micro-listening workshops

The following are four of David Dunn’s micro-listening transducer designs with short audio examples, as displayed in the exhibition SOUND, curated by Gustavo Matamoros at the Bass Museum of Art in Miami Beach:


micro-listening hydrophone; audio sample: underwater invertebrates

underwater invertebrates – short


Micro-Listening ultrasonic boundary microphone; audio sample: bats, diablo canyon

bats – short


micro-listening insertion microphone; audio sample: pinion engraver beetles

bark beetles – short


micro-listening ultrasonic insertion microphone; audio sample: western harvester ants

harvester ant – short


Micro Listening Workshop
DAVID DUNN, composer

The Micro Listening Project is an interdisciplinary art and science strategy for increasing the monitoring of our environment through sound. It hopes to provide new inexpensive technologies that can facilitate an increase in our collective environmental sensitivity and discovery of unknown natural and human made phenomena, providing novel tools for sound artist, and contributing towards practical environmental problem solving

The project focuses upon the design of inexpensive but highly effective audio transducer systems for bioacoustic and sound art monitoring of otherwise hidden aspects of our auditory environment that are not audible through the use of conventional microphones. In addition to these technological advancements for listening, the project seeks to document a wide diversity of sound worlds for both demonstration of the transducers and general aesthetic revelation of our environment. Precise instructions on how to use and construct these devices will be part of this workshop. The devices are designed to allow as wide a distribution of their use as possible by both amateurs and professionals


micro listening vibration microphone
david dunn addresses workshop participants

Ideally, the workshop lasts 8 hours over two days which allows for an in-depth exploration of the potential uses of each transducer as well as discussion about alternative variations on each design.  The presentation is filled with a great variety of recorded examples that demonstrate the qualities and capabilities of the micro-listening tools.  For more information or to schedule a workshop in your area, write to:  info at subtropics.org


up to 15 participants


To listen to an NPR story about other David Dunn ultrasonic microphone designs on All Things Considered: CLICK HERE!



To listen to a recent isaw(gm) recording of marine life made in
New Smyrna Beach, Florida, using this hydrophone routed
through David Dunn’s microlistening preamp: CLICK HERE!