iiinova — where your digital self keeps evolving

Open Acoustic Devices @openacousticdevices.info · 04/09/2026

Our prototype NanoMoths are going out for field trials this week. Weighs just 6g including a 150 mAh Li-Ion battery and not much bigger than a micro SD card. Supports all the features of standard AudioMoth up to 192 kHz sampling rate.

Photographs of a NanoMoth prototype printed circuit board against a green background.

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Open Acoustic Devices @openacousticdevices.info · 29/07/2026

We've released an Application Note describing our new external electret microphone that is available from our online store. github.com/OpenAcoustic...

Photograph of AudioMoth external electret microphone.

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Open Acoustic Devices @openacousticdevices.info · 24/07/2026

Great paper describing how HydroMoth can be calibrated to provide SPL measurements accurate to 1–3 dB across a frequency range of 100 - 1000 Hz. journals.plos.org/plosone/arti...

Photograph of HydroMoth underwater recorder from Open Acoustic Devices.

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Open Acoustic Devices @openacousticdevices.info · 19/07/2026

The last update to the AudioMoth standard firmware (1.12.1) reduced the typical energy consumption of large SD cards. See our recent application note for more details: github.com/OpenAcoustic...

Table showing AudioMoth energy consumption on a range of different SD cards.

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Open Acoustic Devices @openacousticdevices.info · 08/07/2026

If you use the AudioMoth GPS Board or GPS Hat to synchronise recordings, you can now select between interpolation or nearest neighbour resampling algorithms when generating the final GPS-synchronised recordings.

Screenshot of the AudioMoth Configuration App open on the Synchronise AudioMoth Files option.

Photograph of the AudioMoth GPS Hat and AudioMoth GPS Board.

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Open Acoustic Devices @openacousticdevices.info · 26/06/2026

The heat wave has provided a good test of our satellite-connected AudioMoth which uses an Arribada @arribada-i.bsky.social SMD Argos module to transmit live status information from anywhere on the planet.

Photograph of a satellite-connected AudioMoth deployed with an Argos SDM module.

Temperature plot from deployed AudioMoth device.

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Open Acoustic Devices @openacousticdevices.info · 05/02/2026

#AudioMoth early ambitions of remote low-cost alerts has come closer to reality within a NatGeo funded project led by @jlahoz.bsky.social, integrating low-cost @arribada-i.bsky.social SMD Modules and Kinéis nanosatellites for real-time alerts from any location. #Tech4Wildlife @wildlabs.bsky.social

The left image shows an Open Acoustic Devices team member testing the first version of AudioMoth 1.0.0 with Lora radio integration in a Belize tropical forest. The AudioMoth is housed in an early prototype enclosure consisting of layers of clear acrylic laser cut sheets. Initial findings in 2018 indicated a wireless range of less than 50 metres.

The right image depicts the same team member testing the integration of satellite communication on AudioMoth Dev for real-time alerts and status updates on a remote location on the Isle of Wight, UK. The AudioMoth Dev is housed inside an AudioMoth Dev Case with an AudioMoth external microphone installed on the bottom left of the case with deac-cat windshield.

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Open Acoustic Devices @openacousticdevices.info · 28/10/2025

Did you know that there is a clear version of the terrestrial AudioMoth IPX7 Waterproof Case? This variant is intended for bioacoustics education and training purposes, with clear visibility of the flashing LEDs. #bioacoustics www.openacousticdevices.info/product-page...

AudioMoth audio recorder inside the clear AudioMoth IPX7 Waterproof Case

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Open Acoustic Devices @openacousticdevices.info · 13/09/2025

There are currently a small number of AudioMoth USB Microphone boards and cases available at @groupgets.bsky.social. Inbuilt MEMS microphone and support for external microphones and hydrophones. Pair with the AudioMoth Live App to view and record live sounds. groupgets.com/products/aud...

Photograph of the AudioMoth USB Microphone printed circuit board.

