Heres_what_bat_echolocation_sounds_like_slowed_... -

: The pulses speed up as the bat detects a target [6].

: Slow, steady pulses as the bat scans the environment [6]. heres_what_bat_echolocation_sounds_like_slowed_...

: Most bats emit sounds between 20 kHz and 200 kHz [1]. For context, the upper limit of human hearing is roughly 20 kHz [2]. : The pulses speed up as the bat detects a target [6]

Since we cannot hear these sounds naturally, researchers use [5, 7]. These devices use specialized microphones to capture high-frequency audio and then either heterodyne it (shifting the pitch) or use time expansion (slowing it down) so humans can study the intricate patterns of their "acoustic maps" [5, 7]. For context, the upper limit of human hearing

: Just before capture, the bat emits a rapid-fire burst of sound—sometimes hundreds of pulses per second—to get high-resolution tracking data in the final milliseconds [4, 6]. How We Record It

: By listening to the echoes that bounce back, bats determine an object's size, shape, distance, and even its texture [1, 6]. Phases of the Hunt