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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Biologist from the UNA-Paraguay. Currently pursuing a PhD in Ecology at UAM, focusing on developing innovative biodiversity monitoring techniques to improve the understanding of amphibians assemblages.
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We strive to shine a light on the achievements of bioacoustics research in Africa. We work towards equal representation and access to crucial learning, training, and networking opportunities in bioacoustics in Africa.
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My research focuses on using Next-Generation Sequencing (NGS) to study endangered species, including carnivores, chiropterans (bats), and lizards, as well as their microbiomes.
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- @shashiBCIT
- | Shashikant
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- @Markbowler
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University of Suffolk
Wildlife distributions and the effects that human activity has on populations. Spatial ecology of Amazonian mammals through audio and camera surveys. Hunter and gun tracking in Peru. Bats in suburban and agricultural landscapes in the UK
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- @mariaptoro
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Biologist from Colombia passionate about behavioral and evolutionary ecology, specializing in amphibians. My research explores animal communication and how environmental factors shape behavior and adaptation.
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A chemist by training and enthusiast about the environment by nature. Currently finishing my PhD where I was lucky to merge several of my passions such as programming, data analysis, aquatic ecology and analytical chemistry.
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- @limburan
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Bat Conservation Trust
Research Scientist at Bat Conservation Trust
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- @Janny_gonzalezs
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Biology student at Universidad de los Andes | Working in Passive Acoustic Monitoring of birds using autonomous recording units in Colombia's Natural Reserves
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Community Announcement
WILDLABS Community Call Recording: Rainforest X-PRIZE
WILDLABS Admin
Our second WILDLABS Community Call took place on April 1st to continue the discussion started by Ben Tregenna in our Data Science group, in which he suggested the idea of submitting a collaborative entry to the X-Prize...
30 March 2020
Article
Trapped inside during the COVID-19 quarantine and looking to engage with conservation science without leaving your desk? Citizen science projects like those on Zooniverse offer a great opportunity to impact scientific...
18 March 2020
Article
Machine learning is rapidly expanding as a useful field research tool, but its complexity can intimidate even seasoned tech conservationists. Edge Impulse aims to make machine learning solutions accessible,...
16 March 2020
Article
#Tech4Wildlife 2020 Photo Challenge In Review
WILDLABS Team
2020 marked our fifth year holding our annual #Tech4Wildlife Photo Challenge, and our community made it a milestone to remember. Conservationists took to Twitter last week to share their best high-tech snapshots from...
4 March 2020
Article
Listening to Nature: The Emerging Field of Bioacoustics
WILDLABS Team
Researchers are increasingly placing microphones in forests and other ecosystems to monitor birds, insects, frogs, and other animals. As the technology advances and becomes less costly, proponents argue, bioacoustics is...
24 February 2020
Article
Technology lab focused on wildlife protection opens on Ol Pejeta Conservancy
Ol Pejeta Conservancy
Ol Pejeta Conservancy partners with conservation and technology organisations to kick-start a research and innovation centre for wildlife conservation
31 May 2019
Article
Meet the WILDLABS TECH HUB Winners
WILDLABS Team
In February, we released an open call for the WILDLABS TECH HUB, offering 3 months of support for solutions using technolgy to tackle the illegal wildlife trade. We were overwhelmed by an incredible 37 submissions,...
13 May 2019
Article
#Tech4Wildlife Photo Challenge: Our Favourites from 2019
WILDLABS Team
Happy World Wildlife Day! To celebrate, this week we've asked our community to share photos showing how they are using tech in the field or the lab, using the #Tech4Wildlife hashtag.
3 March 2019
Article
Getting up close and personal with Antarctica's orcas
WILDLABS Team
In this case study, Science Reporter Jamie Morton tells the story of how Kiwi scientists are teaming up with a local underwater robotics company to gain world-first insights into the lives of whales in Antarctica.
4 February 2019
Article
Monitoring Ecosystems through Sound: The Present and Future of Passive Acoustics
Ella Browning and 1 more
As human impacts on the world accelerate, so does the need for tools to monitor the effects we have on species and ecosystems. In this article, Ella Browning and Rory Gibb share insights from their recent review paper...
4 December 2018
Article
In this case study, conservation ecologist Ayesha Tulloch takes us behind the scenes of her recent paper, which came out in Nature Ecology & Evolution earlier this month. In this paper, Ayesha and her team present a...
20 August 2018
Article
The 2018 Ecoacoustics Congress Wrap-up
Anthony Truskinger
Last month, the 2018 Ecoacoustics Congress was held in Brisbane. Bringing together scientists, natural resource managers, industry and artists, participants explored the ways that sound can deepen our understanding of...
