Depuis le mois dernier, les chercheurs du Monterey Bay Aquarium Research Institute (MBARI) proposent aux internautes d’écouter les sons entendus des baleines et dauphins en direct sur leur compte YouTube. Comment ce prodige est possible ? Et bien avec un micro et une connexion internet 🤘 . Plus précisément avec un hydrophone (qui est un microphone aquatique) du réseau MARS Ocean Observatory qui fut placé en 2015 à 900 mètres de profondeur, et à 30 km de la Baie de Monterey (Californie).
Tout est ensuite diffusé sur YouTube avec un décalage de 20 minutes (le temps que les données soient enregistrées et traitées).
This live stream of the ocean soundscape is from 900 meters deep just outside Monterey Bay, California. Recordings come through a hydrophone on a deep-sea cabled observatory. Audio has been amplified so you can hear this from your speakers but you may still need to turn up your volume to hear the many subtle low sounds. The very low pitch of some baleen whale vocalizations can only be heard with appropriate speakers (subwoofer or high-quality headphones).
The stream is delayed approximately 20 minutes from the current time to allow for processing. Sound files are recorded in 10 minute segments, so every 10 minutes you will hear the beginning of a new sound file.
Sound sources and levels vary greatly. Tuning in at any time, you may hear whales, dolphins, sea lions, boats, rain, wind, earthquakes and other sounds. If you tune in to a quiet soundscape, be sure to check back later. You can also listen to pre-recorded clips of many sounds in the Soundscape Listening Room
Monterey Bay Aquarium Research Institute
- Site : https://www.mbari.org
- Communiqué : https://www.mbari.org/hydrophone-stream-release
- YouTube : https://www.youtube.com/user/MBARIvideo
- Soundscape Listening Room : https://www.mbari.org/soundscape-listening-room
