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/sci/ - Science & Math


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File: 139 KB, 236x298, leaf nosed bat vietnam.png [View same] [iqdb] [saucenao] [google]
10820338 No.10820338 [Reply] [Original]

This is a leaf-nosed bat. Evolution has given it convex lips and forehead to aid with echolocation.

If you were creating a synthetic face for a bat, would it be optimal for echolocation if it were dish-shaped?

>> No.10820450

>>10820338
>dish shaped
Psycho-acoustics doesn't work like that at all. With technology, engineering compensate with resourceful signal filtering, so a dish is fine.
Nature does both, better embedded filters and better shapes, think about us humans, because of genetic bricolage, the ear having certain grooves and protuberances is probably more easy to get in evolutionary terms than a whole new set of neuronal process. Healthy human beings are capable of ubicate, differentiate, separate and filter noises with their brains, even if they have damaged outer ear tissue, not as people who had received cochlear implants later in life, since their brains lost that skill when growing.

>> No.10820456
File: 17 KB, 480x360, both.jpg [View same] [iqdb] [saucenao] [google]
10820456

>>10820450
So shape and signal processing.

>> No.10820465

>>10820338
Some aspects of bat brains are also puzzling to scientist, their process audio signals way faster than any other animal, the mechanism is not still fully comprehended, not explained by mere neural transmission speed.

>> No.10820470
File: 35 KB, 452x600, Hrtf_diagram.png [View same] [iqdb] [saucenao] [google]
10820470

PIC RELATED
is the HTRF

>> No.10820813
File: 24 KB, 487x362, CNX_Precalc_Figure_10_03_0142.jpg [View same] [iqdb] [saucenao] [google]
10820813

Dish shaped receivers are optimal for losing position information while amplifying a signal.