LINB04H3 Chapter 6: Notes for Chapter 6 - Understanding Phonology
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3 requirements imposed on a distinctive feature system: capable of characterizing a natural class, capable of describing all segmental contrasts in the world"s languages, definable in phonetic terms. Both the group of segments with the plus value and the group with the minus value form their own natural classes. Major-class features: classify groups like vowels", consonants". Laryngeal features: specify glottal properties of the segment. Manner features: specify the type of constriction. [+cons] have a constriction along the centre of the vocal tract, narrow like that of a fricative. Vowels, glides [w, j, ], [h, , ] [+son] produced with constriction in vocal tract that allows a relatively equal air pressure in front of and behind the constriction. Vowels, glides [w, j, ], liquids, nasals. [-son] either have an oral constriction or no constriction in the vocal tract. Have a constriction that allows a frictionless escape of air.
