp with combo XLR/¼‑inch jack input lets you plug in microphones, guitars, drum machines—anything with a line‑ or mic‑level signal.

External audio merges with the synth’s internal voice before it reaches the FX engine, so every sound—from delicate vocals to gritty drum loops—can dive into Uranograph’s FX, and, ultimately, the dual‑reel looper.

Picture this: you plug in a mic, croon a single phrase, and in the same breath it’s swimming in tape delay and reverb, caught by Reel A, and instantly “playable” across the keyboard—each key press rebooting the loop while pitching it into lush harmonies or thunderous sub‑octaves. External audio doesn’t just pass through; it’s reborn as a living, keyboard‑controlled texture that can be layered, reversed, or decayed into oblivion alongside Uranograph’s own voices.

Uranograph turns vocals, guitars, and field recordings into fluid, repitchable soundscapes—ready for live performance, spontaneous looping, and jaw‑dropping moments you can’t achieve anywhere else.

Technical Specifications

Uranograph is a dual-CPU digital instrument designed for high-performance audio processing and real-time control.
The audio engine features a 24-bit high-quality codec, delivering pristine sound fidelity.

Build & Design

Precision CNC-machined from a solid aluminum block is anodized and laser-engraved for durability.
Compact form factor: 350 × 360 mm footprint with an ultra-slim 28 mm body profile.
Capacitive touch plates made from stainless steel offer long-lasting life.
Touch bend surfaces crafted from special opaline black plexiglass, interacting dynamically with underlying LED lighting.
VESA 75x75 M6 screws on the back

Power & Connectivity

Power: 12–15V center-positive DC adapter.
High-quality headphones output via 3.5mm jack, featuring a dedicated level control and a MAX4410 driver for optimal signal integrity.
Dual balanced line-level TRS outputs (L & R main) for professional-grade audio output.
XLR/6,3mm combo input with preamp and phantom power
1x combo 3,5mm analog clock IN or MIDI in
1x assignable CV/gate in
1x 3,5mm clock OUT