Articulatory Anatomy Part 1

Articulatory Anatomy Part 1 - Articulatory Anatomy Chapter...

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Chapter 6 Articulatory Anatomy
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Articulation § Articulation (physiological) Process of bringing two structures together loosely to allow  movement. § Articulation for speech Modification of the airstream into the various sounds of speech. The airstream will have been set into vibration by the vocal folds  for voiced sounds; or will have flowed unimpeded through an open glottis for  voiceless sounds
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Source Filter Theory § Source-filter theory Describes how oral cavity shapes speech  States that a voicing source is generated by vocal folds, routed  through vocal tract, and then shaped into sounds of speech Vocal Folds=source  Vocal Tract= filter  § Vocal tract consists of: § oral cavity  § Pharyngeal cavity  § nasal cavity
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Vocal Tract § Vocal tract can be thought of as a series of linked  tubes. § This linkage provides the variable resonating cavity  that produces sound in three ways: 1. By exploding the air stream with bursts of  pressure 2. By constricting it to generate turbulence, or 3. By resonating it to shape different qualities of tone
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Articulators § Structures used to produce sounds of speech Tongue Lips Pharynx Mandible Velopharynx Tongue is the fastest moving articulator producing 7-10  repititions per second
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Development of the Vocal Tract Major feature is right angle formed by Craniovertebral junction were spinal column joins  the cranium The head and neck are vertically aligned with the long axis of the  body The cranium and vocal tract are bent sharply relative to this axis Right angle is distinct to humans and important characteristic  of the sound production apparatus
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The shape of the human head The shape of the human head preserves two highly  desirable properties: 1. Horizontal orientation of the special sense organs (sight,  smell, and hearing) and the feeding apparatus 2. A straight continuity between the brain stem and the spinal  cord Shape allows for: 1. Erect bipedalism 2. A large brain, which requires a large cranium or bony case 3. A modified oral apparatus (as already described) Advantages
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  • Fall '11
  • CRASS
  • sphenoid bone, Muscles of the head and neck, Velum, Inferior pharyngeal constrictor, pharyngeal constrictor, cavity Pharyngeal cavity

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Articulatory Anatomy Part 1 - Articulatory Anatomy Chapter...

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