Speech synthesizer

Details Speech synthesizer Speech synthesizer

2011-08-02

2011-08-02

Chawan, Vijay (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

Synthesis

C704S258000, C704S259000, C704S256000, C704S267000, C434S116000, C434S169000, C345S473000, C341S050000

Reexamination Certificate

active

07991616

ABSTRACT:
The present invention is a speech synthesizer that generates speech data of text including a fixed part and a variable part, in combination with recorded speech and rule-based synthetic speech. The speech synthesizer is a high-quality one in which recorded speech and synthetic speech are concatenated with the discontinuity of timbres and prosodies not perceived. The speech synthesizer includes: a recorded speech database that previously stores recorded speech data including a recorded fixed part; a rule-based synthesizer that generates rule-based synthetic speech data including a variable part and at least part of the fixed part, from received text; a concatenation boundary calculator that a concatenation boundary position in a region in which the recorded speech data and the rule-based synthetic speech data overlap, based on acoustic characteristics of the recorded speech data and the rule-based synthetic speech data that correspond to the text; a concatenative synthesizer that generates synthetic speech data corresponding to the text by concatenating the recorded speech data and the rule-based synthetic speech data that are segmented in the concatenation boundary position.

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