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Various Recordings from the Oceanic Depths 2

The following are recordings taken by the United States Navy likely around the 1950s and '60s from a submarine. These were later declassified as sonar technology was passed on to civilian scientific communities such as NOAA in the late 1970's. The video is made up of four sound categories these are: 1) Biologic - Whales, fish 2) Unidentified - Unidentified animal or animal-like sound (Although these may now have been identified today. Can you tell?) 3) Nature - Earthquakes, weather 4) Artificial - Ships and submarines Credit goes to http://www.hnsa.org/resources/histori... for the sound clips and are used under personal/educational purposes. More material on their site. Part 1    • Various Recordings from the Oceanic D...