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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I am the executive director of FishEye Collaborative, a non-profit leveraging emergent underwater listening technologies to grow our understanding of marine ecosystems. I am also the president of FishEye Acoustics, a marine tech company developing a new class of acoustic sensors.
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Clemson University
Seabird ecologist at Clemson University, South Carolina Cooperative Fish and Wildlife Research Unit. Co-chair of Caribbean Seabird Working Group.
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I am biologist, I have studied wild life and ethnobiology at Amazon and caimans in Brazil
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Wildlife Acoustics
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Michigan Natural Features Inventory (MNFI)
Wildlife ecologist
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Researcher at Forest Research Institute Baden-Wuerttemberg, Passive acoustic monitoring of woodcock
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Petnerup
Animal tech startup founder
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Zoological Society London (ZSL)
Monitoring & Technology Lead, Conservation & Policy, ZSL
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Prospective PhD students with a background in acoustics and an interest in Arctic ecology are encouraged to email Michelle EH Fournet
16 November 2023
Sarab Sethi is looking for a PhD student (Sept 24) to investigate real time insect pollinator monitoring with acoustics. Sensor design, ML, lab and field experiments, and more !
16 November 2023
Join the Rainforest Connection & Arbimon team to develop software for biodiversity monitoring!
14 November 2023
Yale University & Map of Life Rapid Assessments - XPRIZE
8 November 2023
Baker Consultants has released new ecoacoustic research assessing the benefits of using automated detectors alongside transect bird survey methods.
30 October 2023
Article
Five #tech4wildlife people, projects and updates that caught my attention this month. This issue is a naturetech, biodiversity startup edition! Featuring a living map of the biodiversity startup scene, is nature data...
27 October 2023
Careers
The Institute for Bird Populations (IBP) seeks a California-based acoustic monitoring specialist to collect, manage, and process avian acoustic data from multiple research and conservation projects across California...
26 October 2023
With the rising threats to biodiversity such as wildlife crime, climate change and human-wildlife conflict today, wildlife monitoring technologies have become vital to study movement ecology, behaviour patterns, changes...
25 October 2023
To study song evolution in time and space, we will use individual acoustic monitoring (IAM) - a non-invasive method that allows the identification of individuals based solely on their vocalisations. In this project, we...
20 October 2023
The Marie Skłodowska-Curie PhD Fellowship in Bioacoustic AI for wildlife protection. The PhD position advertised here will be based at the KU Leuven Electrical Engineering Department (ESAT), under the supervision of...
20 October 2023
FLOATERS: Using individually distinct vocalizations to estimate breeding and non-breeding population of a species. Apply for the fully funded PhD position now!
20 October 2023
The Kitzes Lab at the University of Pittsburgh (http://kitzeslab.org) is seeking applications for a Postdoctoral Scholar, Research Assistant, and Graduate Student to work in the areas of bioacoustics, quantitative...
28 September 2023
June 2024
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43 Products
Recently updated products
Description | Activity | Replies | Groups | Updated |
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Hi all,I'm curious to hear experiences/thoughts on mounting microphones in potted instrument housings that will receive a fair amount of... |
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Acoustics | 16 hours 56 minutes 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 day 23 hours ago | |
Wow.. Really exciting to see this effort. Congratulations on the award!I have been interested in this subject for a long time, as we have elephant-human conflicts in plenty in... |
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Acoustics | 6 days 22 hours ago | |
Hello!Long time, no update. @StephODonnell suggested I post here with my thesis and some reflections. ---------------------------------------------------------TL;DR... |
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Acoustics | 2 weeks 2 days ago | |
I think I've landed on the Wildlife Acoustics Song Meter Mini Bat 2 for now, but I'm definitely interested to see how this cheaper tech progresses |
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Acoustics | 2 weeks 3 days 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, Biologging | 2 weeks 3 days 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 | 2 weeks 3 days 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 | 2 weeks 3 days ago | |
Oh wow, thank you so much!!!I will keep that four advices in mind! |
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Acoustics | 2 weeks 4 days 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 | 2 weeks 5 days 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, Biologging, Climate Change, Conservation Tech Training and Education, Data management and processing tools, Emerging Tech, Open Source Solutions, Protected Area Management Tools, Sensors, Software and Mobile Apps | 2 weeks 5 days 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 | 2 weeks 6 days ago |
Marine Mammals Research Association (DMAD) and ACCOBAMS Joint Training Course
4 May 2023 1:00pm
Soundscape analysis using eco‑acoustic indices for the birdsbiodiversity assessment in urban parks (case study: IsfahanCity, Iran)
2 May 2023 11:52pm
[Recordings Now Available!) EarthRanger User Conference
27 April 2023 5:52am
Software for marine acoustic monitoring?
