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AudioMoth

 

AudioMoth is a low-cost, full-spectrum acoustic logger, based on the Gecko processor range from Silicon Labs. Just like its namesake the moth, AudioMoth can listen at audible frequencies, well into ultrasonic frequencies. It is capable of recording uncompressed audio to microSD card at rates from 8,000 to 384,000 samples per second and can be converted into a full-spectrum USB microphone.

  • EFM32 Gecko processor

  • Capable of recording at sample rates up to 384kHz

  • Records uncompressed WAV files to microSD card

  • Can be converted into a full-spectrum USB microphone

  • Powered by 3 x AA batteries

  • Analog MEMS microphone

  • Analog pre-amplifier with adjustable gain

  • Measures just 58 x 48 x 15 mm

  • Configurable USB interface

  • Onboard real-time clock keeps track of time in UTC

  • Exposed header for 3.5mm jack mic from version 1.2.0 onwards 

Click Getting Started for help setting up a new AudioMoth.

To download a manual containing all AudioMoth information for offline usage click
here.
 

AudioMoth Dev

 

AudioMoth Dev is a variant of the standard AudioMoth designed as a development board for skilled users to integrate into other boards and products.

  • Power socket (JST-PH) supporting 3.7 - 6V batteries

  • All controls, indicators and IO ports broken out to 5 JST-PH style headers

  • 3.5 mm jack socket for external electret condenser microphones

  • Compatible with all AudioMoth software

 

To download a datasheet containing all AudioMoth Dev details click here.

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μMoth

 

μMoth is a micro-size variant of the standard AudioMoth 1.1.0 open-source design, while maintaining full compatibility with all versions of the existing firmware.

  • Power socket (JST-PH) supporting 3.7 - 6V batteries

  • Measures just 32 x 24 mm

  • Weighs just 5g (excluding battery)

  • Compatible with all AudioMoth software

To download a datasheet containing all μMoth details click here.

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HydroMoth

 

HydroMoth is a variant of the standard AudioMoth specifically designed to be deployed in the underwater case.

  • Re-positioned LEDs for improved visibility in the underwater case

  • Improved 32.768 kHz MEMS oscillator to reduce clock drift

  • In-built magnetic reed switch, which enables recordings to be started and stopped in wet conditions without opening the case.


To download an application note containing examples of HydroMoth deployments click here.

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IPX7 Waterproof Case

 

The AudioMoth IPX7 Waterproof Case is designed specifically for AudioMoth version 1.0.0, 1.1.0 and 1.2.0 (without the 3.5mm socket). The case is made from injection-moulded polycarbonate and comes with an adjustable velcro strap, which makes securing AudioMoth simple and easy. The case is compact and highly resilient and will house AudioMoth for extended periods of time in a wide variety of terrestrial environments.

  • Injection-moulded polycarbonate protective case

  • Sealed using an easy-to-use clasp and compression o-ring

  • Rain hood designed to prevent water pooling

  • Microphone opening protected by a Porelle acoustic vent 

  • Comes with a removable adjustable velcro strap

  • Available in green

More technical information is available here.

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Underwater Case

 

The AudioMoth Underwater Case enables a standard AudioMoth to make recordings underwater. The case is designed specifically for AudioMoth version 1.2.0 (without the 3.5mm socket). Although other versions of AudioMoth will fit inside the case, we recommend version 1.2.0 to minimise self-noise in recordings. The case is made from injection-moulded polycarbonate and comes with an adjustable velcro strap, which makes securing AudioMoth simple and easy. The case is compact and highly resilient and will house AudioMoth for extended periods of time at depths of 30-60m.​

  • Injection-moulded polycarbonate protective case

  • Sealed using an easy-to-use clasp and compression o-ring

  • Submersible underwater case

  • Tested to a depth of 30m for 2 months

  • Comes with a removable adjustable velcro strap

  • Available in frosted transparent 

Technical information coming soon. 

 

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