Pitch Contour Generation In Speech Synthesis: A Junction Grammar Approach

SUMMARY Computer based t e x t s y n t h e s i s systems r e q u i r e a means f o r generating s e n t e n c e-l e v e l p i t c h c o n t o u r s-These c o n t o u r s must have a k e r t a i n d e g r e e o f "human f i d e l i t y " i f t h e s y n t h e t i c speech i s t o sound n a t u r a l and n o t t o o machine-like. The p i t c h contowrs i n c u t r e n t l y-o p e r a t i o n a l t e x t s y n t h e s i s systems a r e s t i l l n o t p e r f e c t l y n a t u r a l-sounding and t h u s computer g e n e r a t i o n of p i t c h c o n t o u r s i s a t o p i c of c u r r e n t i n t e r e s t. t h e s e n t e n c e he boys who s t u d y g e t good g r a d e s , " i f t h e c o n t e x t i s "but t h e boys who d o n ' t g e t bad grades." On t h e o t h e r h a d , i f t h e c o n t e x t i s "but t h e g i r l s who s t u d y g e t poor g r a d e s , " then t h e r e i s probably stress on "boys." f r o m a J u n c t i o n Grammar s e m a n t i c o-s y …