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Title: US5897614: Method and apparatus for sibilant classification in a speech recognition system
[ Derwent Title ]

Country: US United States of America

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11 pages

Inventor: McKiel, Jr., Frank Albert; Plano, 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: 1999-04-27 / 1996-12-20

Application Number: US1996000770881

IPC Code: Advanced: G10L 11/00;
IPC-7: G10L 9/02;

ECLA Code: G10L25/48; S10L25/15;

U.S. Class: Current: 704/208; 704/209; 704/E11.002;
Original: 704/208; 704/209;

Field of Search: 704/231,208,214,266,250,209,207

Priority Number:
1996-12-20  US1996000770881

Abstract:     When a speech signal that may include a sibilant consisting of one or more formants is received, frequencies and selectivity factors are determined for each sibilant formant in the speech signal. Then, the frequencies and selectivity factors are compared to a set of empirically derived criteria to classify the sibilant sound.

Attorney, Agent or Firm: Duffield, Edward H. ; Venglarik, Daniel E. ; Dillon, Andrew J. ;

Primary / Asst. Examiners: Dorvil, Richemond;

Maintenance Status: E1 Expired  Check current status

INPADOC Legal Status: Show legal status actions

Family: None

First Claim:
Show all 12 claims
What is claimed is:     1. A method for classifying sibilants comprising:
  • receiving a speech signal including at least one sibilant;
  • identifying a quality factor for a formant of the at least one sibilant;
  • identifying a center frequency for the formant of the at least one sibilant; and
  • assigning an identity to the at least one sibilant using the quality factor and the center frequency identified for the formant of the at least one sibilant.

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Forward References: Show 2 U.S. patent(s) that reference this one

U.S. References: Go to Result Set: All U.S. references   |  Forward references (2)   |   Backward references (12)   |   Citation Link

Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 8pp US3989896  1976-11 Reitboeck  Westinghouse Electric Corporation Method and apparatus for speech identification
Get PDF - 5pp US4018996  1977-04 Kahn   Communication network protection system
Get PDF - 5pp US4566117  1986-01 Suckle  Motorola, Inc. Speech synthesis system
Get PDF - 14pp US4817155  1989-03 Briar et al.   Method and apparatus for speech analysis
Get PDF - 19pp US4852170  1989-07 Bordeaux  R & D Associates Real time computer speech recognition system
Get PDF - 18pp US4933973  1990-06 Porter  ITT Corporation Apparatus and methods for the selective addition of noise to templates employed in automatic speech recognition systems
Get PDF - 7pp US5133011  1992-07 Mckiel, Jr.  International Business Machines Corporation Method and apparatus for linear vocal control of cursor position
Get PDF - 6pp US5197113  1993-03 Mumolo  Alcatel N.V. Method of and arrangement for distinguishing between voiced and unvoiced speech elements
Get PDF - 10pp US5222190  1993-06 Pawate et al.  Texas Instruments Incorporated Apparatus and method for identifying a speech pattern
Get PDF - 19pp US5231671  1993-07 Gibson et al.  IVL Technologies, Ltd. Method and apparatus for generating vocal harmonies
Get PDF - 9pp US5448679  1995-09 McKiel  International Business Machines Corporation Method and system for speech data compression and regeneration
Get PDF - 18pp US5692104  1997-11 Chow et al.  Apple Computer, Inc. Method and apparatus for detecting end points of speech activity
Foreign References: None

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