ES2165933T3 - Procedimiento y dispositivo de clasificacion de las señales del habla. - Google Patents
Procedimiento y dispositivo de clasificacion de las señales del habla.Info
- Publication number
- ES2165933T3 ES2165933T3 ES96104213T ES96104213T ES2165933T3 ES 2165933 T3 ES2165933 T3 ES 2165933T3 ES 96104213 T ES96104213 T ES 96104213T ES 96104213 T ES96104213 T ES 96104213T ES 2165933 T3 ES2165933 T3 ES 2165933T3
- Authority
- ES
- Spain
- Prior art keywords
- speech
- frames
- divided
- segments
- wavelet transformation
- 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
Links
- 230000009466 transformation Effects 0.000 abstract 3
- 230000003044 adaptive effect Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 abstract 1
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
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
-
- 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/78—Detection of presence or absence of voice signals
- G10L2025/783—Detection of presence or absence of voice signals based on threshold decision
- G10L2025/786—Adaptive threshold
-
- 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/27—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the analysis technique
-
- 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/93—Discriminating between voiced and unvoiced parts of speech signals
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Computational Linguistics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Time-Division Multiplex Systems (AREA)
- Machine Translation (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Abstract
SE DESCRIBE UN PROCEDIMIENTO Y UNA DISPOSICION PARA CLASIFICACION DE LENGUAJE SOBRE LA BASE DE TRANSFORMACION WAVELET PARA PROCEDIMIENTO DE CODIFICACION DE LENGUAJE DE CUOTA BAJA. EL PROCEDIMIENTO O LA DISPOSICION SE CARACTERIZAN COMO CLASIFICADORES ROBUSTOS DE SEÑALES DE LENGUAJE PARA EL CONTROL ADAPTADO DE SEÑAL DE PROCEDIMIENTO DE CODIFICACION DE LENGUAJE EN EL DESCENSO DE LA CUOTA DE BIT CON CALIDAD DE LENGUAJE PERMANENTE O PARA LA ELEVACION DE LA CALIDAD EN LA MISMA CUOTA DE BIT, CARACTERIZANDOSE DE TAL MODO, QUE DESPUES DE LA SEGMENTACION DE LA SEÑAL DE LENGUAJE PARA CADA ESTRUCTURA SE CALCULA UNA TRANSFORMACION WAVELET, A PARTIR DE LA CUAL SE DETERMINA UN JUEGO DE PARAMETROS CON LA AYUDA DE UMBRAL ADAPTIVO, QUE CONTROLA UN MODELO DE SITUACION, QUE DISTRIBUYE LA ESTRUCTURA EN SUBESTRUCTURAS EVENTUALMENTE MAS CORTAS Y CADA UNA DE ESTAS SUBESTRUCTURAS SE APLICAN EN UNA O MULTIPLES CLASES TIPICAS PARA CODIFICACION DE LENGUAJE. LA SEÑAL DE LENGUAJE SE CLASIFICA SOBRE LA BASE DE TRANSFORMACION WAVELET PARA CADA ESTRUCTURA DE TIEMPO. CON ELLO PUEDE CONSEGUIRSE TANTO UNA ALTA RESOLUCION EN ZONA DE TIEMPO (LOCALIZACION DE IMPULSOS) COMO TAMBIEN EN LA ZONA DE FRECUENCIA (BUEN VALOR MEDIO). ESTE PROCEDIMIENTO Y EL CLASIFICADOR SON APROPIADOS POR ELLO ESPECIALMENTE PARA CONTROL O PARA ELECCION DE DICCIONARIOS DE CODIFICACION EN UN CODIFICADOR DE LENGUAJE DE BAJA CUOTA. MUESTRAN ADEMAS UNA ALTA INSENSIBILIDAD CONTRA RUIDOS BASICOS ASI COMO UNA COMPLEJIDAD REDUCIDA.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19523598 | 1995-06-30 | ||
| DE19538852A DE19538852A1 (de) | 1995-06-30 | 1995-10-19 | Verfahren und Anordnung zur Klassifizierung von Sprachsignalen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2165933T3 true ES2165933T3 (es) | 2002-04-01 |
Family
ID=26016384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES96104213T Expired - Lifetime ES2165933T3 (es) | 1995-06-30 | 1996-03-16 | Procedimiento y dispositivo de clasificacion de las señales del habla. |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0751495B1 (es) |
| AT (1) | ATE206841T1 (es) |
| ES (1) | ES2165933T3 (es) |
| NO (1) | NO309831B1 (es) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19716862A1 (de) * | 1997-04-22 | 1998-10-29 | Deutsche Telekom Ag | Sprachaktivitätserkennung |
-
1996
- 1996-03-16 ES ES96104213T patent/ES2165933T3/es not_active Expired - Lifetime
- 1996-03-16 EP EP96104213A patent/EP0751495B1/de not_active Expired - Lifetime
- 1996-03-16 AT AT96104213T patent/ATE206841T1/de not_active IP Right Cessation
- 1996-04-24 NO NO961636A patent/NO309831B1/no not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NO961636D0 (no) | 1996-04-24 |
| NO309831B1 (no) | 2001-04-02 |
| NO961636L (no) | 1997-01-02 |
| EP0751495A3 (de) | 1998-04-15 |
| EP0751495B1 (de) | 2001-10-10 |
| ATE206841T1 (de) | 2001-10-15 |
| EP0751495A2 (de) | 1997-01-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG2A | Definitive protection |
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