different vocal tract. How come dogs can't and don't know how to
meow and purr? different vocal tract.
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The trachea
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upper respiratory tract
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Vocalization is the sound made by the vibration of vocal folds
modified by the resonance of the vocal tract. The act of vocalizing
or something vocalized; a vocal utterance.
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The 'larynx' (LARE-inks) or voicebox contains the vocal
cords.