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Open Acoustic Devices @openacousticdevices.info · 15/08/2025

AudioMoth GPS Hats are back in stock at @groupgets.bsky.social GroupGets if you want to start experimenting with sound source localisation from GPS synchronised AudioMoth recordings. groupgets.com/products/aud...

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Open Acoustic Devices @openacousticdevices.info · 18/07/2025

AudioMoth 1.2.0 devices are back in stock at @groupgets.bsky.social. groupgets.com/products/aud...

Photograph of an AudioMoth 1.2.0 acoustic recorder against a white background.

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Open Acoustic Devices @openacousticdevices.info · 09/07/2025

If you want to do extended AudioMoth deployments with D-cell batteries, attach external microphones or use the AudioMoth GPS board, there are a few remaining AudioMoth Dev cases available at @groupgets.bsky.social. groupgets.com/products/aud...

A photograph of a green AudioMoth Dev case that holds 3 D-cell batteries, has a port for an external microphone, and allows easy use of the AudioMoth GPS board.

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Open Acoustic Devices @openacousticdevices.info · 26/06/2025

There are a small number of AudioMoth GPS Hats back in stock at @groupgets.bsky.social if you are interested in trying out GPS synchronised recording. These solder to the top face of a standard AudioMoth. groupgets.com/products/aud...

Photograph of an AudioMoth GPS Hat showing a PCB and a GPS ceramic antenna and module.

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Open Acoustic Devices @openacousticdevices.info · 13/06/2025

www.bbc.co.uk/news/article... AudioMoth's humble beginnings involved a search for the New Forest Cicada. Great news to see the story coming full circle and the species returning to the UK.

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Open Acoustic Devices @openacousticdevices.info · 09/06/2025

If you are interested in connecting other signal sources to AudioMoth, such as piezoelectric hydrophones and contact microphones, or geophones, check out our new application note - github.com/OpenAcoustic...

A photograph of a custom piezoelectric transducer sensor and a SM-24 geophone in a yellow commercial housing with a soil spike, sitting on a patterned workbench.

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Open Acoustic Devices @openacousticdevices.info · 21/05/2025

Today we're attending Biodiversa+ in Barcelona! Come by and say hi if you're attending.

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Open Acoustic Devices @openacousticdevices.info · 12/05/2025

If you use the AudioMoth GPS Sync firmware, there is a new firmware version and app out which better supports long recordings. Synchronised output files that were previously limited by the 4.3GB WAV file length limit will split into multiple files. www.openacousticdevices.info/gps-sync

Screenshot of the AudioMoth GPS Sync App.

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Open Acoustic Devices @openacousticdevices.info · 30/04/2025

AudioMoth Dev Case allows you to deploy an AudioMoth Dev with three D-cell batteries, a massive amount of capacity! Want to protect a device throughout a long-term deployment, or with a GPS/external microphone? The Dev Case is available now at @groupgets.bsky.social groupgets.com/products/aud...

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Open Acoustic Devices @openacousticdevices.info · 14/04/2025

Yes, you can slow these down to audible frequencies and make a video of the resulting sounds.

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Open Acoustic Devices @openacousticdevices.info · 14/04/2025

It's not the best quality as I recorded it from your video, but it's not bad. You can downsample, play back faster or slower than real-time, and apply filters.

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Open Acoustic Devices @openacousticdevices.info · 09/04/2025

To protect them from curious elephants, we repurposed camera trap cages for our #AudioMoth Dev field trials as part of the @wildlabs.bsky.social Awards 2024. #bioacoustics

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Open Acoustic Devices @openacousticdevices.info · 01/04/2025

Great underwater #bioacoustics clip by David de la Haye, showing how you can use an AudioMoth USB Microphone to connect a hydrophone to your phone for good quality underwater audio recordings www.youtube.com/watch?v=URX1...

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Open Acoustic Devices @openacousticdevices.info · 27/03/2025

An updated version of the AudioMoth GPS Hat, which uses a solid state Hall effect sensor for the magnetic switch, is now available at @groupgets.bsky.social. groupgets.com/products/aud...

Photograph of an AudioMoth GPS Hat against a clear light grey background.

