Page 17 - 4227
P. 17

the air stream             escapes            noise,  produced  by  turbulence
            that produces a            through the  in the air stream as it is forced

            phonetic effect            mouth.             through the narrow gap etween

            independent of                                the       articulators;         affricates:
            voicing. They                                 complex  sounds  which  consist
            can typically                                 of  two  components  which

            occur in voiced                               correspond  to  two  phases  of

            and voiceless                                 articulation –an oral- stop phase
            variants.                                     followed  with  a  short  friction

                                                          phase. approximants: sounds in

                                                          the  production  of  which  one
                                                          articulator  moves  close  to

                                                          another, though not so close as
                                                          to  cause  aturbulent  as  to

                                                          produce  friction.  r,w,j  are
                                                          termed  central  approximants

                                                          because  air  passes  through  the

                                                          oral tract along the center of the
                                                          opening,  1  is  called  a  lateral

                                                          approximant because air passes
                                                          out  along  the  side/s  of  the

                                                          articulation.  h  is  a  glottal

                                                          approximant.                In         some
                                                          phonological                       systems

                                                          approximants  are  treated  as
                                                          semi-consonants (1, r) or semi-

                                                          vowels (w,j)














                                                            16
   12   13   14   15   16   17   18   19   20   21   22