MOBI is a buoy dedicated to real-time monitoring of underwater acoustic sounds. High acoustic performance is available with 24 bits raw data, 110 dB dynamic range, listening up to 200 kHz and self-noise below sea state zero. While recording, an embedded analysis is carried out to allow the real-time transmission of acoustic levels and alerts in the event of a threshold being exceeded. With a long data transmission range without additional subscription costs, energy self-sufficiency and a large storage capacity of up to 16 TB, MOBI is suitable for coastal or deep sea applications, for short missions or long-term PAM (Passive Acoustic Monitoring).
Key technical specifications |
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| ✓ Real-time embedded acoustic analysis ✓ Transmission of acoustic levels, alerts or raw data samples ✓ Large data transmission range without additional subscription fees ✓ Internal raw data storage up to 16 TB |
✓ Energy self-sufficent for long-term deployments ✓ Lightweight but rugged ✓ User-friendly ✓ Easy to transport and to deploy from small boats ✓ Configuration and remote software updates over WiFi or radio link (off-shore) |
Acoustic analysis :
Several types of acoustic analyzes are available on pulsed events and their cumulative noise or on continuous sounds: the estimation of Sound Pressure Level (SPL) or Sound Exposure Level (SEL) following ISO, 2017 standards, Third octave band levels following ANSI/ASA S1.11-2014, M-weighting levels (Southall et al. 2019).
The evaluation of acoustic features and normative thresholds exceedings is in accordance with regulations, in particular European recommendations (MSFD), French recommendations, American regulations (NMFS) and German regulations.