Open Acoustic Devices

AudioMoth 1.2 are now available on GroupGets! @groupgetscom groupgets.com/products/audio…

@tactiZity_ The geophone needs an additional small amplifier before the AudioMoth input. We'll be publishing the circuit in a write-up of the project.

@OpenAcoustics I am interested in Geophone. How do you connect it?

We are experimenting with connecting other sensors to AudioMoth to detect elephants. Two promising solutions are an SM-24 geophone and a buried piezo contact microphone. This is what they record when repeatedly dropping a bowling ball from a height of 1.5m at a distance of 100m.

The AudioMoth Configuration App version 1.12.1 is out now! If you previously downgraded to 1.11.1, don't forget to update and regain access to the GPS synchronisation features. openacousticdevices.info/applications

@RinglerMax @and1hill @ZSLWhipsnadeZoo @WILDLABSNET Getting closer. The first production batch of cases has arrived but we're looking at an issue with the crimping of the connector. Hopefully, it will be resolved in a couple of weeks.

@OpenAcoustics @and1hill @ZSLWhipsnadeZoo @WILDLABSNET "Before the end of the year" is rather over - any news on this front?

Testing the latest AudioMoth infrasonic developments for the WILDLABS Awards 2024 with the elephants @ZSLWhipsnadeZoo today. For project updates check out @WILDLABSNET wildlabs.net/discussion/wil…

We've discovered a bug in AudioMoth Configuration App 1.12.0. If you've updated to this version and plan to use the frequency trigger feature, we advise downgrading to version 1.11.1: openacousticdevices.info/applications Everything else works as expected and we'll release a fix soon!

A new AudioMoth 1.2.0 group purchase has begun over at GroupGets! @groupgetscom groupgets.com/products/audio…

@Guy__Bennett @ZSLWhipsnadeZoo @WILDLABSNET The case is designed to take for the AudioMoth Dev but could possibly be used with the AudioMoth 1.2 PCB with some modification.

@Guy__Bennett @ZSLWhipsnadeZoo @WILDLABSNET This is a Primo electret capsule with a custom mount that we'll hopefully be able to supply next year. An external microphone tends to be lower noise and also have better low-frequency response than the internal MEMS microphone.

@DocSlinky Thanks. It's always nice to get positive feedback.

@OpenAcoustics Did I tell you guys how good this is? We have a field grid of 40 moths and just swapping batteries and cards on a hike without a computer was a life saver

openacousticdevices.info/applications We've released a new version of the AudioMoth Configuration App (1.12.0)! This new version includes new GPS settings and a synchronisation tool. Update now, especially if you have an AudioMoth GPS Hat or GPS bundle!

@Guy__Bennett @Horsburgh2 @DurhamBirdClub Nice recording! You can also export videos directly from AudioMoth Play with the green camera icon.

This is a 30 sec video of the spectrogram of a Yellow-browed Warbler in Pier Head car park this morning. Overall it called 100 times in a 2.5 minute, non stop performance. Wonderful just to sit and listen. Put the volume up to hear it. @DurhamBirdClub

@TheTrueChazzyf @groupgetscom If the pin was in the wrong place then it must have been the wrong jack. The 3.5mm jacks supplied by @groupgetscom are the correct jack and will definitely fit. Other 3.5mm jacks, with different part numbers, are unlikely to fit or will have the wrong connections.

@OpenAcoustics @groupgetscom Thanks. I've already tried to solder on the microphone jack - that didn't work - the recommended jack type had one of the pins in the wrong place. Maybe I can find someone who is more handy than me with a soldering iron to help me - Id really like to use the GPS chip that I have.

If you already have an AudioMoth and want to get started with GPS synchronisation, then @groupgetscom have AudioMoth GPS Hats in stock again. groupgets.com/products/audio…

@TheTrueChazzyf @groupgetscom Yes, the AudioMoth GPS Hat is soldered onto the GPIO pins on the top surface. If you also get a 3.5mm socket you will be able to use the AudioMoth with external electret microphones. groupgets.com/products/sj2-3…

@OpenAcoustics @groupgetscom Do I need to get the soldering iron out to use this? I could practice on one of units I have that doesnt record anything useful anymore.

@RinglerMax @and1hill @ZSLWhipsnadeZoo @WILDLABSNET Apologies that these are taking so long! We've just finalised a revision to the clasp and are now progressing with the order of the first batch. We hope they'll be available for sale before the end of the year.

@OpenAcoustics @and1hill @ZSLWhipsnadeZoo @WILDLABSNET When will the big cases become available?

@parkan What sample rate is your AudioMoth USB Microphone configured to? The raw sample rate is always described in the device name and can be changed with the configuration app.

@OpenAcoustics actually sorry, that's not correct -- in Tenacity I can set the project rate to 192 but it drops to 48 as soon as I attempt to record

If you are using the AudioMoth USB Microphone with Raspberry Pi OS Bookworm you will need to change the PipeWire configuration to allow sample rates other than 48kHz. We've added instructions in the AudioMoth-Live GitHub repository. Older versions of the OS work fine.

@parkan What application are you recording with? These changes seem to work with AudioMoth-Live. The other option is to switch back to PulseAudio in the configuration tools.

@OpenAcoustics I've never had any luck with these pipewire settings, everything always reverts to 48 as long as there is something else 48 in the graph, any ideas?

Two new group orders just opened at @groupgetscom! Order now to get an AudioMoth 1.2 or the AudioMoth Dev + GPS Bundle with immediate shipping! groupgets.com/collections/gr…