About 108-114 dB is the maximum volume most humans can tolerate without pain or hearing damage.

Can humans hear echolocation?

Echolocation calls are usually ultrasonic–ranging in frequency from 20 to 200 kilohertz (kHz), whereas human hearing normally tops out at around 20 kHz. Even so, we can hear echolocation clicks from some bats, such as the Spotted bat (Euderma maculatum).

Can humans hear dolphin whistle?

When separated from their social group, dolphins whistle in short, unique bursts to signal their location and identity. They whistle through their blowholes at frequencies almost too high for humans to hear. Their human trainers use a dog whistle to communicate with the dolphins.