25 July 2018
June 2025
event
Julia Wiel
July 2025
September 2025
October 2025
event
Vanesa Reyes
November 2025
September 2024
event
Vanesa Reyes
61 Products
| Description | Activity | Replies | Groups | Updated |
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| Okay, super! Really nice thread you started. It’s great to get these insights.With my own experiments, as you mentioned, accuracy is very good within the polygons. But in addition... |
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Acoustics | 6 months 1 week ago | |
| The PCB mount terminals are actually quite robust and paired with a lock washer and something that would better secure the nylon (e.g., a piece of flat grooved plastic to add... |
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Acoustics, Conservation Dogs, Sensors | 6 months 1 week ago | |
| I guess, you know USB digital audio | Android Open Source Project. from which I conclude it should be possible, however, my Android experience is also zero. |
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Acoustics | 6 months 1 week ago | |
| PCBs back, working great but right now a custom firmware build ("force_27"), need to make sure all is well with the standard build. This of course a non-switch version. |
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Acoustics | 6 months 3 weeks ago | |
| Hi Brett, I am interested in developing really low cost multi channel underwater acoustic recorders. Can you tell me a bit more about the board and stuff you were using... |
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Build Your Own Data Logger Community, Acoustics, Camera Traps, Climate Change, East Africa Community, Marine Conservation, Open Source Solutions, Protected Area Management Tools | 7 months ago | |
| These would be infrasound, so no the sealed volume doesn't need to be buried. It only needs to be a few cc total volume for a single element. I found an old poster... |
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Acoustics | 7 months ago | |
| Thanks, we know they are breeding these animals here, I asked, since it's seems to be an expensive hobby, we need to allocate more funding for rural women in entrepreneurship and... |
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Acoustics, Animal Movement, Citizen Science, Human-Wildlife Conflict, Protected Area Management Tools, Wildlife Crime | 7 months 1 week ago | |
| Here is the final, dramatic word. I built a pipistrelle (noisier than a pippyg so a good test) and used non-ceramic capacitors and played with ferrites and 1R resistors. ... |
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Acoustics | 7 months 1 week ago | |
| WildMon, Terra Genesis, The VF Foundation, Thaksin University, and the Wanakaset Symbiosis Network have teamed up on a new project in... |
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Acoustics, AI for Conservation, Community Base | 7 months 1 week ago | |
| This looks awesome! |
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Acoustics | 7 months 2 weeks ago | |
| I would love to see my bat detector designs in use in Africa - drop me a line, let's see if we can get something to happen - I'm pipistrelledetector at gmail dot comhttp://www.... |
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Citizen Science, Acoustics, Conservation Tech Training and Education, Human-Wildlife Conflict | 7 months 3 weeks ago | |
| Hi Phil, Thanks for sharing - this is really interesting work! Seems like a cool integration of ground-based (or ocean-based) data and satellite data, with a community... |
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Geospatial, Acoustics, Camera Traps, eDNA & Genomics | 7 months 4 weeks ago |
The WILDLABS Variety Hour: March 2023 - YouTube
30 March 2023 4:04pm
Global shortage of Raspberry Pis - What are the alternatives
3 November 2022 10:27am
29 March 2023 10:13am
UPDATE: The Banana Pi didnt work out for us as it was not possible to track back all the components and ensure that they were responsibly sourced. The Rock board did work for us and we were able to port our system onto this. We will be rolling out units using this over the summer. It also looks like Raspberry Pis are coming back on line and we were able to secure a bulk order for deliver mid-summer
29 March 2023 10:14am
Yes, but for our needs that are not powerful enough
Exploring storage options for mass data collection
22 March 2023 3:20am
22 March 2023 7:36pm
Hi Adam!
I mostly live within the ecoacoustics space so I'll just speak on the hydrophone part of your request; Arbimon is a free web/cloud-based platform with unlimited storage for audio files. We've got an uploader app as well for mass-uploading lots of files. There's also a bunch of spectrogram visualization/annotation tools and analysis workflows available. It's AWS running under the hood.
I have some experience working directly with AWS & Microsoft Azure, and I've found personally that AWS was more user-friendly and intuitive for the (fairly simplistic) kinds of tasks I've done.
27 March 2023 5:23am
Alex Rogers: Acoustic Devices for Biodiversity Monitoring — Smart Forests Atlas
24 March 2023 12:28pm
Alex Rogers: Acoustic Devices for Biodiversity Monitoring — Smart Forests Atlas
In this radio episode, we speak to Alex Rogers, Professor of Computer Science at the University of Oxford. Interviewers: Max Ritts and Michelle Westerlaken Producer: Harry Murdoch Listen on Apple and Spotify.
