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Title: US5325462: System and method for speech synthesis employing improved formant composition
[ Derwent Title ]

Country: US United States of America

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14 pages

Inventor: Farrett, Peter W.; Austin, TX

Assignee: International Business Machines Corporation, Armonk, NY
other patents from INTERNATIONAL BUSINESS MACHINES CORPORATION (280070) (approx. 44,393)
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Published / Filed: 1994-06-28 / 1992-08-03

Application Number: US1992000923635

IPC Code: Advanced: G10L 13/00; G10L 13/02; G10L 13/06; G10L 21/02;
IPC-7: G10L 9/02;

ECLA Code: G10L13/033; G10L21/02A4; S10L25/15;

U.S. Class: Current: 704/258; 704/268; 704/E13.004; 704/E21.009;
Original: 395/002.67; 381/051;

Field of Search: 381/051,52 395/2.67,2.77

Priority Number:
1992-08-03  US1992000923635

Abstract:     A method, system and process to improve the formant composition in a speech synthesis system so that the formants are more intelligible. The system employs a process in the memory of a processor to change the starting and ending frequency of phonemes from the frequency of the independent phonemes. The process examines preceding and succeeding ending phoneme frequency values to detect similar phoneme frequency values. If a dissimilar value is detected, then the invention provides for exchange of the formants to render the resulting speech more intelligible.

Attorney, Agent or Firm: Walker, Mark S. ;

Primary / Asst. Examiners: MacDonald, Allen R.; Kim, Richard J.

Maintenance Status: E2 Expired  Check current status

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Designated Country: DE FR GB 

Family: Show 4 known family members

First Claim:
Show all 10 claims
I claim:     1. A speech synthesis apparatus, comprising:
  • (a) memory means for receiving a plurality of data blocks each representing unit of speech information;
  • (b) means for identifying and parsing at least a first formant in a first one of said data blocks and a second formant in a second one of said data blocks;
  • (c) means for comparing the first formant and the second formant;
  • (d) means for replacing the first formant in a portion of said first data block by said second formant and replacing the second formant in a portion of said second data block by said first formant if the first formant and the second formant do not match; and
  • (e) means for synthesizing the plurality of data blocks into audio signals.

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Forward References: Show 8 U.S. patent(s) that reference this one

U.S. References: Go to Result Set: All U.S. references   |  Forward references (8)   |   Backward references (7)   |   Citation Link

Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 18pp US3632887  1972-01 Leipp et al.  Agence Nationale de Valorisation de la Recherche A.N.V.A.R. PRINTED DATA TO SPEECH SYNTHESIZER USING PHONEME-PAIR COMPARISON
Get PDF - 47pp US4685135  1987-08 Lin et al.  Texas Instruments Incorporated Text-to-speech synthesis system
Get PDF - 10pp US4689817  1987-08 Kroon  U.S. Philips Corporation Device for generating the audio information of a set of characters
Get PDF - 33pp US4802223  1989-01 Lin et al.  Texas Instruments Incorporated Low data rate speech encoding employing syllable pitch patterns
Get PDF - 10pp US4896359  1990-01 Yamamoto et al.  Kokusai Denshin Denwa, Co., Ltd. Speech synthesis system by rule using phonemes as systhesis units
Get PDF - 13pp US4914702  1990-04 Taguchi  NEC Corporation Formant pattern matching vocoder
Get PDF - 20pp US4979216  1990-12 Malsheen et al.   Text to speech synthesis system and method using context dependent vowel allophones
Foreign References: None

Other Abstract Info: DERABS G94-044398

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