Bio-Acoustic Installation · Environmental Art

The Listening Tree

Ongoing · In-Situ Environmental Installation

Trees are acoustically active organisms. The Listening Tree makes their inner life audible: contact transducers attached to living trunks transform the wood itself into a speaker, letting you hear the clicks and pops of cavitation, the sound of a body pulling water upward against gravity, constantly, silently, until now.

The Listening Tree, person leaning ear close to tree bark, contact transducer visible. Outdoor festival setting, soft daylight.
Status Ongoing, available for commissioning
Context Environmental Art, Acoustic Ecology

What you hear is real. Trees pull water from root to leaf through tubes so narrow the pressure involved is almost impossible to imagine, like sucking through a straw taller than a building. Sometimes the water column breaks. A tiny air bubble forms and collapses in the same instant. The tree clicks.

Scientists call it cavitation. It happens constantly in living trees, a continuous acoustic record of a body under pressure, working. The Listening Tree makes those clicks audible by attaching contact transducers to the trunk and using the wood itself as a resonating chamber.

Close-up, hand resting on bark near a contact transducer, outdoor daylight. Future Limerick Festival 2022.
Listener with eyes closed, leaning against tree trunk, headphones visible. Contemplative, quiet.

Nothing is added. No score, no processing, no field recordings layered in. What comes through is what the tree is doing at that moment: the specific tension in that trunk, the water demand of that canopy, the dry or wet conditions of that day.

The installation can be configured for contemplative listening through headphones, or as a more overtly musical encounter through a spatial speaker array. Its character changes with the weather, the season, and the tree.

Detail, contact transducer mounted flush to bark with bio-compatible adhesive.
Credits
Transducer System & Installation Luis Berna Moya
Scientific Collaboration Botanists & Acoustic Ecologists

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