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Open Acoustic Devices @openacousticdevices.info · 19/03/2025

The AudioMoth Dev board is compatible with all AudioMoth firmware and is intended for embedding in other devices. This ruggedised waterproof AudioMoth was built for recording whale vocalisations from an open boat in the Arctic using an Aquarian H2D hydrophone. #bioacoustics

Ruggedised waterproof AudioMoth sitting on a marina deck with two AudioMoth Dev printed circuit boards.

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Open Acoustic Devices @openacousticdevices.info · 12/03/2025

Very excited to get our first wild elephant rumble recorded in Thailand as part of the @wildlabs.bsky.social Awards 2024! This was recorded with an AudioMoth Dev, AudioMoth GPS Board and custom Low Pass Filter board. All neatly installed inside the new AudioMoth Dev Case www.openacousticdevices.info

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Open Acoustic Devices @openacousticdevices.info · 06/03/2025

The AudioMoth Dev Case is now available on GroupGets! groupgets.com/products/aud... A waterproof enclosure for AudioMoth Dev, supporting external microphones, GPS, batteries, and custom boards. It features a rain shield, acoustic vent, and a security lock eyelet. @groupgets.bsky.social

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Open Acoustic Devices @openacousticdevices.info · 21/02/2025

The current AudioMoth 1.2.0 stock is selling fast. Remember that you can add additional devices to @groupgets.bsky.social orders and there are AudioMoth USB Microphones in stock for immediate shipping. groupgets.com/products/aud...

A photograph of the AudioMoth USB Microphone against a clear white background.

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Open Acoustic Devices @openacousticdevices.info · 28/01/2025

Thanks to ZSL and everyone who attended the Thai AudioMoth workshop!

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Open Acoustic Devices @openacousticdevices.info · 22/01/2025

Picking up some bats along the river with AudioMoth Live and an AudioMoth USB Microphone.

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Open Acoustic Devices @openacousticdevices.info · 14/01/2025

And this elephant rumble, recorded at Whipsnade Zoo in the UK.

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Open Acoustic Devices @openacousticdevices.info · 14/01/2025

Works nicely with these hooting frog (Heleioporus barycragus) calls recorded in Australia.

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Open Acoustic Devices @openacousticdevices.info · 14/01/2025

As part of our WILDLABS Awards 2025 project we've released an update to AudioMoth Play - play.openacousticdevices.info - to view and play back of low frequency sounds. You can enable 'low frequency view' under the control icon. You may need to clear the browser cache to get the latest version.

Screenshot of the new 'low frequency view' in the AudioMoth Play web app.

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Open Acoustic Devices @openacousticdevices.info · 08/01/2025

If you want to experiment with GPS synchronisation of WAV files, a small number of AudioMoth GPS Hats are still available from @groupgets.bsky.social. They solder directly to the top surface of any regular AudioMoth 1.2.0 device. groupgets.com/products/aud...

A photograph of an AudioMoth GPS Hat. A small GPS module that can be soldered to the top surface of a regular AudioMoth.

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Open Acoustic Devices @openacousticdevices.info · 27/11/2024

Nice. If you click the green 'video' button in AudioMoth Play it will generate a video of the sonogram playing with the sound in the background. You can use all the speed and filter controls to change the audio in the video.

Screenshot of AudioMoth Play with the video generation button highlighted.

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Open Acoustic Devices @openacousticdevices.info · 27/11/2024

We're experimenting with GPS-synchronised soil recordings. The sensors are piezo transducers incorporating a JFET amplifier which plug directly into the AudioMoth's 3.5mm socket. The AudioMoth GPS Hat provides GPS synchronisation. #bioacoustics

Photo showing two AudioMoth devices equipped with GPS Hats and piezo soil sensors.

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Open Acoustic Devices @openacousticdevices.info · 21/11/2024

The newest versions of the AudioMoth Configuration App and standard firmware now support adding the device ID as a prefix in the WAV file name.

Screenshot of the AudioMoth Configuration App showing new support for using the device ID as a prefix in the WAV file name.

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