Recorder for long term deployments :
Abyssens offers a line of underwater acoustic recorders with high performances in acoustic recording and storage. Thanks to a self noise below sea state zero and a high dynamic range, ambient noise can be monitored together with high level sources.
DORI recorder – L addresses the issue of long term deployments in coastal areas.
Key technical specifications |
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| ✓ High dynamic range up to 110 dB
✓ High storage capacity up to 16 TB ✓ Raw data storage (.wav) on 24 bits ✓ Autonomy of 6.9 months in continuous recording (energy & storage) ✓ Self noise below sea state zero |
✓ Software configurable analog amplification gain and analog high pass filter using WiFi (without opening the recorder) ✓ Remote software update of the recorder ✓ Clean and secure access to SD cards (without contact with electronics) |
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Our main options |
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| ✓ Temperature sensor |
✓ Vacuum kit (allows you to test the watertightness of the device) |
Typical use cases :
Two frequency ranges are available and offer you a complete listening range of the underwater soundscape. These underwater recorders can be used for PAM (Passive Acoustic Monitoring) allowing to listen the ambient noise and its constituents:
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anthropogenic sounds : noise radiated by boats, sea works noises as pile driving, drilling or explosions, noise radiated by renewable marine energies
- biologic sounds : marine mammals, fishes and bentic activity
- geophonic sounds : wind, rain, seismic and volcanic activity
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High frequency option allows listening up to 200 kHz, which is often requested for detecting clicks from marine mammals, such as harbor porpoises.
