WO2003001508A8 - Método para identificación de secuencias de audio - Google Patents

Método para identificación de secuencias de audio

Info

Publication number
WO2003001508A8
WO2003001508A8 PCT/ES2002/000312 ES0200312W WO03001508A8 WO 2003001508 A8 WO2003001508 A8 WO 2003001508A8 ES 0200312 W ES0200312 W ES 0200312W WO 03001508 A8 WO03001508 A8 WO 03001508A8
Authority
WO
WIPO (PCT)
Prior art keywords
abstract
phase
generated during
audio
representing
Prior art date
Application number
PCT/ES2002/000312
Other languages
English (en)
French (fr)
Other versions
WO2003001508B1 (es
WO2003001508A1 (es
Inventor
I Mont Eloi Batlle
Original Assignee
Uni Pompeu Fabra
I Mont Eloi Batlle
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
Application filed by Uni Pompeu Fabra, I Mont Eloi Batlle filed Critical Uni Pompeu Fabra
Priority to EP02743274A priority Critical patent/EP1439523A1/en
Publication of WO2003001508A1 publication Critical patent/WO2003001508A1/es
Publication of WO2003001508B1 publication Critical patent/WO2003001508B1/es
Publication of WO2003001508A8 publication Critical patent/WO2003001508A8/es

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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/26—Pre-filtering or post-filtering
    • G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • 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]
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
    • G10H2250/005—Algorithms for electrophonic musical instruments or musical processing, e.g. for automatic composition or resource allocation
    • G10H2250/015—Markov chains, e.g. hidden Markov models [HMM], for musical processing, e.g. musical analysis or musical composition
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
    • G10H2250/005—Algorithms for electrophonic musical instruments or musical processing, e.g. for automatic composition or resource allocation
    • G10H2250/015—Markov chains, e.g. hidden Markov models [HMM], for musical processing, e.g. musical analysis or musical composition
    • G10H2250/021—Dynamic programming, e.g. Viterbi, for finding the most likely or most desirable sequence in music analysis, processing or composition

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Probability & Statistics with Applications (AREA)
  • Signal Processing (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Telephonic Communication Services (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Comprende las siguientes etapas; 1. preprocesado (602) de la secuencia de audio, comprendiendo las eta pas de eliminaci6n de las frecuencias superiores a un valor predeterminado con un filtro pasa-bajos , y de digitalizaci6n de la serial en un convertidor anal6gico/digital , 2. extracci6n de parametros (301 ), representativos de la secuencia de audio, para obtener un vector de parametros Ot especialmente adaptado al enfoque de identificacion propuesto, 3. calculo de descriptores abstractos (302), representativos del vector de parametros Ot, implementados como Modelos Ocultos de Markov, optimizados mediante el uso de una base de datos de definicion de descriptores abstractos (303) generada durante la ejecucion previa de una primera fase en modo de aprendizaje del metodo, 4. identificaci6n (605) de las secuencias de audio asf tratadas en una base de datos de secuencias de descriptores abstractos (505) generada durante la ejecucion previa de una segunda fase en modo de aprendizaje del metodo, 5. grabaci6n de los resultados (607) obtenidos en la etapa de identificaci6n (605).
PCT/ES2002/000312 2001-06-25 2002-06-25 Método para identificación de secuencias de audio WO2003001508A1 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02743274A EP1439523A1 (en) 2001-06-25 2002-06-25 Method for multiple access and transmission in a point-to-multipoint system on an electric network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200101468A ES2190342B1 (es) 2001-06-25 2001-06-25 Metodo para identificacion de secuencias de audio.
ESP0101468 2001-06-25

Publications (3)

Publication Number Publication Date
WO2003001508A1 WO2003001508A1 (es) 2003-01-03
WO2003001508B1 WO2003001508B1 (es) 2004-07-08
WO2003001508A8 true WO2003001508A8 (es) 2004-08-12

Family

ID=8498172

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2002/000312 WO2003001508A1 (es) 2001-06-25 2002-06-25 Método para identificación de secuencias de audio

Country Status (3)

Country Link
EP (1) EP1439523A1 (es)
ES (1) ES2190342B1 (es)
WO (1) WO2003001508A1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112863541B (zh) * 2020-12-31 2024-02-09 福州数据技术研究院有限公司 一种基于聚类和中值收敛的音频切割方法和系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5937384A (en) * 1996-05-01 1999-08-10 Microsoft Corporation Method and system for speech recognition using continuous density hidden Markov models
US5890111A (en) * 1996-12-24 1999-03-30 Technology Research Association Of Medical Welfare Apparatus Enhancement of esophageal speech by injection noise rejection
CA2216224A1 (en) * 1997-09-19 1999-03-19 Peter R. Stubley Block algorithm for pattern recognition
US6182036B1 (en) * 1999-02-23 2001-01-30 Motorola, Inc. Method of extracting features in a voice recognition system

Also Published As

Publication number Publication date
EP1439523A1 (en) 2004-07-21
WO2003001508B1 (es) 2004-07-08
ES2190342A1 (es) 2003-07-16
ES2190342B1 (es) 2004-11-16
WO2003001508A1 (es) 2003-01-03

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