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« We are going to probe the abyss using passive acoustics, classify biosonar waveforms using neural representation learning or wavelet learning, and follow the 3D dives of large cetaceans at -1000m,” explains Hervé Glotin. These are the first masses of underwater high-definition acoustic data acquired from surface drones. Cetaceans are our ambassadors of the abyss, they tell us about this little-known world. »