+ Read more on Flypaper: “How to Find Your Vocal Range and Write It on Your Résumé” Many of their beautiful clicks and whistles, and their famous whale songs, are audible to us, but these marine mammals can “vocalize” right up to 175 kHz without hesitation.Ī closer primate relative, the tiny Philippine tarsier, chit chats away in the tops of the trees at frequencies up to 90 kHz, keeping things legit up in his predator-free zone, while adult sloths also emit ultrasonic sounds as warning signals. Under the seas, dolphins, porpoises and toothed whales like orcas, narwhals, and sperm whales, also employ echolocation, using their melon - an oval shaped fatty organ at the front of their heads - as a sonic lens. In direct response to the insectivorous interests of said bats, the greater wax moth, a tasty bat snack, evolved the ability to hear up to a whopping 300 kHz and has been identified as being able to communicate at similar frequencies to help them avoid Batmen and Batwomen from scoffing them so easily. Most use their mouths, but around 300 or so species use their noses, and one customer, the ghost-faced bat, uses its lips to emit sounds up to an ear-stretching frequency of 160 kHz. Over 1,100 of the world’s bat species use these ultrasonic frequencies via echolocation to find their tucker in the deep dark night. There are many creators of such lofty sounds - and sorry, Metropolitan Opera, but Audrey Luna’s high A (at about 1,760 Hz) falls very short of that mark. Anything below this range is known as infrasound, and above that frequency ceiling is what we call ultrasound, or the wild chatter of the ultrasonic. We humans live in such an audio bubble, with a hearing range of a mere 20 to 20,000 Hz (referred from here on as 2 0 kHz).
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