Acoustics / Feed

Acoustic monitoring is one of our biggest and most active groups, with members collecting, analysing, and interpreting acoustic data from across species, ecosystems, and applications, from animal vocalizations to sounds from our natural and built environment



Does anyone have experience of LABMaker?Has it been good? Bad? Any comments or feedback? We are looking for groups who could help us to manufacture a piece of open hardware. Also...

3 0

Dear Tom, the AudioMoths are being sold via LabMakers (but I do not know if they construct them for them). Have you been in touch with the AudioMoth team?  I am sure they will be able to provide you useful feedback regarding what you are trying to do, and LabMakers.

I have only used them to buy things from them.

Regards, Christos

See full post

Bat Identification Tools Comparison

Hello, does anyone have any experience comparing the results of Bat identification software for large batch processing? I would be processing significant amounts of audio...

4 0

The BTO Acoustic Pipeline is free to use up to 100 GB / year (about 50 nights of triggered bat recording). I am not un-biased to comment on performance because I built the classifiers that are used by the Pipeline, but I would strongly recommend that you take a dataset (with everything - not just pulling out the best bat recordings) that you have taken time to manually check, put it through each option that you are considering, and critically compare the performance. 

In particular, the largest differences in performance between a good and more poorly performance classifier will be for some of the more cryptic species, so particularly focus on e.g. Myotis species, Plecotus species - if you are in an area where Brown and Grey long-eared bat are present. See how well the approach is able to identify multiple species if present in a wav file - is the classifier just identifying the species with the strongest calls, how well does it identify bat social calls / e.g.  is it mis-identifying Pipistrellus social calls as Nyctalus species , how well does it identify weak bat calls in noisy recordings (e.g. does it miss Barbastelle calls in recordings with bush-crickets), does it mis-identify small mammals calls as bats e.g. Brown rat calls as Nyctalus species. 

Hi Stuart, Thanks for your response, and nice to e-meet someone behind the BTO acoustic pipeline! I have been testing out BTO quite a lot recently, and have started comparing results to Kaleidoscope this month, and have been manually checking classification results against raw audio. Will keep you updated with any findings if of interest.

Is there a minimum frequency recording that needs to be taken when uploading the BTO acoustic pipeline? I'm also interested in small mammals, and suspect that 96 KHz should be fine, rather than 192/384 when recording for bats.

Another option for you could be Arbimon - it's free and does not require any coding/programming knowledge! 

See full post

ISO Speakers for Emerging Technologies class.

Hi Everyone, Apologies for posting across multiple groups.  I'm teaching a new course @ Clark University next semester on emerging technologies for conservation. The course...

2 0

Definitely interested! I'm in the ecoacoustics/acoustic monitoring space, working at Rainforest Connection and Arbimon.

See full post

Frontier Labs BAR-LT Localization Firmware

I am using the Frontier Labs BAR-LT recorders for acoustic localization for the first time. I noticed that the Frontier Labs guide to acoustic localization mentions the need to...

1 0

Hi @tessa_rhinehart 

Apologies, only just saw this message. Did you end up getting the firmware. I know the Frontier Lab guys and can possibly reach out to them if you are still having trouble. Let me know. 



See full post

New Paper: Identification of fish sounds

Xavier Mouy recently shared this new bioacoustics paper on Twitter. This research focuses on identifying fish sounds in relation to specific species through the use of three underwater portable audio-video platforms. The proposed array designs successfully identified fish sounds, and this paper covers instructions for others working in marine bioacoustics who would like to apply these ideas to their own work.


Congo Basin activity?

greetings - I am helping coordinate a visit by the incoming director of national parks for the Democratic Republic of the Congo (DRC) in mid-late June. He is very interested to...

1 0



i sent you a PM regarding this, feel free to contact me however is most convenient for you -




See full post

Accessible acoustic analysis tech for blind scientist - ideas?

Hi all - I'm mentoring a student who is blind on a bioacoustics project to classify killer whale calls. Anyone out there have any experience with or ideas about making...

4 0

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!!!

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! 




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.  




See full post

Who's going to ESA in Portland this year?

So who is going to be at the Ecological Society of America meeting this year in Portland, August 6-11th?It will be my first time at the conference, so I won't know many people...

4 3

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.

See full post