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Title: US6343270: Method for increasing dialect precision and usability in speech recognition and text-to-speech systems
[ Derwent Title ]

Country: US United States of America

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9 pages

Inventor: Bahl, Lalit R.; Port Jefferson, NY
Cohen, Paul S.; Yorktown Heights, NY

Assignee: International Business Machines Corporation, Armonk, NY
other patents from INTERNATIONAL BUSINESS MACHINES CORPORATION (280070) (approx. 44,393)
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Published / Filed: 2002-01-29 / 1998-12-09

Application Number: US1998000207966

IPC Code: Advanced: G10L 13/08; G10L 15/06; G10L 15/18; G10L 15/22;
IPC-7: G10L 15/18; G10L 15/26;

ECLA Code: G10L13/08; G10L15/065; G10L15/187;

U.S. Class: Current: 704/257; 704/235; 704/260; 704/E13.012; 704/E15.009; 704/E15.02;
Original: 704/257; 704/235; 704/260;

Field of Search: 704/235,257,260

Priority Number:
1998-12-09  US1998000207966

Abstract:     In accordance with the present invention, a method for increasing both dialect precision and usability in speech recognition and text-to-speech systems is described. The invention generates non-linear (i.e. encoded)baseform representations for words and phrases from a pronunciation lexicon. The baseform representations are encoded to incorporate both pronunciation variations and dialectal variations. The encoded baseform representations may be later expanded (i.e. decoded) into one or more linear dialect specific baseform representations, utilizing a set of dialect specific phonological rules.The method comprises the steps of: constructing an encoded pronunciation lexicon having a plurality of encoded and unencoded baseforms; inputting one or more user specified dialects; selecting dialect specific phonological rules from a rule set database; and decoding the encoded pronunciation lexicon using the dialect specific phonological rules to yield a dialect specific decoded pronunciation lexicon.

Attorney, Agent or Firm: F. Chau & Associates,LLP ;

Primary / Asst. Examiners: Smits, Talivaldis I.;

INPADOC Legal Status: Show legal status actions

Family: None

First Claim:
Show all 24 claims
What is claimed:     1. A method for generating a dialect specific pronunciation lexicon, the method comprising the steps of:
  • a) constructing an encoded pronunciation lexicon, said encoded pronunciation lexicon including a plurality of nonlinear baseforms encoded nonlinearly to include one of dialectal and pronunciation alternatives;
  • b) inputting one or more user specified dialects;
  • c) selecting phonological rule sets from a rule set database responsive to said one or more user specified dialects; and
  • d) decoding the encoded pronunciation lexicon by applying the phonological rule sets to the encoded pronunciation lexicon yielding a dialect specific decoded pronunciation lexicon including a plurality of linear dialect specific baseforms.

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Forward References: Show 19 U.S. patent(s) that reference this one

U.S. References: Go to Result Set: All U.S. references   |  Forward references (19)   |   Backward references (4)   |   Citation Link

Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 6pp US5694520  1997-12 Lyberg  Telia AB Method and device for speech recognition
Get PDF - 8pp US5865626  1999-02 Beattie et al.  GTE Internetworking Incorporated Multi-dialect speech recognition method and apparatus
Get PDF - 12pp US6061646  2000-05 Martino et al.  International Business Machines Corp. Kiosk for multiple spoken languages
Get PDF - 6pp US6064963  2000-05 Gainsboro  Opus Telecom, L.L.C. Automatic key word or phrase speech recognition for the corrections industry
Foreign References: None

Other References:
  • A. P. Breen, et al. "Designing the next generation of text-to-speech systems," Proc. IEE Colloquium on Techniques for Speech Processing and their Applications, vol. 6, p. 1-5, 1994.*
  • Francis Kubala, et al. "Transcribing radio news", Proc. International Conference on Spoken Language, ICSLP 96, vol. 2, p. 598-601, Oct. 1996.*
  • James Bonnyman, et al. "Real time analysis for the synthesis of high quality male, female and child speech", Proc. Third IEEE Symp. on Electronics, Circuits, and Systems, ICECS 96, vol. 1, p. 530-533, Oct. 1996.*
  • V. Diakoloukas, et al. "Development of dialect-specific speech recognizers using adaptation methods," Proc. IEEE ICASSP 97, vol. 2, p. 1455-1458, Apr. 1997.

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