ES2169432T3 - Procedimiento para la adaptacion de un modelo de sonido hidden markov en un sistema de reconocimiento de voz. - Google Patents

Procedimiento para la adaptacion de un modelo de sonido hidden markov en un sistema de reconocimiento de voz.

Info

Publication number
ES2169432T3
ES2169432T3 ES97944692T ES97944692T ES2169432T3 ES 2169432 T3 ES2169432 T3 ES 2169432T3 ES 97944692 T ES97944692 T ES 97944692T ES 97944692 T ES97944692 T ES 97944692T ES 2169432 T3 ES2169432 T3 ES 2169432T3
Authority
ES
Spain
Prior art keywords
adaptation
procedure
markov models
hidden markov
models
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES97944692T
Other languages
English (en)
Inventor
Udo Bub
Harald Hoge
Joachim Kohler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19636739A external-priority patent/DE19636739C1/de
Application filed by Siemens AG filed Critical Siemens AG
Application granted granted Critical
Publication of ES2169432T3 publication Critical patent/ES2169432T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/06—Creation of reference templates; Training of speech recognition systems, e.g. adaptation to the characteristics of the speaker's voice
    • G10L15/065—Adaptation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/005—Language recognition
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/08—Speech classification or search
    • G10L15/14—Speech classification or search using statistical models, e.g. Hidden Markov Models [HMMs]
    • G10L15/142—Hidden Markov Models [HMMs]
    • G10L15/144—Training of HMMs
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/06—Creation of reference templates; Training of speech recognition systems, e.g. adaptation to the characteristics of the speaker's voice
    • G10L15/063—Training
    • G10L2015/0631—Creating reference templates; Clustering
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/06—Creation of reference templates; Training of speech recognition systems, e.g. adaptation to the characteristics of the speaker's voice
    • G10L15/063—Training
    • G10L2015/0635—Training updating or merging of old and new templates; Mean values; Weighting

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Artificial Intelligence (AREA)
  • Probability & Statistics with Applications (AREA)
  • Machine Translation (AREA)
  • Character Discrimination (AREA)
  • Document Processing Apparatus (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Measuring Volume Flow (AREA)
  • Image Analysis (AREA)

Abstract

LA INVENCION SE REFIERE A UN PROCEDIMIENTO PARA ADAPTACION DE UN LIBRO (CB) DE CODIGO DISPONIBLE GENERALMENTE PARA APLICACIONES ESPECIALES CON UN SISTEMA DE RECONOCIMIENTO DE VOZ DEL MODELO SONORO MARKOV OCULTO. ESTAS APLICACIONES SE DEFINEN MEDIANTE UN DICCIONARIO (LEX) CAMBIADO POR EL UTILIZADOR. LA ADAPTACION (ADAP) SE REALIZA DURANTE LA OPERACION Y TIENE LUGAR POR MEDIO DE UN DESPLAZAMIENTO DEL VECTOR DEL PUNTO MEDIO ALMACENADO DE LAS DISTRIBUCIONES DE DENSIDAD DE PROBABILIDAD DE MODELOS MARKOV, EN LA DIRECCION DE UN VECTOR CARACTERISTICO CONOCIDO DE EXPRESIONES DE VOZ SONORAS Y CON RELACION A LOS MODELOS MARKOV OCULTOS ESPECIALMENTE UTILIZADOS. EN COMPARACION CON LAS TACTICAS HABITUALES, LA INVENCION TIENE LA VENTAJA DE QUE LO REALIZA ON-LINE Y QUE DISPONE DE UNA CUOTA DE RECONOCIMIENTO MUY ALTA CON UN COSTE REDUCIDO DE ORDENADOR. ADICIONALMENTE SE EVITAN LOS COSTES DE ADIESTRAMIENTO DE MODELOS SONOROS ESPECIALES PARA APLICACIONES CORRESPONDIENTES. MEDIANTE UTILIZACION DE MODELOS MARKOV OCULTOS A PARTIR DE FENOMENOS MULTILINGUALES, EN DONDE SE UTILIZAN SIMILARIDADES SONORAS A TRAVES DE VARIAS LENGUAS, PUEDE SEGUIR CON ELLO UNA ADAPTACION AUTOMATICA A LENGUAS EXTRAÑAS. SE TIENE EN CUENTA TANTO LAS CARACTERISTICAS ESPECIFICAS DEL LENGUAJE COMO LAS DEPENDIENTES DEL IDIOMA EN ESTE PROCEDIMIENTO PARA UNA MODERNIZACION FONETICA ACUSTICA, A FIN DE DETERMINAR LAS DENSIDADES DE PROBABILIDAD PARA DIFERENTES MODELOS SONOROS MARKOV OCULTOS EN IDIOMAS DIFERENTES.
ES97944692T 1996-09-10 1997-09-10 Procedimiento para la adaptacion de un modelo de sonido hidden markov en un sistema de reconocimiento de voz. Expired - Lifetime ES2169432T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19636739A DE19636739C1 (de) 1996-09-10 1996-09-10 Verfahren zur Mehrsprachenverwendung eines hidden Markov Lautmodelles in einem Spracherkennungssystem
DE19640586 1996-10-01

Publications (1)

Publication Number Publication Date
ES2169432T3 true ES2169432T3 (es) 2002-07-01

Family

ID=26029219

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97944692T Expired - Lifetime ES2169432T3 (es) 1996-09-10 1997-09-10 Procedimiento para la adaptacion de un modelo de sonido hidden markov en un sistema de reconocimiento de voz.

Country Status (9)

Country Link
US (1) US6460017B1 (es)
EP (1) EP0925579B1 (es)
JP (1) JP2001503154A (es)
CN (1) CN1237259A (es)
AT (1) ATE209814T1 (es)
BR (1) BR9712979A (es)
DE (1) DE59705581D1 (es)
ES (1) ES2169432T3 (es)
WO (1) WO1998011534A1 (es)

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US7725307B2 (en) 1999-11-12 2010-05-25 Phoenix Solutions, Inc. Query engine for processing voice based queries including semantic decoding
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EP1361740A1 (de) * 2002-05-08 2003-11-12 Sap Ag Verfahren und System zur Verarbeitung von Sprachinformationen eines Dialogs
DE10256935A1 (de) * 2002-12-05 2004-07-01 Siemens Ag Auswahl der Benutzersprache an einem rein akustisch gesteuerten Telefon
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Also Published As

Publication number Publication date
WO1998011534A1 (de) 1998-03-19
US6460017B1 (en) 2002-10-01
ATE209814T1 (de) 2001-12-15
EP0925579B1 (de) 2001-11-28
DE59705581D1 (de) 2002-01-10
JP2001503154A (ja) 2001-03-06
BR9712979A (pt) 2000-10-31
CN1237259A (zh) 1999-12-01
EP0925579A1 (de) 1999-06-30

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