Developing a low-cost open-source acoustic sensor for coral health monitoring
Supervisor
Suitable for
Abstract
AudioMoth (https://www.openacousticdevices.info) is an open-source low-cost acoustic recorder that is widely used for environmental
monitoring. Most recently it has been deployed with partners to monitor the health of coral reefs (https://zslpublications.onlinelibrary.wiley.com/doi/10.1002/rse2.249)
by using existing analysis software to post-process recordings in order to count individual invertebrate snaps and to extract
‘acoustic indices’ which measure the complexity of the soundscape. In this project, you will attempt to avoid this post-processing
stage by calculating the relevant parameters of interest directly on the AudioMoth’s 48MHz ARM Cortex M4F processor. This
will reduce the energy consumption of the device, facilitating longer deployments on standard batteries, and will avoid the
cumbersome handling of large audio files. You will work with the end-users to understand their requirement, and you will develop
the appropriate device firmware and associated configuration tools to allow a trial deployment of the solution to be performed
toward the end of the project.