Acoustic sensors enable efficient and non-invasive monitoring of a wide range of species, including many that are difficult to monitor in other ways. Although they were initially limited in application scope largely due to cost and hardware constraints, the development of low-cost, open-source models like the Audiomoth in recent years has increased access immensely and opened up new avenues of research. For example, some teams are using them to identify illicit human activities through the detection of associated sounds, like gunshots, vehicles, or chainsaws (e.g. OpenEars).
With this relatively novel dimension of wildlife monitoring rapidly advancing in both marine and terrestrial systems, it is crucial that we identify and share information about the utility and constraints of these sensors to inform efforts. A recent study identified advancements in hardware and machine learning applications, as well as early development of acoustic biodiversity indicators, as factors facilitating progress in the field. In terms of limitations, the authors highlight insufficient reference sound libraries, a lack of open-source audio processing tools, and a need for standardization of survey and analysis protocols. They also stress the importance of collaboration in moving forward, which is precisely what this group will aim to facilitate.
If you're new to acoustic monitoring and want to get up to speed on the basics, check out these beginner's resources and conversations from across the WILDLABS platform:
Three Resources for Beginners:
- Listening to Nature: The Emerging Field of Bioacoustics, Adam Welz
- Ecoacoustics and Biodiversity Monitoring, RSEC Journal
- Monitoring Ecosystems through Sound: The Present and Future of Passive Acoustics, Ella Browning and Rory Gibb
Three Forum Threads for Beginners:
- AudioMoth user guide | Tessa Rhinehart
- Audiomoth and Natterjack Monitoring (UK) | Stuart Newson
- Help with analysing bat recordings from Audiomoth | Carlos Abrahams
Three Tutorials for Beginners:
- "How do I perform automated recordings of bird assemblages?" | Carlos Abrahams, Tech Tutors
- "How do I scale up acoustic surveys with Audiomoths and automated processing?" | Tessa Rhinehart, Tech Tutors
- Acoustic Monitoring | David Watson, Ruby Lee, Andy Hill, and Dimitri Ponirakis, Virtual Meetups
Want to know more about acoustic monitoring and learn from experts in the WILDLABS community? Jump into the discussion in our Acoustic Monitoring group!
Header image: Carly Batist
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Researcher at Forest Research Institute Baden-Wuerttemberg, Passive acoustic monitoring of woodcock
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Zoological Society London (ZSL)
Monitoring & Technology Lead, Conservation & Policy, ZSL
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PhD Student working on acoustics and hunting in tropical forests
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Dzanga-Ndoki national park biodiversity monitoring
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- @HannahJasinski
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Orthoptera conservationist bioacoustics
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- @amykukulya
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Amy Kukulya is an ocean tech innovator and conservationist from the US. She has captured thrilling footage of megafauna using novel biologger and oceanrobotCams—SharkCam, TurtleCam featured across the globe on mainstream media outlets.
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Article
Authors: Danielle I. Rappaport, Anshuman Swain, William F. Fagan, Ralph Dubayah, Douglas C. Morton
29 May 2022
Community Announcement
Apply now: Women in Conservation Technology Programme, Kenya
Stephanie O'Donnell
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Introducing the WILDLABS On the Edge Fellows
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Article
GroupGets: AudioMoth Underwater Case
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Don't miss your chance to order the AudioMoth Underwater Case through GroupGets! This campaign is for a waterproof case designed specifically for AudioMoth version 1.2.0 (without the 3.5mm socket), and for use at depths...
11 January 2022
Article
New Paper: HydroMoth Testing
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Monterey Bay Aquarium Research Institute (MBARI)
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Funding
Opportunity: μMoth v1.1 Group buy
Open Acoustic Devices
GroupGets has a Group buy campaign for a μMoth v1.1(Round 2), that runs till Sat, 06 Nov 2021 12:55:00 PDT. The μMoth v1.1 goes for a Single-unit price of $99.99 + shipping.To join this buy, kindly visit this page
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Article
This article outlines how acoustic monitoring of bird species provides a means to study ecosystems with minimal disturbance and over wide areas. Birds are excellent indicator species, therefore, monitoring their trend...
21 October 2021
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GroupGets: μMoth Now Available
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The new μMoth is now available on GroupGets! These units are going quickly, so join the order quickly to be among the first to try the world's smallest full-spectrum acoustic development board! Join the GroupGets order...
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New Papers: Remote Sensing in Ecology and Conservation
Zoological Society London (ZSL)
ZSL's Remote Sensing in Ecology and Conservation journal has released new research for early view before inclusion in an issue. See the full list of recent open access research papers on RSEC.
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Wildlife Acoustics
61 Products
| Description | Activity | Replies | Groups | Updated |
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| If you search Digikey for a 'strain relief' you should be able to find a rubber grommet that will hold that mic without any additional machining. A blob of silicone will adhesive... |
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Acoustics | 11 months 4 weeks ago | |
| Thanks Carly! I had reviewed some of the help files, but clearly not the right ones!My email is deanc5697@my.uwstout.edu |
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Acoustics, Software Development | 11 months 4 weeks ago | |
| Hi Tabitha, What recording settings were you using when you saw these differences? I've measured the consumption across some different firmware versions and I can't see any... |
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Acoustics | 1 year ago | |
| Hello!Long time, no update. @StephODonnell suggested I post here with my thesis and some reflections. ---------------------------------------------------------TL;DR... |
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Acoustics | 1 year ago | |
| Hi Jesse,For a material to be acoustically transparent (in air), the speed of sound in the material times its density must match that of air. Realistically, any solid... |
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Acoustics, Animal Movement | 1 year ago | |
| Hi Steph, We appreciate the support! Thanks for the tag and your help managing the community!Patrick |
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Sensors, Acoustics, Conservation Dogs, Emerging Tech, Open Source Solutions | 1 year ago | |
| Hi Sol,If the maximum depth is 30m, it would be worth experimenting with HydroMoth in this application especially if the deployment time is short. As Matt says, the air-filed case... |
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Acoustics, AI for Conservation, Data management and processing tools, Emerging Tech, Sustainable Fishing Challenges | 1 year ago | |
| Oh wow, thank you so much!!!I will keep that four advices in mind! |
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Acoustics | 1 year ago | |
| You won't get any audio if you don't allow enough time for the hydromoth/audiomoth to write. So when you do a continuous recording you need to experiment a little. I'm sure there... |
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Acoustics | 1 year ago | |
| Congratulations! My first hydromoth was just arrived yesterday and so excited! Looking forward for the update from your project!!! |
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Acoustics, Animal Movement, Climate Change, Conservation Tech Training and Education, Data management and processing tools, Emerging Tech, Open Source Solutions, Protected Area Management Tools, Sensors, Software Development, Latin America Community | 1 year ago | |
| If you have the resources, I would suggest testing the sensitivity and directionality of the system at relevant frequencies both with and without an external mic, and let the... |
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Acoustics | 1 year ago | |
| Totally agree.Inititally sceptical until I saw Helena and Graeme were involved.MJ |
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Acoustics, Citizen Science, Community Base, Human-Wildlife Conflict | 1 year 1 month ago |
