How Do Whales Make Sound Underwater?

How Do Whales Make Sound Underwater? Toothed whales can produce sounds using their larynx as well as specialized air sacs near their blowhole. The larynx is used to produce whistles, while the air sacs are used to produce high frequency echolocation signals. … Underwater vocalizations are described as bell-like sounds, clicks, trills, warbles, and whistles.