Devices

As a self-taught musician I play with various gear. In 2007 I started to build my own instruments.
In this page you can find the hardware projects I've developed so far. I make workshops, teaching people how to build and use them.

snus85

Snus85 is a programmable sound device, built inside a small recycled box.
It uses an ATtiny85 chip as the ATtiny multiboard and the same code can be executed on it. It is basically a remake of the pcb with a shape suitable for the new enclosure.
The chip is easily accessible so that it can be reprogrammed and replaced.
Two knobs allow control over two software parameters and therefore over the generated sound.
It works powered by 9 volts (2.1mm barrel jack, center negative), the audio output is mono, on a 1/8" jack.

matrix

matrix is a passive matrix mixer with 4 inputs and 4 outputs.
It routes multiple input signals to multiple outputs, it can be used to distribute signals to different effect chains and amplification systems or to control the gain of feedback loops when used in no-input configurations.
All the jacks are 3,5 mm (1/8") mono.
It does not require power supply.
matrix is available on my Tindie store.

Texture

Texture is a device that incorporates three independent sound generators for the production of a wide variety of sonic environments with a ever changing expressive vitality.
All sound parameters can be modified through direct manipulation of the knobs allowing a direct, fast and intuitive performance. The sound generators have complementary tonal characteristic and their circuits can be customized easily, by changing the electronic components values that affect the frequency of the oscillators and the cut-off frequency of the passive filters.
The circuit derives directly from Kinetik Laboratories' Protean, a powerful drone sound generator.
Texture is divided in three sections: Cluster, Ring and Chaos.
Cluster is composed by three frequency controlled oscillators. It allows the creation of eternally sustained chords and clusters of microtonal intervals.
In the Ring section the signal from the center oscillator is processed by two pseudo-ring modulation circuits with the other two oscillators. Adjustments of the oscillator pitches result in evocative and constantly changing Textures, bell-like or otherwise metallic sounds.
Chaos is formed by three oscillators in cross-modulation. Its sonic character far exceeds the typical white and pink noise sources. Tuning the oscillator pitches allows timbral metamorphosis and complex variations in tone and sound granularity.
Each section has a level knob to mix the three voices.
The circuit is powered on a 2.1mm barrel jack, center negative, like your favourite pedal effect.
Texture is available on my Tindie store.

multi

multi is an open hardware circuit board hosting a powerful Seeeduino XIAO, 6 pots, 2 pushbuttons, 2 Midi DIN connectors and an audio output.
The Seeeduino XIAO board carries the powerful ATSAMD21G18A-MU which is a low-power microcontroller and has 14 GPIO PINs, a DAC output and one UART interface.
The strong point is that you can program your multi as you need, using the Arduino IDE.
On the MIDI side, possible use includes advanced midi controlling, filtering and remapping as well as algorithmic arpeggiators and aleatoric patch generators. It's also perfect to explore digital synthesis techniques.

DIY kits and assembled units are available on my Tindie store.

bebe

bebe is a two oscillators sound generator with a 5 steps gate sequencer/LFO. Sound generation comes from a 4093 CMOS chip and the sequencer is implemented on an ATtiny84 MCU. It's eurorack compatible, the two oscillators have CV/GATE inputs and the sequencer generate a clock out (hackable as clock in) and two gate outputs.

bpd

bpd (borderline personality disorder) is a three cross modulated oscillators voice for eurorack systems. The sound palette of this circuit is wide, it can produce throbbling basses as well as white noise. The circuit was originally implemented for the harsh side of Dr.Jekyll & Mr.Hide. BPD has also a CV input that influences the timbre and the sound dynamic.

Hidden Sound Explorer

hse (hidden sound explorer) is a circuit that allows to amplify small voltages coming from piezo-electric transducers or from coils. It allows to scope out the electromagnetic fields produced by power supplies, electric motors, smartphones...whatever. Any electromagnetic source will produce a distinct sound.

ATtiny multiboard

ATtiny multiboard is a printed circuit board hosting an ATtiny85 micro controller unit, two potentiometers, the components to allow audio generation and a led.
The Attiny85 can be programmed by using the Arduino integrated development enviroment.