I’m not talking about accents or the reason we might have similar voices to our parents — because we learn how to speak from them. Do an X ray of two people’s throats or diaphrams or whatever….I assume they will look largely similar. Why might one have a high pitched voice; the other a deep resonant one? Etc.
In: Biology
Because there are several bodyparts involved that modulate the air flow. Each part is influenced also by genetics which is why voices are so different. With training one can achieve quite a huge change as well despite the natural voice being the same
P.S. from the top of my head those parts are tongue, lips, teeth, nasal and oral cavities etc
At its core, the uniqueness of each person’s vocal timbre is attributed to various factors beyond just the physical structure of their vocal apparatus. While people may have similar anatomical structures, the nuances in their voices come from how those structures function and are used, as well as from individual differences in muscle control, tension, and vocal habits.
I’m an anesthesiologist so I spend a LOT of time looking at people’s airways. Everyone’s voice box area is more or less the same shape, but pretty dramatically different in the sizes and details. There’s just endless variation in the physical structures that produce the sounds, so there’s a lot of variation in the sounds produced.
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