Over the past few decades, animal sounds have seen a huge surge in research. Advances in recording equipment and analysis techniques have driven new insights into animal behaviour, population distribution, taxonomy and anatomy.
In a new study published in Ecology and Evolution, we show the limitations of one of the most common methods used to analyse animal sounds. These limitations may have caused disagreements about a whale song in the Indian Ocean, and about animal calls on land, too.
We demonstrate a new method that can overcome this problem. It reveals previously hidden details of animal calls, providing a basis for future advances in animal sound research.
