Kolkata, Aug 26: The West Bengal Forest Department is exploring the possibility of a sensor-based technology to track the various sounds made by elephants to track their exact location. The move is a significant stride towards mitigating the problem of elephant deaths on railway tracks in north Bengal. This will be the first time in the country that such a technology will be used, said a senior official of the Forest Department. He said that the high-frequency sounds made by an elephant are audible but they also make low-frequency sounds that are inaudible to the human ear; this is where the technology will help. The technology will use artificial intelligence to recognise such sound within a fixed radius.