©2019 Open Acoustic Devices

AudioMoth

An open acoustic device for monitoring biodiversity and the environment 

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.

  • EFM32 Gecko processor

  • Capable of recording at sample rates up to 384kHz

  • Records uncompressed WAV files to microSD card

  • 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

Available from
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Click Getting Started for help setting up a new AudioMoth. To download a manual containing all AudioMoth information for offline usage click here, for the same information in a printer-friendly format click here.