Speech Coding and Synthesis Using Parametric ...

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(approximant, nasal, plosive, affricate, fricative and vowel) are described in detail. ..... The palato-alveolar fricatives "S" (voiceless) and "Z" (voiced) are produced.
       

      

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0 0

0 0

1#!$  2@ $ < $=>$! - ($7 %&( '$  7-$;  %''&178;5$%!-$ - ($7 , () &$  "  2                 5&*$ () &$ %.#' (#!&1 '$ '$%(8 '%'$ * &(' & & '$ -((7$ , $%* ) &$-$/ ' $$- $&.7$ ' .7$&( '$ < $=>$! - ($7 , $%* () &$  % ' $&#!$ % - ' '!%&' & .$'$$& $%* () &$/ % ($*!.$( & '$ -$' ( 7 18 *%)'$!2 1#!$  2   '$ '!% $*' !8 , '$ 0!' 7&$ )$*; '!%7 )%!%-$'$! , ! '$  !( 7 "  7 "  %** !(&1 ' '$ 53  63 ) &$'* %7)%.$'  1$&$!%'$( ,! - < $=>$! *#!+$ $1-$&' #&1 ' %))! %*2 $ ($0&&1 ) 781 & %!$ %7  &2 ' %))$%! '%' % &17$ < $=>$! $1-$&'  %.7$ ' - ($7 '$ '!%&' & .$'$$&  & !%&' %($:#%'$78  $+$!/ $!$ %.!#)' '!%&' & %!$ !$:#!$(/ )!&*)%778 (#!&1 )7 +$  #&(/ % - !$ * -)7$9 - ($7  &$$($(2 67 +$  #&( %!$ - ($77$( & -%&8 8&'$;.8;!#7$ 8'$- % % $:#$&*$ , -%77$! )$$*  #&( !$)!$$&'&1 '$ *7 #!$/ !$7$%$ %&( ) ';!$7$%$ )%$  '%' '$ $9'&1 &'$!) 7%' & -$' ( *%& %** -- (%'$ % - !$ * -)7$9 '!% $*' !82   #7( %7 $$- ' .$ % $&.7$ %))! %* ' %( )' & '  !"2  '  ) .7$ ' 7 *%'$ *#$ '%' ($0&$ '$ *7 #!$ %&( !$7$%$ )%$ & )7 +$/ %  & & 1#!$  2 2 4%!1$ ( $!$&*$ .$'$$& %( %*$&' 456 )%!%-$'$! +%7#$ %&( -%9-#- +%7#$ & '$ $&$!18 ,#&*' & ($& '$ % &$ 0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

@

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

−3

11

x 10

Bezier Model (+_) and HMS Model (x.)

10

9

RMS Error

8

7

6

5

4

3

11 12 13 14 15 21 22 23 24 25 31 32 33 34 35 41 42 43 44 45 51 52 53 54 55 Diphone Category

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

       

      

     



  

        

1#!$  2 !% $*' !8 , '$ 0!' 7&$ )$*'!%7 )%! )%!%-$'$! , ! '$  !( 7 "  - ($77$( .8 < $=>$! $1-$&'/ %7  &1 '$ ($0&&1 ) 781 &2 <  2 ' % ) .7$ ' .'%& % * &($!%.7$ %- #&' , (%'% * -)!$ & %  & & %.7$  2 2 1#!$  2   '$ %+$!%1$  5 $!! ! , ! $%*  !(2



LSP Parameters, Plosive "p" 0.5

0 LSP Parameters (Difference), Plosive "p" 0.04 0.035 0.03 0.025 Energy, Plosive "p"

−4

6

x 10

4 2 0 2.55

2.6

2.65

2.7

2.75

2.8

2.85 4

1#!$  2  )7%8&1 456 )%!%-$'$!/ %+$!%1$ ( $!$&*$ .$'$$& %( %*$&' 456 )%!%-$'$! %&( $&$!18 & )7 +$ )  2 x 10

%.7$  2  #-.$! , )$$* )%!%-$'$! (%'% ) &'  %&( &#-.$! , )%; !%-$'$! * &'! 77&1 '$ - ($7 ) 781 & ) &'  2  !( 53  63   %'% ) &' 6 781 & ) &' 7 " 7 "  !  #' % '    , " +    '$  "   &(    &( "   A@ %&(  &   A $$   A  , ,  @  '  '  !  !%&&1 !$  &   A ! 

