Vocal tract

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The vocal tract is the cavity in animals where sound that is produced at the sound source (larynx in mammals; syrinx in birds) is filtered. In birds it consists of the trachea, the syrinx, the oral cavity, the upper part of the esophagus, and the beak. In mammals it consists of the laryngeal cavity, the pharynx, the oral cavity, and the nasal cavity, and in some nonhuman mammals maybe also the airsacs.

The estimated average length of the vocal tract in adult male humans is 17.5 cm.

[edit] See also

• Language
• Parrot - a bird able to imitate human speech (but without comprehension, with the possible exception of African Grey Parrots)
• Speech Synthesis
• Manner of articulation