Der intonarumori („Geräuscherzeuger“) war eine Zusammenstellung verschiedener Kästen mit Schalltrichtern, die speziell behandelte Membrane zur Erzeugung verschiedener Geräusche beinhalteten. Ihr Höhepunkt war das Russolophon 1924. Keines der Instrumente blieb nach dem Zweiten Weltkrieg erhalten.

Verknoten & Verknüpfen


Antonio Russolo a écrit plusieurs musiques pour les bruiteurs de son frère. C'est lui qui dirigera le concert à Paris en 1921. En 1924, la société Grammofono éditera trois disques futuristes. Sur l'un d'eux (R6919/20) seront produit "Corale" et "Serenata". Même si ces musiques ne sont pas des chef d'oeuvres, ce sont cependant les uniques enregistrements d'origine que nous possédons des bruiteurs de Luigi Russolo.

CORALE d'Antonio Russolo

1'57" (1921)

to load

SERENATA d'Antonio Russolo

2'37" (1921)

to load

PB701 Electric Intonarumori

Wolfgang Spahn
The core of that noise board is the digital delay chip PT2399. It has some OpAmps build in to filter the sound and do the echo. In this application everything that helps to get rid of the noise of the chip itself was avoided, that leads into a self sustainable noise source.
The board is based on a design of the Chaos Looper by Urs Gaudenz from Gaudi Labs and from the Schweizer Gesellschaft Für Mechatronische Kunst - thanks for that!
I added the voltage control of the delay and some extra functions, like the noise on/off, the boost and the mute function to the circuit.
The “echo” could be changed with a potentiometer, the “delay” with CV (0 to 5V) or with a potentiometer. An other Low Pass filter could be changed with the third potentiometer.
The Electric Intonarumori has an audio and an control voltage input, while building the board one has to choose between bus 1 and bus 2 for the audio input and one has to use the other bus for the control input.
The board is an homage and is named after the instrument “Intonarumori” of the Italian Futurist, painter, composer and the author of the manifesto The Art of Noises, Luigi Russolo.