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Course Content

Classification of sounds according to their articulation

Vowels

  • Produced without any narrowing or obstruction of the airflow in the vocal tract.
  • Examples: [a], [e], [i], [o], [u]

 

CONSONANTS

Plosives (Stop Consonants)

  • Formed by a complete closure of the airflow, followed by a sudden release.
  • Examples: [p], [t], [k], [b], [d], [g]

Fricatives

  • Produced by a narrow constriction in the vocal tract, creating friction noise.
  • Examples: [f], [s], [ʃ], [v], [z]

Nasals

  • The airflow passes through the nose while the oral cavity remains closed.
  • Examples: [m], [n], [ŋ]

Lateral Consonants

  • The airflow moves along the sides of the tongue while the centre is blocked.
  • Example: [l]

Vibrants (Trills)

  • Produced by rapid vibrations of an articulatory organ, such as the tongue tip or uvula.
  • Examples: [r] (alveolar trill) or [ʀ] (uvular trill)

Trills

  • Similar to vibrants but with multiple rapid vibrations of the articulatory organ.
  • Example: [r] (rolled alveolar trill)

Approximants

  • A constriction in the vocal tract that is not tight enough to create friction.
  • Examples: [j], [w], [ɹ]

Affricates

  • A combination of a plosive and a fricative, pronounced in quick succession.
  • Examples: [t͡s], [d͡ʒ], [t͡ʃ]

Glottal Sounds (Glottal Stops)

  • Produced by the vocal cords in the glottis.
  • Example: Glottal stop, e.g. before a stressed vowel in the English phrase “uh-oh”.