Catch up with The Variety Hour: March 2023
23 March 2023 11:09am
Using acoustic monitoring to track infectious disease risk
8 March 2023 1:29pm
Proposals wanted for Innovation in Practice
6 March 2023 10:34pm
USD500 available for your workshop
6 March 2023 1:30pm
AudioMoth and Song Meter Micro battery life tests
16 February 2023 4:09pm
24 February 2023 2:20pm
Hi Justin, looks like the link is not working!
24 February 2023 5:23pm
Should work now - a stray full stop snuck in there!
26 February 2023 2:58pm
Hi Justin,
Dropping in a question you've received over on twitter:
Hi! Nope, this report doesn't test SD card size or any other parameters like read/write speed or brand.
— Tessa Rhinehart (@TessaRhinehart) March 7, 2023
Use of passive acoustic monitoring methods to estimate poaching pressure of European turtle doves in Greece (Ionian Islands)
24 February 2023 12:54pm
The Arbimon newsletter is back!
23 February 2023 11:34pm
New guidance - Good practice for ecoacoustic monitoring
23 February 2023 10:31am
Acoustic monitoring fieldwork positions in Puerto Rico
22 February 2023 2:41pm
Texas Chapter of The Wildlife Society’s Annual Meeting 2023
20 February 2023 10:56pm
Research Assistants in Kitzes Lab
16 February 2023 4:12pm
Developing Two Non-invasive Survey Methods for Freshwater Ecosystems: Environmental DNA and Ecoacoustics
10 February 2023 10:41am
Swift Software Developer - Lab of Ornithology
10 February 2023 10:38am
Research Associate - Machine Learning (Underwater Sound)
10 February 2023 10:19am
Cleaning audiomoth circuit board
17 January 2023 11:42am
28 January 2023 5:40am
I'd also add that if the boards are just dirty or dusty, you can just remove all batteries, then wash with a toothbrush and water. Air dry (or use compressed air which speeds things up greatly) and then spot clean areas that need solvent with isopropanol as Harold mentioned. Also if you don't have access to conformal coating, you can also use a non-conductive clear lacquer. The conformal coating covers all the components and prevents short circuits due to conductive water (ie: salt water) or other contaminants. However if you do use a conformal coating, make sure all cables are connected first and the device is in the exact state that it will be deployed in. Also don't conformal coat the battery connectors since you'll want to change out batteries periodically.
2 February 2023 8:13am
Hi Akiba,
thanks for your this great advice! I used the conformal coating on parts
of the PCB with exposed metal but was has hesitent using it on the "backside" with
all the resistors and transistors. Also what about the "back" of the microfon. Might this side be coated?
Do you have any experience with coatings @alex_rogers
Greetings,
Robin
9 February 2023 9:56pm
Cleaning the water damaged audiomoth boards is in full swing:
Left before, right after cleaning
Technical Officer – IMOS Animal Tracking Facility
7 February 2023 12:30pm
Commercially available connected audio sensors
2 February 2023 3:08pm
2 February 2023 3:55pm
Hi!
I am not aware of any such connected loggers/recorders but they would be nice.
The AudioMoths have been revolutionary in providing audologging at a low cost but they take a lot of "data muling" (carrying SD cards in and out of the field sites) and swapping of batteries.
Cheers,
2 February 2023 7:50pm
Hi Lars, thanks for the response. We are using lots of Song Meter Micro's atm and they have proved to be resilient. Just need something which doesn't involve going on site regularly - but get the data off.
3 February 2023 7:04pm
Rainforest Connection's (RFCx) Guardian devices may be of interest. They are solar-powered and have connectivity options for Wifi, GSM and satellite transfer. They've previously been used for detecting e.g., gunshots or chainsaws (using edge computing) and then sending positive detections/alerts to folks on the ground. RFCx also hosts Arbimon, a free, no-code software platform that facilitates analysis of audio data as well. Happy to chat more if you'd like to talk further about it!
Job: Building a network of conservation tech across continents
2 February 2023 1:50pm
Consultancy opportunity: Wildlife monitoring specialist
31 January 2023 11:26am
AI for Forest Elephants Challenge
25 January 2023 3:34pm
Pandas & Prose with Karen Bakker and David Thau
19 January 2023 11:55pm
Apply Now: AI for Conservation Office Hours
18 January 2023 5:15pm
International Congress for Conservation Biology
16 January 2023 2:53pm
28 March 2023 9:37pm
Have you considered Arduinos?