Characteristics of acoustic recordings of narwhals (Monodon monoceros) north ...

A total of 1,690 individual narwhal nonecholocation sounds were recorded over 5 h in 2007 and 2009. Each sound was classified as either tonal (FM) or pulsed (amplitude...2007年与2009年间，研究人员在总计5小时的录音过程中共记录到1690条独角鲸（narwhal）的非回声定位声音样本。所有声音样本均被归类为调频（FM）声调类声音或脉冲类（振幅……）声音。