The bat can then emit sound waves, through either its nose or mouth, which can reach up to 150 kHz.

While landing or flying around in groups around the roost-site, lesser mouse-tailed bats emit frequency modulated (FM) sounds of 3 ms duration.

Echoes coming from different directions activate neurons at different locations in the collicular layers, and activation of collicular neurons influences the chirps that the bats emit.

Then he brought forth a thin cylinder and placed it to his ear, listening as the bat emitted complex, wavering squeaks.

The bat emits the calls at a constant frequency, but the heterodyne bat detector exaggerates the doppler effect as it flies.

The adult male Franquet's bat has a bony voice box and emits a high pitched call which is heard throughout the night.

When pursuing prey, a bat emits 200 calls per second.

The bats which use the Doppler effect emit long bursts of sound.

Daubenton's bat emits echolocation calls of frequencies between 32 and 85 kHz, though typical calls peak at 45 to 50 kHz and have a duration of 3.3 ms.

The largest bats emitted sounds at a frequency of about 27 kilohertz, the midsize variant at 39 kHz and the smallest at about 53 kHz.