Warble Buoys
2026 - WIP
Site-specific sound installation
Sculptures for the Danube Delta, Borosilicate Glass & Joule Thief Circuitry
Part of Danubian Filaments,
Project produced in residency at
Ars Electronica, through
S+T+ARTS Aqua Motion
presented at Sf. Gheorghe, Danube Delta
in the framework of Hidrotopias
project produced by Qolony through AFCN.
Mounting assistance & Boat logistics:
Razvan Crimschi
Borosilicate Glass Production: Adrian Sistem
Project coordination: Diane Pricop
Video Documentation: Andreea Udrea
Special Thanks & Research Advice: Stefan Constantinescu, Tudor Vreme Moser
Warble Buoys trace invisible water materialities in a discreet intervention on the Danube Delta. Electrochemical sound bodies transduce shifting metabolic changes found in freshwater chemistry to subtle rhythmic textures. As they float, encounters between metal, freshwater, oxygen, and sediments create evolving sound patterns, making the wetland's inner chemistry audible.
Inspired by the galvanic principles of historical saltwater batteries¹, as well as the Method and Apparatus for generating Electricity² from freshwater, the work constructs sound buoys as electrochemical capacitors. Rather than relying on conventional power sources, a submerged ORP-like sensor made of metal plates listens to the water's electrical activity.
The Delta becomes part of the circuit. Oxygen concentration, water movement, atmospheric exposure and heavy metal concentrations all generate and modulate very small electrical currents. Equilibrium and stillness kill voltage while turbulence resonates into sound. Minimal components turn these tiny pulses into oscillations. The sounds appear organic, modulated by the evolving chemistry and circuitry instability. Glass funnels amplify the subtle rhythms that emerge, blending them in the natural soundscape.
Between artefact, instrument, and sensing probe, Warble Buoys operate as temporary assemblages. Activated by on-site waters and their sediments, the installation drifted with the Delta for several hours as a performative action in proximity to Sf. Gheorghe village. During this intervention, a Savi's warbler song made it impossible to tell which sounds came from which body.
1. Elektrotechnisches Experimentierbuch, Eberhard Schnetzler, Zweiter Vortrag. Der Galvanische Strom, 1909
2. Method and Apparatus for Generating Electricity, William T. Clark, Patent N. 4,153,757, 1979
Disclaimers
'S+T+ARTS AQUA MOTION is co-funded by the European Union under the STARTS – Science, Technology and Arts initiative of DG CNECT (Agreement Number LC-03568055). Views and opinions expressed are however, those of the author(s) only and do not necessarily reflect those of the European Union or DG CNECT. Neither the European Union nor the granting authority can be held responsible for them.'
'Hidrotopias is co-funded by the Romanian National Cultural Fund Administration (AFCN).
The project does not necessarily reflect the views of the Romanian National Cultural Fund Administration. The AFCN is not responsible for the content of the project or for how the project’s results may be used. These are entirely the responsibility of the grant recipient.'