6. Stop / Plosives
Produced by completely stopping the air passage
and then releasing it.
Articulators – complete closure, airstream cannot
escape through the mouth.
3 stages in the production:-
losing stage
• The two
articulators
move
towards
each other.
Closure stage
• The two
articulators
are in
contact
with each
other.
Release stage
• The two
articulators
move away
from each
other.
7. Fricatives
Fricative Sounds are produced by partly blocking the
air and allowing it partly to escape through a slit or
grove with accompanying friction which sometimes
audible.
Consonant sounds like
F(as in fan)
V(as in van)
Th(as in think)
Th (as in then)
S(as in sun)
8. Affricates
An affricate sound is like a combination of a stop and a
fricative , that is half of an affricate sound is like that of a stop
in its articulation with the air passage completely blocked
while the second half is produced like a fricative with partial
blocking of the air and with partial release
English has two affricate sounds, ’ch’ sound and ’j’ sound, just
like "church" and "judge".
[t∫] - voiceless post - alveolar affricate
[dʒ] - voiced post - alveolar affricate
9. Nasal
Nasal sounds are produced by
releasing the air through the nose.
For example
M(as in man)
N (as in name)
are nasal consonants.
10. Flap or trill
When the tip of an active speech organ that(
is the tongue or the uvula) is tapped once
against a surface within the moth, a flap
sound is produced.
For instance, the r sound (as in run, rain) in
English is a flap. But when the tip of the
active articulation is tapped more than once
in articulation, the resulting sound is trill
11. Lateral
A lateral consonant is produced
when the air escapes from one or
both sides of an articulator(i.e
the tongue). English L(as in long,
late)is a lateral consonant.
12. Frictionless continuant
Some consonants are produced without
blocking the air completely or partially .
They are like vowels and yet they must
be considered consonants.
For example
W (as in wine,wall)
Y (as in yes, you)
Are semi vowels . They are also known
as frictionless continuants