???????ATR/ Universit

1
???????????????????????

• ??????? ATR/ Université Paris III - CNRS
• ???? ATR
• ???? ATR
• ???? ENST/CNRS

mtoda_at_atr.co.jp
2
????

• ???/s/?/?/?????, ?????????????????????(Harris,1958
  ).

dB
dB
/s/
/?/
Hz
Hz
????????
3
/s/
/?/

• ??????? (alveolar fricative)
• ?????????? (Ladefoged Maddieson, 1996).

• ?????????(post-alveolar fricative)
• ???????????????(Perkell et al., 1979).
• ??????????.(Toda et al., ICPhS 2003)

4

• ??,/s/?/?/?????????????????????????????

5
??

• 1???/s/?/?/????,???????????????????????????.

6
??
7
??(??)

• MR???????3???????????????.
• ??????????????????????,????????????.
• ????????????????????????????????.

8
MR???????????

• ?????1?
• ????/s/?/?/?????(????30?,?????)
• ?????
• ????????????????(Mimics(Materialize?) )
• ??????,???? SP2003-56 ???

9
?????
/s/
/?/
???
????
???
???
??
??

• ???????????????, ??100mm,?100mm,?????????50mm??.

• Hypermesh(Altair?)???????????????(???,????19?)

10
????????

• Sysnoise (LMS?)????50 Hz ?? 8000 Hz ?????????, 50
  Hz ??????????????????.
• ??(???)?2??(dipole)??, ??????????????????.
• ????
• ??????????????????????????c???(? 1.733 kg/m3 c
  346.37 m/s).
• ????????.

11
??
12
??????
???????? ????2cm??????
??
/s/
/?/
13
???????????/s/
14
??
15
???????????/?/
16
??????
17
??????

• MR???????/s/?/?/???????????.
• 2????????????????????,?????????????????????.
• /s/?/?/????????????????????.
• ???,/?/???????6kHz???????????????????????.
• ??????????

18
?????? (?)

• ??/s/?/?/??????????????????,????????? ????.
• /s/???????????????,?????????????????????????????.
• /?/????????????????????????????.
• /?/ ?????, Stevens (1998) ??????????????????.

19
/?/???????(Stevens, Acoustic Phonetics, 1998)

• ????????????????????????????.
• ?????????????,??,??????????????????????.

20
???????????????????????????????????????????????
.
21
(No Transcript)
22
????

• K.S. Harris (1958), Cues for the discrimination
  of American English fricatives in spoken
  syllables, Language and Speech, 11-7.
• P. Ladefoged and I. Maddieson (1996), The sounds
  of the worlds languages, Blackwell.
• J. S. Perkell, S. Boyce and K. N. Stevens (1979),
  Articulatory and acoustic correlates of the
  s-š distinction, in Speech communications
  papers presented at the 97th meeting of the ASA,
  J. J. Wolf and D. K. Klatt (eds.), Acoust. Soc.
  Am., New York, 109-113.
• M. Toda, S. Maeda, A. J. Carlen and L. Meftahi
  (2003), Lip protrusion/rounding dissociation in
  French and English consonants /w/ vs. /S/ and
  /Z/ , proc. 15th ICPhS 2003, Barcelona.
• K. N. Stevens (1998), Acoustic phonetics, The MIT
  Press, Cambridge, MA, 404-405.
• ???????? (2003) ?MRI??????????????????????????,
  ????SP2003-56.
• C. H. Shadle (1985), The acoustics of fricative
  consonants, Ph. D. thesis, MIT, Cambridge, MA.
• ???????? (2003) ??????MRI????????????,
  ???????????, no.2-3-9, pp. 293-294, March 2003.

23
MRI??

• Shimadzu-Marconi Eclipse 1.5
• ??
• - Fast3D?TE3.3ms?TR10ms??????
  1????0.5?0.5mm??????1.5mm? ????256?256?60mm?????
  ?????30?
• ??
• Spin Echo?TE11ms?TR3000ms??????
  1????0.5?0.5mm??????1.5mm? ????256?256?76.5mm
• ???(2003)???????????????????????(?????3?)

24
????
Intage RV
Mimics
25
/?/??????? (Stevens, 1998)
MRI???/?/?????????????????????
K. N. Stevens, 1998 p.404-405 ??
26
?? ?1

• /s/?/?/???????????????,????????????????,??????????
  ??????????????????(Shadle, 1985).
• ????????2??(dipole)?????(Stevens, 1998).
• ??????????????,???????????.

27
?? ?2

• 2??????????????????????????????,??????????????????
  ??1????????????.????????,??????????.
• ?????????????(???)????.
• P A
• 2?????,????????2????????(1mm??)??????????.

28
(No Transcript)