ECHOSONAR
Activating the acoustic of the Coal Loader tunnel and echolocating the environment in the same way native microbats do, while contributing to the sustainability of the place.
Artist, Marta Ferracin, and children visitors interacting with Echosonar (details)
Echosonar overview, Tunnel 1, the Coal Loader, Waverton, (details)
Echosonar video recorded during North Sydney Art Prize 2019 exhibition, courtesy of the artist and visitors
Echosonar (2019), is an immersive electroacoustic installation that explores echolocation phenomena by reproducing a bio sonar navigation and foraging system that bats use to sense their habitat and locate prey.
Echosonar is inspired by a protected species of microbats, the Miniopterus scheibersii oceanensis or Eastern Ben-wing Bat, that roosts on the ceiling of Tunnel 4, one of the Coal Loader tunnels at Waverton.
The microbats make an invaluable environmental contribution to the surrounding habitat by monitoring insect populations. The microbats locate their prey by emitting ultrasonic calls and responding to the returning echo that bounces off insects and other solid forms.
Echosonar senses the surrounding tunnel space by responding to the environment and to the presence of vibrant, lightweight, solid objects made of resonant material, such as metallic Slinky springs and magnets. Bass and parametric speakers are used to transmit digitally manipulated recordings of microbats and various low acoustic frequencies to reproduce an echolocation experience.
When the acoustic beams encounter the solid surface of the placed objects, they bounce back and emit an individual vibration. The perceived sound appears to be coming solely from the physical objects themselves.
While walking through the space, the viewer is invited to echolocate the environment by listening for the reflected sounds that are subtly emanating from the quivering placed objects. The overall experience becomes a constantly changing soundscape transmitted externally as subtle waves into human ears or internally as bodily perceived sound when the participants cross through the acoustic beams.
By exploring and communicating with the environment on a deeper level like bats do, the participants can discover and activate new senses, such as auditory and visual information processed as internal and external sonic waves. Everybody can become a participant and portal of this acoustic wonder.
With Echosonar, Ferracin explores the ways in which the natural environment increasingly exhibits its own material agency, which plays an important role in the eco-sustainability of the planet. Ferracin’s artworks activate phenomenological experiences and expand environmental awareness while also providing an opportunity for reflection on what it means to be a sentient being in the 21st century.
WINNER Site Specific Award
Electroacoustic immersive installation
Artwork details
| Artwork | Echosonar(2019) |
| Material | Metal original Slinkys, magnets, 21 bass speaker cones, laptop computer, 8 channels audio interface, 2 channels analogue sound converter, 3 parametric speakers, soundscape, amplifiers and led lights |
| Dimensions | 400(L) x 240(W) x 270(H) cm |
| Duration sound | 00:30mins |
| Exhibition |
North Sydney Art Price 2019
Tunnel 1, The Coal Loader, North Sydney Council, Waverton, NSW, AU 2 March - 17 March Artist talks 9 and 16 March |
| Winner award | North Sydney Art Price site-specific Award
Australian Catholic University (ACU) North Sydney Art Prize The Coal Loader - Centre for Sustainability |
| Links |
Art Almanac exhibition catalogue (pag 33 n.89) Echosonar mp3 single track - recording in situ (extract) - Soundcloud |
Credits
Sound Tracks
Mystacina microbats bioacoustics recording courtesy of Professor Stuart Parsons, School of Earth,Environmental and Biological Sciences, Queensland University of Technology
Sound design
Trevor Brown
Activation design
Chris Daniel
Photos and video
Corey Rankin; courtesy of the visitors
Provision of the Coal Loader - Tunnel 1
North Sydney Council
© Marta Ferracin 2025 Website by Natalia
Installation assistant Christopher Verheyden