Use of Speech Recognition in Computer-assisted ...

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Pronunciation Teaching

Non-native Speech

CALL Chap 2

Chap 3

Non-native Database Chap 5

Performance Measures

Adaptation Theory Chap 4

Chap 8

GOP Scoring Chap 9

Evaluation of Adaptation

Accent Prediction

Chap 6

Chap 7

Conclusion Chap 10

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Alignment of accented test data with

Alignments of accented test data with

the source language models

the target language models

using a phoneme loop

using the dictionary based transcriptions

Comparison of the alignments: Count how often each target model has been aligned with each source model

For each target phone choose that

source phone as a mapping phone

with which it has been most often aligned.

Verify mapping manually with given phonetic knowledge

Final mapping with one mapped source model for each target model.

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30

25

20

15

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5 10 15 20 Number of adaptation sentence



25

P p R FL G>* K[;G& G ,@* N 4 * 1 V_/ , 3 Kf;G& 364 & 21 1 @@ G -4 1 ( 1 ( & 0,@36,Z/ 1 , 1 4 ; * m1 - +*SP s 4 -& +,@* 54 ,@36,Z/ 1 , 1 4 ; 36, 1 ,{3 ; +* ; 1 H 4 N 3`, mH / &8K[;G&h\ , - d4 -& +,@* @P ƒK \k;G& j36, 1 , , & 5,+CZ,@4 N , G N \ ;G& d/W, & , \ 1 & * - , UG +* 1 4 \ , 1 +3 & N 47, G N H P u1 ( - ,@* ;@Ki\k;G& 36, 1 , T G ND;B- ?mA 3647, ?@; , N ;G&MK V N7N 1 & , * K[;G&h\ , 1 4 ; \ , 1 & 4 - +* H 4 N 3‚*84 ? 4 - , m1 N H ND; = & = ;G& 3 &&8;G& & , 1 +*SP 1U;G& ; C &+T =R4 1 ( \ ;G& M,@36,Z/ 1 , 1 4 ; 36, 1 ,* SC & , N 1 & , * K[;G&h\ * - , tG - , N7- V N , 1 +3 Kf;G&5?G&8; V_/W* ;@K 1 1 *w4 * 1 +,@3 ;@K ,g*84 ?ON ?OND; G , N 1 & , * K[G; &h\ , 1 4 ; \ , 1 & 4 v ; N H P u1 (647* 4 1 ({, & G? & +*8*84 ; 1 & i=>4 1 ( G? &8; V_/W* ;@K 1 & , * KfG; &.\ *SP ( 4 ? V & P p T 4 1 - , wG ~* 51 (W, 1 , 4 - & +,@* ~4 ,@36,Z/ A 1 , 1 4 ; 36, 1 , G H ; 3 1 ( \ 4 4 \ V \ ;@K † * 21 - +*3 ; +* ; 1 4 \ / &8; C 1 ( j/ &8K[G; &h\ , K[G; &d\k; * 1 * 1 V_/|* 4 1 & , 1 4 ; *~( ; = SC & ( N / 1 ; & +36V - 1 ( \ 47*8, N 4 ? \ 21 *+P s*8V \ \ , & H ;@K 1 ( , - 1 V6, N = G; & 3 &&8G; & & , 1 +* K[G; & G ; 1 ( & ,Z/|473‚,@3W,Z/ 1 , 1 4 ; T 4‡P @P G; &)… ,@36,Z/ 1 , 1 4 ; * 21 - +*>, 3 K V N9N * - , N k,@36,Z/ 1 , 1 4 ; M q g* m1 - +* O 47* ? 4DC 4 c , G N P p P5c)( w/ &8K[G; &h\ , - ;@K 1 ( S= , ND?@G; & 4 1 ( \ *E=>4 N9N G \ +,@*hV & +3g, ? ,@4 * 1y1 ( +* & +*8V N 1 *SP 






































 




















































































 





















 














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„ ,@36,Z/ 1 , 1 4 ; T ( 4 ? V & P q *8( ; =R* 3 & ,+= G , - ? ;@K 1 (647* @
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.( ; 4 ;@K , &  1 4 ; t1 ( & +*8( ;ON 3 3 1 &h\ 4 +*y( ; = * 1 & 4 1y1 ( d* ;G& 4 ? * H * 1 \ =>4 N7N G @Pc)(647*    /' " &  '& L iT S, G )3 +3k,@* 1 ( ; C & , N7N6K & , 1 4 ; ;@K /W( ; +* =>(64.(k, & &  1 +3 T 4‡P @P & N , 1 4DC >* 1 & 4 1 +*8*  EN ; 4N 
M#"IP q O F  F   F   CD ; 4N   EN F s*}, 36, 1 , G ,@* >V6* +3 KfG; & ,@*h* +*8* \ m1 FT  * „ (6,Z/ 1 & †  ; 21 ,@4 *},d* 1 ;@K S, N 4 G & , 1 4 ; * 21  +* =R(64 h(j= & N , G N +3 GmH *84 vj364  & m1 8V63 ? +*SP  4 ? V & "IP q *h( ; =>* 1 ( * 1 & 4  1 +*8* ;@K 1 ( FVW3 ? +* K[G; & 1 ( +* S, N 4 G & , 1 4 ; * m1  +*i=>( & 1 ( \ +, , 3‚* 1 , 36, & 3 3 SCB47, 1 4 ; , & 9 p " , 3   † .T & +*F/  1 4DC N H P s *84 \ / N w=i, Hn1 ;  ;O\ /W, & 1 ( * 1 & 4  1 +*h* ;@K 1 = ; FVW3 ? +*  p , !3  q 47* 1 ; V6* 1 ( 364  &  G 1 = * 1 & 4  1 +*h* N SC N * K[G; & 1 ( 1 = ; & K &  +* T 4^P @P M#"IP r O "  O $#  $#  O 





 


































































 





























































































 












 










 



















 



 










 

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0.15

0.1

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