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Acoustic Monitoring / Feed

Bioacoustic monitoring is one of our biggest and most active groups, with members collecting and analysing acoustic data from every type of wildlife, from birds and bats to big cats, and even reptiles!

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HydroMoth GroupGets campaign

It continues to be difficult to source microcontrollers due to global supply chain issues, but Open Acoustic Devices have managed to source a small supply for an initial...

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1.5 TB micro SD

Now let us use this monster 1.5 TB microSD Card with our audiomoth ;-) ...

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If only I didn't work in rainforests where canopies preclude solar panels.... *sigh* lol

Went down a rabbit hole reading the battery threads on here. It strikes me that gravity batteries might be a good solution in rainforests. String a line over the highest branch you can and then raise as much weight as you can. I'm unfamiliar with the power requirements of camera traps / audiomoths but I might do some napkin calcs if i'm bored this week. @carlybatist 

Hmm 20kg raised 5m would only buy you less than half an AA battery assuming 100% efficiency. Lame, so much for that idea.

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Acoustic multilateration for gibbons

We're in the process of adjusting our acoustic multilateration (passive localisation) from working on wolves, to working on gibbons. We've been helping FFI monitor the critically...

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Awesome stuff!! Interested in what kind of recorders you are using and how are you sync'ing them for the TDOA?

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article

New papers on passive acoustic monitoring

PAM & transfer learning, defining occupancy in surveys, effects of anthropogenic noise on fish, soundscapes to track ecosystem recovery, detecting sharks with echosounders, using PAMGuard to detect marine mammals 

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Bird Sounds Global web portal

A new web portal for annotating bird sounds has been opened called Bird Sounds Global (BSG). It is part of project LIFEPLAN, and its key objective is to develop global, automated software for bird sound identification.

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Really cool platform! Will definitely add it to our next update of the Conservation Tech Directory. Curious, could there be cross-platform integration with something like Xeno-...
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Bird Acoustic Solution 

Hello Folks, I work with the Dept of Conservation, New Zealand (NZ) government. We are eagerly looking for a Machine learning or AI solution to identify the NZ birds (and...

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There are a bunch of different options for detecting calls in audio data, from proper statistical platforms such as R/Python, to bespoke software such as Arbimon, Kaleidoscope & Raven. Edge Impulse also an online ML model-building interface, but this is more focused on then deploying the models onto devices for edge computing. Arbimon has template matching features that are a good way to start finding detections to build a training dataset, I have used it for this in the past. Arbimon is online & free. Kaleidoscope has a clustering function which is again a good first step to start picking out the low-hanging fruit of detections so to speak. It's a desktop app, but this is not free ($400/yr). Raven also has some automated features -  template & band-limited entropy detectors. It's also a desktop app and not free ($100-$800 depending on 1-year or permanent license and whether non-profit or not; not sure where a government agency would fit into that). 

There is always the ubiquitous split between biologists who traditionally are taught to use R and tech/computer folks who are taught to use Python, but for ML, Python's ecosystem is really well set up. Not sure what the level of programming you/your dept has, but there are a TON of free resources online for learning it if you were interested.  

Relevant Python bioacoustics packages potentially of use - Acoustic_Indices, scikit-maad, Ketos, OpenSoundscape (as well as the obvious ML ones such as TensorFlow)

Some R packages as well -  soundecology, bioacoustics, monitoR, warbleR, gibbonR

@tessa_rhinehart has created a fabulous list of bioacoustics software that you can find here: https://github.com/rhine3/bioacoustics-software

You can also turn to articles that have already done similar things and reach out to the authors to discuss their methods. I've got a (totally un-exhaustive) list of papers on passive acoustic monitoring, with a section on 'analyses' that you might find useful to start with; I can email it to you if you'd like. Working on a PAM training materials page on my website that it will be available at shortly as well (will post the link to Wildlabs when it's live!).

Hope this is helpful!  

Hi, 

Look at this publication (below) and download the BirdNet app. The computer code is provided to train ML algorithm that will allow  you to tailor the model with your own data. 

 

Thanks, Mrigesh 

 

Thank you @carlybatist , @Freaklabs and @MK . The inputs are very useful and I am progressing on my project based on that. Appreciate a lot. 

 

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Careers in Bioacoustics

I'm a PhD student studying whale acoustics and am beginning to plan for the next step of my career after graduating. As a student I've met a lot of people who went on to academic...

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Hi Eric, 

Dropping in a reply we had over on Linkedin here. Annoyingly I can't do a snazzy embed of the comment - will fix that!

Anton Baotic shared: 

I guess it depends on whether you want to stay in academia or go into industry. Overtime working hours are preprogrammed in academia without appropriate compensation. Austrian funding agencies pay a reasonable wage. I believe it could be improved.
I've always enjoyed working with exotic animals like elephants, giraffes, and giant pandas, as well as the collaborative and international work. This experience shaped me into the person I am today, and I don't want to missany of it. Personally, I believe that bioacoustics has not received the respect that it deserves, including the bioacousticians who put their lives into their projects. I am convinced that bioacoustics can be a valuable tool in conservation. Throughout my career, non-academics and the tech industry have approached me numerous times about using bioacoustics as a conservation monitoring tool. And I frequently feel stepped on when asked to provide material without appreciating the work behind the data, especially when it comes from economically-driven institutes that are unwilling to compensate. The fact is that the best conservation Technology is meaningless without solid basic data.
In retrospective, a more tech-oriented educational background would have been good!

Steph

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