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



       #!'$! ($% ' -)! +$ %&( $9'$&( '$  !" )!$$&'$( & ' '$ &*7#($ '$ , 77 &1 #!'$! !$$%!*  &$$($( ' ($'$!-&$ #'%.7$ '!%'$1$ , ! .7$&(&1 < $=>$! $1-$&' ' )! (#*$ % &%'#!%7  #&(&1 #''$!%&*$2 $ $9'&1 '!%'$18 )! (#*$ % - ' '!%&' & .$'$$& < $=>$! $1-$&' .8 $&; #!&1 '%' '$ $&( ) &' , $%* $1-$&' * &*($ ' '$ '%!' ) &' , '$ &$9' %&( '%' '$ &$*$%!8 0!' ($!+%'+$ * &'&#'8 * &(' & %))782 



'$! )%!%-$'!* *#!+$ *

#7( .$ #$( ' - ($7 )%!%-$'$! '!%&' &/ )! +(&1 %7'$!&%'+$  7#' & , !  -$ *7%$ , )$$*  #&(2 #!'$! $9)$!-$&'%' & ' '$ < $=>$! - ($7 !($!  #7( .$ $&* #!; %1$(/ & !($! ' 0&( '$ .$' * -)! -$ .$'$$& (%'% * -)!$ & %&( )$$* :#%7'82 3& $  $*'+$ !$8&'$ )! *$(#!$  #7( .$ -)7$-$&'$( & '$ ,#'#!$2 $ !$' !$( 456 )%!%-$'$! %&( %&%78$( )$$* (%'% !$(#%7 * #7( .$ #$( .8 %   2   !" % )! +($( % ($$)$! &1' &' )$$* (%'% %&( % $' , )%' , ! ,#!'$! ($+$7 )-$&'2

 A

         

   

 

    %))$&(9 ( *#-$&' '$ #$/ (#!&1 % )!$7-&%!8 )%$ , !$$%!*/ , % $' , ' 7 ($+$7 )$( ' +#%7>$ $&'$&*$/ ) &$-$ %&( () &$2 $( :#%!$  1$&$!%'$( %  & & 1#!$ 32 2 3 -%'!9 , &    $:#%778 )%*$( ) &'  *!$%'$( 

  

 











 



  

!





LSP Parameters 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0

#:l

U k

aU

t

@v

D @w I n

d@U

=ns

i

I f

I ts

r

eI

nI

N

#:

Look out of the window and see if it’s raining.

1#!$ 32  )7%8&1 456 )%!%-$'$! , $&'$&*$ 7 " #' , '$ &(  %&( $$ , '  !%&&1  7 " % ' " +  "   &( "  &  , ' !$  &     2 & !($! ' ($'$!-&$ '$ &#-.$! , '-$ '$ 456 )%!%-$'$! '!% $*' !$ )% '! #1 % *$!'%& !$1 & '$ , 77 &1 %71 !'- % ($+$7 )$( 

                                                                 !          "           "    "  #  



1#!$ 32  &'$!) 7%' & 1!(2 $ !$#7'&1 +$*' !  07'$!$( #&1 % ! '%' &%7 8--$'!*    %#%& 7 )% 07'$! ' -%& 7 .$ (' , A )9$7 !  2 $ -%1$ (%'%  '$& ()7%8$( %  & & 1#!$ 32! %&( 1#!$ 32@2    

            $ ) &$-$ %&& '%' & 07$ &*7#($ &, !-%' & ($&',8&1 '$ $&'$&*$ ,! - * ' % .$$& $9'!%*'$( %&( '$ !1&%7 '%!'&1 %&( $&(&1 ,!%-$2    & $& ()7%8&1 '$ &(+(#%7 $9%-)7$ % & 1#!$ 32 2  ' *%& .$ *7$%!78 $$& & 1#!$ 32A %&( 1#!$ 32! '%' ) &$-$   )!$$&' 1 +%!%.7'82 $ (%'% % .$$& & !-%7>$( %&( %77 '$ $9%-)7$ %!$  &2

