Heres_what_bat_echolocation_sounds_like_slowed_... ✦ Exclusive

: 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

When you listen to a recording of a bat approaching prey, the rhythm changes distinctly: heres_what_bat_echolocation_sounds_like_slowed_...

: The pulses speed up as the bat detects a target [6]. : Just before capture, the bat emits a

: Slow, steady pulses as the bat scans the environment [6]. use ultrasonic pulses—sounds at frequencies far above the

use ultrasonic pulses—sounds at frequencies far above the range of human hearing—to navigate and hunt in total darkness [1, 2]. To make these sounds audible to us, scientists use "time expansion" to slow them down, often by a factor of 10 or 20, which lowers the pitch into our acoustic range [4, 5]. The Mechanics of Echolocation

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].

: 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