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From text to speech: The MITalk system
Oldval[f2, f3] « 1100, 1500 / [ +v§lar] [ +1etro
Oldval[f3] « 2100/ [ +alv§olar] [ +re_t_ro]
Oldval[f3] « 1700/ [ +1a§ia1] [ +retro
Target]f2, £3] « 900, 2000/ | *Wgide ] [ +velar]
ELSE Target[f2] « 1900
Oldval[f2] « 1850/ [ +alveolaslr, +stop] [ +f2back]
C.10 Modifications
J—
[ Target[f]..f3] «
‘
f2 transitions involving f2back segments are shorter:
Teflf2] L 20/ [ H2gack |
Minimum formant separation is 200 Hz: raise Target[f2..f4] such that separa-
tion is at least 200Hz.
Set boundary values and Tcb:
Tcb[av..f0] « Tcf[av..f0]
| Bvalffav..f0] « (Bper[av..f0] * Target[av..f0]
+ (100 - Bper{av..f0]) * Oldval[av..f0]) / 100
Discontinuous formant jump in a lateral release:
Balflf1,2] 150, Bvalbie1, 2] 4 50/ | +ageral | —
DISSMO in diphthongs are changed to SMOOTH, so change boundary in-
stead:
Bvalb[fl..£3] « Oldval[fl..f3] / [ +ngsa1] [ +diP_*1t_h°ng]
Special treatment for amplitude parameters:
200
