In each culture, we’re trained to hear in a certain way. Speakers of tonal languages such as Chinese recognize subtleties of pitch that are difficult for English-speaking people to grasp. A similar thing happens with Indian music, which uses pitches between notes with which Western listeners are familiar. Similar biases make it difficult for human researchers to discern the subtleties of animal sounds that may sound alike to us, but maybe not to them. AI, though, is very good at identifying patterns, and researchers have set it the task of analyzing sounds from the ocean floor. It’s just found six distinct dolphin clicks we never new existed, according to a study just published in PLOS Computation Biology.
http://bigthink.com/robby-berman/ai-analyzes-dolphin-chatter-and-discovers-something-we-didnt-know