The structure of the middle ear and the hearing of one’s own voice by bone conduction.

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Békésy, G. V. (1949). The structure of the center ear and the listening to of 1’s own voice by way of bone conduction. Journal of the Acoustical Society of America, 21, 217–232. Https://doi.Org/10.1121/1.1906501
“If we count on that in the evolution of the mammalian ear nature has made the high-quality feasible use of physical and acoustic principles, we are led in addition to assume (1) that the center ear affords maximal sensitivity mixed with finest first-class, and (2) that the middle ear is so adjusted as to reduce noise select-up from the speaker’s body in the course of talking. In terms regular with these assumptions, it’s miles viable to explain: why mammals have two vocal chords; why a bony rod lies on the eardrum; why the factor of rotation of this bony rod is at the brink of the eardrum; why the mass of the ossicles appears so exaggerated; why the eardrum is conical in form; why the membrane of the footplate of the stapes is so small; why the footplate of the stapes has an elliptical form; why a joint is necessary among the stapes and the incus; and why an animal with skinny headbones has a bulla.” (PsycINFO Database Record (c) 2016 APA, all rights reserved)

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