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The vocal tract is the cavity in human bodies and in animals where the sound 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.
[1]: 10 It is a point where a constriction is made between an active and a passive articulator. Active articulators are organs capable of voluntary movement which create the constriction, while passive articulators are so called because they are normally fixed and are the parts with which an active articulator makes contact.
The production of speech is a highly complex motor task that involves approximately 100 orofacial, laryngeal, pharyngeal, and respiratory muscles. [2] [3] Precise and expeditious timing of these muscles is essential for the production of temporally complex speech sounds, which are characterized by transitions as short as 10 ms between frequency bands [4] and an average speaking rate of ...
The Voice Foundation's official website; The Anatomy of Singing Archived 16 July 2011 at the Wayback Machine; David Harper, vocal coach: A passion for the voice that never wanes – Opera article (archived 11 September 2009) Irish Voice festival official website; How the voice works – The Voice Works Like a Car (video on YouTube)
Anatomy of the larynx, anterolateral view. The larynx or voice box is an organ in the neck housing the vocal folds, which are responsible for phonation. In humans, the larynx is descended, it is positioned lower than in other primates. This is because the evolution of humans to an upright position shifted the head directly above the spinal cord ...
This is the definition used among those who study laryngeal anatomy and physiology and speech production in general. Phoneticians in other subfields, such as linguistic phonetics, call this process voicing , and use the term phonation to refer to any oscillatory state of any part of the larynx that modifies the airstream, of which voicing is ...
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However speech production can occur without the use of the lungs and glottis in alaryngeal speech by using the upper parts of the vocal tract. An example of such alaryngeal speech is Donald Duck talk. [5] The vocal production of speech may be associated with the production of hand gestures that act to enhance the comprehensibility of what is ...