I.  Vocal Communication

  A.  Listening Comprehension:
       1.  Cultures' accepted discoursal sound inventory 
       2.  Audio input at the phonetic level:  [ ] 
           a.  Language barrier
           b.  Dialects
           c.  Regional differences
       3.  Recognition at the phonemic level:  / /

Comprehension:  Mental Activity/ Processing

  B.  Language Production:
       1.  Knowledge of culturally accepted discourse
       2.  Recognition at the phonemic level:  / /
       3.  Sound output at the phonetic level:  [ ]
           a.  Place of articulation: 
                 bilabial, labiodental, dental, alveolar, postalveolar, palatal, velar, and glottal. 
           b.  Mode of articulation: 
                 plosive, nasal, fricative, affricate, approximate, and lateral.
           c.  Voiced and voiceless distinction
           d.  Oral and nasal distinction
           e.  Lateral and central distinction
        4.  Syllable structure
           a.  Onset, peak, and coda
           b.  Rhyme
           c.  Consonantal clusters