 @

Phoneme 3 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05

1#!$ 32  )7%8&1 456 )%!%-$'$! , ) &$-$   **#!!&1 & '$ $&'$&*$ '%&" 8 # , ! 1+&1 -$ '$ ) $! ' ' #! '$  !7(    "  # , " 1 +   -  " )% " ' " '  "  7(               1#!$ 32   %77 '$ $9%-)7$ , () &$  &  2 $ 456 )%!%-$'$! %!$ ()7%8$( %,'$! & !-%7>%' & %&( !$%-)7&12   '$ !$#7' , )! *$&1 '$ (%'% .$, !$ '$ %*'#%7 *#!+$ 0''&1 -$' (  %))7$(2 ' *%& .$ $$& & 1#!$ 32@ '%' '$  456 )%!%-$'$! %!$ ()$!$(/ $!$% '$ )%!%-$'$! & 1#!$ 32! * &*$&'!%'$ & !$7%'+$78 ('&*' !$1 & , )%*$2 0

0.1

0.2

0.3

0.4

0.5

 

0.6

0.7

0.8

0.9

1

Phoneme 3 (LSP 1) Phoneme 3 (LSP 2)

0.08

Phoneme 3 (LSP 3)

0.3

0.35

0.25

0.3

0.2

0.25

0.07

0.06

0.05

0.04

0.15

0.2

0.1

0.15

0.05

0.1

0.03

0.02

0.01

0 0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

0 0

1

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

0.05 0

1

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

0.7

0.8

0.9

1

Phoneme 3 (LSP 5) Phoneme 3 (LSP 4)

Phoneme 3 (LSP 6)

0.55

0.45

0.6

0.5

0.4

0.55

0.45

0.35

0.5

0.4

0.3

0.45

0.25

0.35

0.4

0.2

0.3

0.35

0.25

0.15

0.1 0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

0.2 0

1

0.3

0.1

0.2

0.3

Phoneme 3 (LSP 7)

0.4

0.5

0.6

0.7

0.8

0.9

0.25 0

1

0.7

0.6

0.65

0.55

0.6

0.7

0.65

0.4

0.45

0.5

0.6

0.6

0.8

0.5

0.4

0.5

0.75

0.55

0.3

0.4

0.85

0.5

0.2

0.3

0.9

0.45

0.1

0.2

Phoneme 3 (LSP 9)

0.75

0.65

0.35 0

0.1

Phoneme 3 (LSP 8)

0.7

0.7

0.8

0.9

1

0.4 0

0.6

0.1

0.2

0.3

Phoneme 3 (LSP 10)

0.4

0.5

0.6

0.7

0.8

0.9

1

0.55 0

0.1

0.2

0.3

Phoneme 3 (LSP 11)

0.95

0.4

0.5

0.6

0.7

0.8

0.9

1

Phoneme 3 (LSP 12)

0.98

1 0.99

0.96 0.9

0.98 0.94

0.85

0.97 0.96

0.92

0.95 0.9

0.8

0.94 0.93

0.88 0.75

0.92 0.86 0.91

1#!$ 32A  )7%8&1 456 )%!%-$'$! , ) &$-$ )$$* * !)#  2 0.7 0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

0.84 0

0.1

0.2

0.3

0.4

0.5



0.6

0.7

0.8

0.9

1

0.9 0

0.1

0.2

0.3

0.4

 

%77 0.5

0.6

$9%-)7$ & 0.7

0.8

0.9

1

Phoneme 3 (LSP 1)

Phoneme 3 (LSP 2)

Phoneme 3 (LSP 3)

Phoneme 3 (LSP 4)

Phoneme 3 (LSP 5)

Phoneme 3 (LSP 6)

Phoneme 3 (LSP 7)

Phoneme 3 (LSP 8)

Phoneme 3 (LSP 9)

Phoneme 3 (LSP 10)

Phoneme 3 (LSP 11)

Phoneme 3 (LSP 12)

