The biggest database of biological sounds

South-America, Amazonia In-Air
South-America, Amazonian Boto
Antarctica, Antarctic Seals
Arctic, Greenland I (HF)
Arctic, Greenland I (HF)
Arctic, Greenland I (HF)
Arctic, Aug 28
Pacific Ocean, Humpback whale song

For the last twenty years, we have deployed our pioneering technology around the world. Today, more than 150 acoustic observatories stream their data to our servers 24/7.

300 g
The weight of TSOS smallest node to be deployed in Africa
3 t
A structure to protect the nodes when encountering icebergs
0-250 KHz
The frequency range of our sensors

Identifying sounds in air and underwater. Anywhere on Earth.

Deployed in most oceans, our technology has contributed to establish the first global map of underwater noise pollution. Though our ongoing initiatives in India, Africa and Amazonia, as well as in the Poles, the most remote and fragile habitats can be monitored to ensure the survival of key species and regenerate damaged ecosystems.


Powered by solar panels, our sensor nodes are totally non-invasive, automatically process real-time data and transmit it to the Internet.


Prepared to stand the most extreme climates, our buoys are equipped with acoustic and environmental sensors that can pick up sounds at ranges of hundreds of kilometers

Sound processing with Artificial Intelligence

This visionary technology monitors and understands wildlife challenges under a robust protocol, with real-time identification by image and sound of more species than any other technology available, wireless data transmission, and low energy consumption to last long periods without the need for maintenance. It was born and developed at the Laboratory of Applied Bioacoustics (LAB) of the Technical University of Catalonia, BarcelonaTech (UPC ). It includes the implementation of species-specific bio-indicators and ecoacoustics indices of biodiversity to bring in real-time the assessment of populations dynamics (e.g. change in species diversity, distribution, behaviour and abundance)

1,5 km/s
The speed of sound underwater
20 Hz
The infrasound call of the Fin Whale

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