Cosmos, 2/3/2022 • Neanderthals were capable… (5-7)

▤  •  C o s m o s m a g a z i n e  (2 / 3 / 2 0 2 2)  •  … o f  h u m a n  s p e e c h  •

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The study relied on high-resolution CT scans to create virtual 3D models of the ear structures in ‹Homo sapiens› and Neanderthals. Data collected on the 3D models were entered into a software-based model to estimate hearing abilities up to 5 kHz, which encompasses most of the frequency range of modern human speech sounds.

Compared with fossils from the Atapuerca archaeological site in Spain that represent earlier ancestors of the Neanderthals, the Neanderthals showed slightly better hearing between 4-5 kHz, thus more closely resembling modern humans’ capabilities.

In addition, the researchers were able to calculate the frequency range of maximum sensitivity, technically known as the occupied bandwidth, in each species. The Neanderthals show a wider bandwidth compared with their ancestors from Atapuerca, again more closely resembling modern humans in this regard.

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