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Title: US5715368: Speech synthesis system and method utilizing phenome information and rhythm imformation
[ Derwent Title ]

Country: US United States of America

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9 pages

Inventor: Saito, Takashi; Tokyo-to, Japan
Okochi, Masaaki; Yokohama, Japan

Assignee: International Business Machines Corporation, Armonk, NY
other patents from INTERNATIONAL BUSINESS MACHINES CORPORATION (280070) (approx. 44,393)
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Published / Filed: 1998-02-03 / 1995-06-27

Application Number: US1995000495155

IPC Code: Advanced: G06F 17/27; G10L 13/06; G10L 13/08;
IPC-7: G10L 5/04;

ECLA Code: G10L13/10; S10L13/08;

U.S. Class: Current: 704/268; 704/260; 704/E13.013;
Original: 395/002.77; 395/002.69;

Field of Search: 395/2.77,2.67,2.69,2.66,2.64,2.63,2.75

Priority Number:
1994-10-19  JP1994000253190

Abstract:     To synthesize speech, which is clear and high in naturalness, in a Japanese-language speech synthesis system by improving not only phoneme information but also rhythm information. In the Japanese-language, the independent word speech and the adjunct word speech are remarkably different in speech characteristic. The difference in speech characteristics between them is clearly observed, particularly in rhythmical elements such as the intensity, speech, and pitch of speech. From this fact, there is provided a new rule synthesis method which uses as a speech synthesis unit an adjunct word chain unit comprising a chain of one or more adjunct words and which is capable of synthesizing speech whose naturalness is high. The portion other than the adjunct word portion, i.e., the independent word portion, is constituted in a CV/VC unit.

Primary / Asst. Examiners: MacDonald, Allen R.; Dorvil, Richemond

Maintenance Status: E3 Expired  Check current status

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First Claim:
Show all 15 claims
We claim:     1. A speech synthesis system for synthesizing speech based on input text data, comprising:
  • (a) a text analysis word dictionary in which a plurality of words and at least the reading, accent, and part of speech for each word are stored;
  • (b) a text analysis means for resolving said input text data into elements by morphological analysis and providing information on the reading, accent, and part of speech of each of the resolved elements by referencing to said text analysis word dictionary and also providing information on the text structure of said text data;
  • (c) a rhythm control means for generating a pitch pattern and setting a phonemic power and a phonemic time length, based on said information provided by said text analysis means;
  • (d) a synthesis unit dictionary in which an independent word synthesis unit dictionary including a plurality of independent word synthesis units and an adjunct word chain synthesis unit dictionary including a plurality of adjunct word chain synthesis units are stored;
  • (e) a synthesis unit selection means for obtaining, based on said information on the part of speech provided by said text analysis means, necessary independent word synthesis units from said independent word synthesis unit dictionary in response to said part of speech being an independent word and for obtaining corresponding adjunct word chain synthesis units from said adjunct word chain synthesis unit dictionary in response to an adjunct word chain being found; and
  • (f) a speech generation means for outputting synthetic speech, based on said pitch pattern, phonemic power, and phonemic time length provided by said rhythm control means and on said synthesis units provided by said synthesis unit selection means.

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Forward References: Show 14 U.S. patent(s) that reference this one

U.S. References: Go to Result Set: All U.S. references   |  Forward references (14)   |   Backward references (5)   |   Citation Link

Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 7pp US3892919  1975-07 Ichikawa  Hitachi, Ltd. Speech synthesis system
Get PDF - 8pp US4862504  1989-08 Nomura  Kabushiki Kaisha Toshiba Speech synthesis system of rule-synthesis type
Get PDF - 45pp US5220629  1993-06 Kosaka et al.  Canon Kabushiki Kaisha Speech synthesis apparatus and method
Get PDF - 9pp US5283833  1994-02 Church et al.  AT&T Bell Laboratories Method and apparatus for speech processing using morphology and rhyming
Get PDF - 8pp US5396577  1995-03 Oikawa et al.  Sony Corporation Speech synthesis apparatus for rapid speed reading
Foreign References: None

Other Abstract Info: DERABS G96-303584

Other References:
  • IEEE Transactions on Consumer electronics, Goto et al, "Microprocessor Based English Speech Training System", pp. 824-834, vol. 34, No. 3, Aug. 1988. (10 pages)

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