01 / 01OPEN ACOUSTIC DEVICES
AudioMoth GPS Autonomous Acoustic Logger
GPS-SYNCHRONIZED AUTONOMOUS ACOUSTIC LOGGERGPS-synchronized autonomous bioacoustic logger featuring sub-microsecond time alignment, automated spatial coordinate logging, and full-spectrum recording for acoustic localization and Time Difference of Arrival (TDoA) arrays.
Time SynchronizationSub-microsecond (< 1 µs) time synchronization derived from integrated GNSS timing pulses
GNSS ReceiverHigh-sensitivity multi-constellation GPS / GLONASS receiver module with active patch antenna
Configuration, availability and delivery confirmed with your quotation.
01 / FIELD CAPABILITIES
Built for the task.
- Sub-microsecond GPS time synchronization enables precise multi-station acoustic triangulation and 3D flight path mapping
- Automatically logs exact satellite coordinates and UTC time directly into WAV file headers for automated GIS analysis
- Discipline circuitry corrects local crystal oscillator drift, ensuring perfect synchronization across entire sensor arrays
- Full-spectrum recording up to 384 kHz captures everything from low-frequency elephant rumbles to high-frequency bat echolocation
- Low-power sleep scheduling wakes the GPS receiver periodically to refresh clock calibration without exhausting field batteries
02 / TECHNICAL DETAILS
Precision, specified.
- Time Synchronization
- Sub-microsecond (< 1 µs) time synchronization derived from integrated GNSS timing pulses
- GNSS Receiver
- High-sensitivity multi-constellation GPS / GLONASS receiver module with active patch antenna
- Acoustic Sample Rates
- Configurable from 8 kHz up to 384 kHz full-spectrum uncompressed audio recording
- Microphone Sensor
- Low-noise analog MEMS microphone with configurable analog preamplifier gain
- Data Logging
- Embeds precise geographic coordinates (latitude, longitude, altitude) and UTC timestamps directly into WAV metadata
- Clock Drift Correction
- Continuous GPS clock disciplining eliminates crystal drift during long multi-month deployments
- Storage Interface
- MicroSD card slot supporting high-speed FAT32 memory cards up to 128 GB and higher
- Power Requirements
- 3 × AA alkaline or NiMH cells; optional external solar / battery input
- Array Application
- Engineered for Time Difference of Arrival (TDoA) acoustic localization and animal tracking arrays
- Operating Temperature
- -20°C to +50°C (-4°F to 122°F)
Key specifications and field-use details. Exact configuration may vary by model or selected variant.
Open Acoustic Devices
Pioneering open-source autonomous bioacoustic loggers, underwater acoustic monitors, and ultrasonic sensors for biodiversity research.
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