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Intonation component of a text-to-speech system for Hindi

✍ Scribed by A.S. Madhukumar; S. Rajendran; B. Yegnanarayana

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
540 KB
Volume
7
Category
Article
ISSN
0885-2308

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✦ Synopsis

In this paper, we describe some features of the fundamental frequency (\left(\mathrm{F}{0}\right)) contours of speech in Hindi and propose an approach to represent and activate this intonation knowledge for an unrestricted text-to-speech system for Hindi. As in most languages, the declarative sentences in Hindi show a declining pattern of (\mathrm{F}{0}) contour, whereas interrogative sentences show a rising (F_{0}) contour. The backdrop declining or rising pattern is characterized by local falls and rises which are determined by the phonological pattern of the constituent words. In complex declarative sentences the (F_{0}) contour resets at major syntactic boundaries. Experiments to obtain the inherent (F_{0}) of segments are described. The intonation knowledge derived from analysis of speech is coded in a production system format. Intelligibility and naturalness of the synthesized speech improved significantly after incorporation of the intonation rules.

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