A Sonora, 2021
Raspberry pi, arduino, ldr sensor, ultrasonic sensor, pir sensor.
Programming in reaper.

"A Sonora" is an acoustic sculpture. We listen to a 5 min piece created in collaboration with Mariana Carvalho (BR) and Sellu Herraiz (ES) that reveals a sound-bass that transpass the digestion of the human body. Through three different sensors, we incorporate words, noises, invitations to a physical interaction or we activate a motor with a contact microphone that reveals the internal noise of the machine.

* This work is part of a series called “As Automatas”, in which each sculpture, virtual or real, manifests a different “emotional performance”. There is a formal line common to all the sculptures, as they are positioned on the wall, are activated by the human presence and identify themselves as feminine, which is why their names are preceded by the article “a”.

Collaborators: Mariana Carvalho (BR), Nikolas Gomes (PT) and Sellu Herraiz (ES).

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Creation and direction

Joana Burd


Sound design

Nikolas Gomes Ferranddis



Bruno Fernandes and Bê Smidt

Image capture and editing Carina Macedo 


Texts read by interpreters are adapted from the book

Walter Smetak (2019). O enxerto do Takaká e outros textos. Editora: Edufba. Edição: 1ª. ISBN: 978-85-232-1832-4.

The laugh without laughter

The laughter without laugh
The cried laugh

The laugh of ignorance

The laugh replacing the speech

The laugh replacing the answer

The answer replacing the laughter

As artists, we transform “silence” into images and sounds.

Images and sounds transform the artist into silences.

Silence is the great source of the single cause.

If there were no rumors, the silence would be very boring.

Rumors are the faithful reproduction of silences.

We are losing sight of the silences.

We create machines that are much more sensitive than our human senses.

So; we put "silent mode" on the machines so that they do not disturb our silence.

Because machines also have their own lives: the noise.

The “human” machine, on the other hand, is quieter, does not perceive its inner noise.

In this digital world we have new possibilities for speech and new formats of silence.