16. 4
5
6
Nasal: Air release through the nasal passage – m, n, ŋ
Liquid: the articulators approach each other, but to such an extent there is a free
passage of air through the oral tract – l
Glide: No friction, but lasting sound - w, j
21. Vowels are sonorous, syllabic sounds made with the
vocal tract more open than it is for consonant and
glide articulations. Different vowel sounds are
produced by varying the placement of the body of
the tongue and shaping the lips.
The shape of the vocal tract can be further altered
by protruding the lips to produce rounded vowels, or
by
lowering the velum to produce a nasal vowel.
Finally, vowels may be tense or lax, depending
on the degree of vocal tract constriction during their
articulation. REMEMBER that for vowels
your tongue tip is behind your
lower, front teeth
22. VOWELS
SIMPLE VOWELS
DIPHTHONGS
Simple vowels do not show a
noticeable change in quality. The
vowels of pit, set, cat, dog, but,
put and the first vowel of
suppose are all simple vowels.
Diphthongs are vowels that exhibit a
change in quality within a single syllable.
English diphthongs show changes in
quality that are due to tongue
movement away from the initial vowel
articulation towards another vowel
position. This change in vowel quality is
clearly perceptible in words such as say,
buy, cow, ice, lout, go and boy. The first
part of a diphthong is much longer and
perceptually more salient than the
second.