1#!$ 32!  )7%8&1  %#%& "$!&$7 &'$!) 7%' & !$#7' , ! 456 )%!%-; $'$! , ) &$-$   %77 $9%-)7$ & )$$* * !)#  2 

Diphone E_n (LSP 1)

Diphone E_n (LSP 2) Diphone E_n (LSP 3)

0.06

0.14

0.05

0.12

0.04

0.1

0.03

0.08

0.02

0.06

0.2

0.01

0.04

0.18

0 0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

0.28

0.26

0.24

0.22

0.02 0

1

0.1

0.2

0.3

Diphone E_n (LSP 4)

0.4

0.5

0.6

0.7

0.8

0.9

0.16 0

1

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

Diphone E_n (LSP 6)

Diphone E_n (LSP 5)

0.5

0.34 0.4

0.32 0.38

0.45

0.3

0.28

0.36

0.26

0.4

0.34

0.24

0.32

0.22

0

0.2 0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

0.35 0

1

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

Diphone E_n (LSP 8) Diphone E_n (LSP 7)

Diphone E_n (LSP 9)

0.75

0.7

0.9

0.7

0.65

0.85

0.65

0.6

0.8

0.55

0.6

0.5

0.55

0.7

0.45

0.5

0.65

0.4 0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

0.45 0

0.75

0.1

0.2

0.3

Diphone E_n (LSP 10)

0.4

0.5

0.6

0.7

0.8

0.9

1

0.6 0

0.1

0.2

0.3

Diphone E_n (LSP 11)

0.92

0.4

0.5

0.6

0.7

0.8

0.9

1

Diphone E_n (LSP 12)

0.98

1

0.9

0.99 0.96

0.88

0.98

0.86 0.94

0.97

0.84 0.96 0.82

0.92 0.95

0.8 0.9

0.94

0.78 0.93

0.76 0.88

0.92

0.74

1#!$ 32  )7%8&1 456 )%!%-$'$! , () &$  &  %77 $9%-)7$ & )$$* * !)#  2 0.72 0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

0.86 0

0.1

0.2

0.3

0.4

0.5



0.6

0.7

0.8

0.9

1

0.91 0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

Diphone E_n (LSP 1)

Diphone E_n (LSP 2)

Diphone E_n (LSP 3)

Diphone E_n (LSP 4)

Diphone E_n (LSP 5)

Diphone E_n (LSP 6)

Diphone E_n (LSP 7)

Diphone E_n (LSP 8)

Diphone E_n (LSP 9)

Diphone E_n (LSP 10)

Diphone E_n (LSP 11)

Diphone E_n (LSP 12)

1#!$ 32@  )7%8&1  %#%& "$!&$7 &'$!) 7%' & !$#7' , ! 456 )%!%-; $'$! , () &$  &  %77 $9%-)7$ & )$$* * !)#  2 

    

       

    

   %))$&(9 )!$$&' ($'%7$( &, !-%' & %. #' '$ , !-%' , 07$ & '$ )$$* * !)# %&( )! (#*$( .8 '$ 456 %&%782 $ )$$* 07$ , !-%'   .' 7&$%! #&1&$( %-)7$ %' % !%'$ ,  >2 

        

     

%.7$ &1 + *$( %7+$ 7%!  $$! + *$7$ )%7%' ;%7+$ 7%!  '!$%#!$ + *$( )%7%' ;%7+$ 7%!   $%! + *$7$ 17 ''%7 















%.7$
A2   %+& 2 %7$82        !       A



     

 

  



 

 

  

  

  





  



 

2 62 2 $/  $)%!'-$&' , 7$*'! &* 58'$- &1&$$!&1/ &+$!'8 , $9/ $9/ 2 2/  %!* 

 2 @  %+& 2 %7$8 %&( 32  2 62  !$$&2 $ %))7*%' & , &$#!%7 &$';  !" ' * 1&'+$ ) &$'* - ($77&12  &    """

    #     ! / )%1$      A/ < #!&$- #'/ 2 2/ 

 2



    



 









 



    

  



 





 



  

  



  %+&

2 %7$8 %&( 62  2  %"$2  ) &$ 8&'$ #&1 % &$#; !%7 &$' !"2  &    """

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