25 April 2023 11:53pm
Congo Basin activity?
30 March 2023 9:14pm
HydroMoth GroupGets Campaign is Open
17 April 2023 8:44pm
How do I get started with Bird Audio processing and classification?
17 April 2023 9:11am
World Oceans Passive Acoustic Monitoring Day
14 April 2023 4:36am
Project Manager, Rainforest Connection (RFCx)
12 April 2023 1:09pm
The 59th Annual Meeting of Illinois Chapter of The Wildlife Society
12 April 2023 5:24am
Accessible acoustic analysis tech for blind scientist - ideas?
31 March 2023 10:52pm
6 April 2023 10:49pm
Hey Kate I don't have any explicit ideas at the moment but will think on it - such a cool concept! I wonder if there's some form of tactile spectrogram that you could develop, or a way that you could have them try to draw a representation (so assign some shape) of what they are hearing as a means of classification a call and then clustering those shapes? There's a way of creating an image using foam and paper I believe so they could have a tactile record of those shapes. Guess it depends what you want to the quantitative results to be. Super cool that you are looking for greater accessibility in acoustics!!!
7 April 2023 1:40am
Hi Kate,
We've developed a screen-reader workflow for a classification problem on our "Ocean Voices" Zooniverse project, which simply asks folks to label sounds based on what they hear and omits the spectrogram altogether. There are lots of screen-reader users who are active in the Zooniverse Talk forums, so they may have valuable input for you as well.
Once a person has labeled data, I wonder if they could run automated detectors over the data in Pamguard, calculate features (using something like the R package PAMpal), and then use the BrailleR package to explore the statistics in R. This article has a pretty interesting summary about statistical software for visually impaired folks - might not be news to your student, but I thought it was pretty cool.
I'm very curious what our friends who are visually impaired might notice in the acoustic data. Best of luck to you and your student!
Cheers,
Anne
7 April 2023 5:11pm
Hi Kate- ARISTA Lab (Advanced Research in Inclusion & STEAM Accessibility) is actively working on this through their eclispse soundscape project. I recommend reaching out to MaryKay to get the latest on their project.
Megan
Who's going to ESA in Portland this year?
31 March 2023 9:27am
4 April 2023 9:58am
That sounds great. I think you should encourage people to bring a bit of tech with them, can be a good conversation starter/ice-breaker
4 April 2023 4:04pm
Good idea! I've got a ransom assortment of different acoustic recorders I can bring along
5 April 2023 11:58pm
Indeed, I'll be there too! I like to meet new conservation friends with morning runs, so I will likely organize a couple of runs, maybe one right near the conference, and one somewhere in a nearby park where we can look for wildlife. The latter would probably be at an obscenely early hour, so we can drive somewhere, ideally see elk (there are elk within 25 minutes of Portland!), and still get back in time for the morning sessions.
Updates about Arbimon for Ecoacoustics - free, cloud based analytical tool
31 March 2023 11:09am
31 March 2023 3:43pm
Yes please reach out with any questions on acoustic monitoring, Arbimon, RFCx, etc.!
The WILDLABS Variety Hour: March 2023 - YouTube
30 March 2023 4:04pm
If you missed our Variety Hour show yesterday, do not fear! It's already live on youtube for your viewing pleasure. Enjoy!
Global shortage of Raspberry Pis - What are the alternatives
3 November 2022 10:27am
28 March 2023 9:37pm
Have you considered Arduinos?
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
In this radio episode, we speak to Alex Rogers, Professor of Computer Science at the University of Oxford. We discuss how Alex's research team developed the acoustic recording device AudioMoth, how low-cost technologies can democratise biodiversity monitoring, and how sensing technologies can lead to certain species and environments being monitored more than others.
Interviewers: Max Ritts and Michelle Westerlaken
Producer: Harry Murdoch
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:
@KitzesLab Did you try comparing different SD card sizes to check if that influenced battery life?
— Lucille Chapuis (@sharkslikejazz) February 26, 2023
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
25 April 2023 5:08pm
greetings!
i sent you a PM regarding this, feel free to contact me however is most convenient for you -
regards,
chris