Aural-M3
Aural-M3
The AURAL-M3 (Autonomous Underwater Recorder for Acoustic Listening, version M3) is designed to capture and record acoustic data in challenging marine environments. Ideal for oceanographic research, marine wildlife monitoring, and observing human activities underwater, this sophisticated device is equipped with highly sensitive hydrophone sensors.
These sensors can detect a wide range of acoustic frequencies, from the low frequencies used by large marine mammals to the high frequencies needed for detecting smaller marine organisms and anthropogenic activities.
Acoustic Sensors: The AURAL-M3 is equipped with ultra-sensitive HTI-96 or HTI-99 hydrophone sensors, capable of detecting a wide range of underwater acoustic frequencies. These sensors record sounds from low frequencies used by large marine mammals to high frequencies used for detecting small marine species and human activities.
Data Recording: The device has generous internal memory, capable of storing a vast amount of acoustic data. This data can be recorded continuously or according to predefined sampling schedules.
Battery Life: Designed for extended missions, the AURAL-M3 features a high-capacity battery that ensures several months of autonomy. With intelligent energy management, consumption is optimized based on the requirements of each mission.
Robust Construction: Built to withstand the most demanding underwater conditions, the AURAL-M3 is made of stainless steel and FRP, ensuring excellent resistance to corrosion and pressure.
User Interface: The AURAL-M3 has an intuitive user interface for programming and data downloading. It allows for easy configuration of the device’s settings before deployment and straightforward data extraction after retrieval via a wireless network (Wi-Fi).
High sensitivity: Ability to detect weak acoustic signals over long distances.
Extended autonomy: Prolonged operation without human intervention thanks to optimized energy management for over a year. Ideal for Arctic missions.
Robustness: Design resistant to hostile marine environments, ensuring a long lifespan of the equipment.
The AURAL-M3 is used in various fields, including:
Marine Research: Monitoring marine mammal populations, studying acoustic habitats, and analyzing the impacts of underwater noise on marine life.
Environmental Monitoring: Detecting underwater seismic activities, monitoring offshore construction sites, and assessing the environmental impacts of industrial projects at sea.
Conservation: Marine conservation programs, monitoring endangered species, and behavioral studies of marine creatures.
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Specification
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Name
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Details
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Physical
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64 (0.15×1.19m), 128 (0.15×1.75m)
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Dimensions
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Instrument dimensions
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64 (29kg), 128 (63kg)
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Weight (in air)
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Instrument total weight (including the batteries)
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Delrin, Fiberglass/Epoxy and Stainless steel 316
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Material
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Materials used to assemble the instrument
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Mechanical
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1200m
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Tested depth
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Tested operating depth
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Electrical
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~300 days typical (238 to 800 days according to the configuration)
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Battery Life
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The battery life is dependent on the recording parameters (filtering, recording mode, cycle period, etc.)
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Software
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up to 5x 1TB for a total of 5TB
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Storage Capacity
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Maximum storage capacity on the SD cards
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Continuous or cycle (configurable)
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Recording Modes
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The AURAL-M3 can be configured for continuous recording or set to record a configurable number of minutes every configured period length
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Configurable
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Delayed Recording
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The AURAL-M3 can be configured to start recording in the future
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.wav
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Data format
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Format of the recorded data
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Acoustic
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HTI-96-MIN or HTI-99-HF
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Hydrophone
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Supported hydrophone models
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2000-128 000 Samples/sec
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Sampling Rate
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–
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10 to 64 000 Hz
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Frequency Range
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Range of the audio signal frequency
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~165 dBV/µPa
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Sensitivity
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Typical hydrophone sensitivity
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138 dB re 1µPa
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Dynamic Range
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Dynamic range of the AURAL-M3
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24 bits
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ADC resolution
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Resolution of the analog-to-digital converter of the AURAL-M3
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4 settings available: 9dB, 12dB, 15dB or 18 dB
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Adjustable amplifier gain
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Analog amplifier gain
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Additionnal Sensors
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0 to 1000PSI
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Water pressure
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Working range of the water pressure sensor embedded on the AURAL-M3
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-10 to 40 degC
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Internal temperature
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Working range of the AURAL-M3
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Reach out to our team of experts
To learn more about our products and services, or to discuss your specific needs, feel free to contact us. Our team is ready to assist you and provide tailored solutions for your projects.
