ES2104842T3 - Metodo y aparato para aplanar formas de ondas de ciclos de frecuencia. - Google Patents
Metodo y aparato para aplanar formas de ondas de ciclos de frecuencia.Info
- Publication number
- ES2104842T3 ES2104842T3 ES92309167T ES92309167T ES2104842T3 ES 2104842 T3 ES2104842 T3 ES 2104842T3 ES 92309167 T ES92309167 T ES 92309167T ES 92309167 T ES92309167 T ES 92309167T ES 2104842 T3 ES2104842 T3 ES 2104842T3
- Authority
- ES
- Spain
- Prior art keywords
- voice signal
- reconstructed
- traces
- identified
- softened
- 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
- 238000000034 method Methods 0.000 title abstract 3
- 230000007774 longterm Effects 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000009499 grossing Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 238000003786 synthesis reaction Methods 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
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
Landscapes
- Engineering & Computer Science (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
SE PRESENTA UN METODO Y UN APARATO PARA PROCESAR UNA SEÑAL DE VOZ RECONSTRUIDA A PARTIR DE UN DECODIFICADOR DE ANALISIS MEDIANTE SINTESIS PARA MEJORAR LA CALIDAD DE LA VOZ RECONSTRUIDA. MEDIANTE EL FUNCIONAMIENTO DE LA INVENCION SE IDENTIFICAN UNA O MAS TRAZAS EN UNA SEÑAL DE VOZ RECONSTRUIDA. LAS TRAZAS SON SECUENCIAS DE CARACTERISTICAS EN LA SEÑAL DE VOZ RECONSTRUIDA. LAS CARACTERISTICAS SE IDENTIFICAN POR LOS DATOS DE TIEMPODISTANCIA RECIBIDOS DEL EXTRAPOLADOR DE TERMINO LARGO DEL DECODIFICADOR. LAS TRAZAS IDENTIFICADAS SE SUAVIZAN MEDIANTE UNA DE LAS TECNICAS DE SUAVIZACION CONOCIDAS. SE FORMA UNA VERSION SUAVIZADA DE LA SEÑAL DE VOZ RECONSTRUIDA COMBINANDO UNA O MAS TRAZAS SUAVIZADAS. LA SEÑAL DE VOZ ORIGINAL RECONSTRUIDA PUEDE SER LA SUMINISTRADA POR EL EXTRAPOLADOR DE TERMINO LARGO DEL DECODIFICADOR. LOS VALORES DE LA SEÑAL DE VOZ RECONSTRUIDA Y DE LA SEÑAL DE VOZ SUAVIZADA PUEDEN COMBINARSE EN BASE A UNA MEDIDA DE LA PERIODICIDAD EN LA VOZ.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US77856091A | 1991-10-18 | 1991-10-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2104842T3 true ES2104842T3 (es) | 1997-10-16 |
Family
ID=25113764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES92309167T Expired - Lifetime ES2104842T3 (es) | 1991-10-18 | 1992-10-08 | Metodo y aparato para aplanar formas de ondas de ciclos de frecuencia. |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0537948B1 (es) |
| JP (1) | JP3798433B2 (es) |
| DE (1) | DE69221985T2 (es) |
| ES (1) | ES2104842T3 (es) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL135630A0 (en) * | 1997-12-08 | 2001-05-20 | Mitsubishi Electric Corp | Method and apparatus for processing sound signal |
| EP1208561B1 (en) * | 1999-05-19 | 2005-01-26 | Noisecom APS | A method and apparatus for noise reduction in speech signals |
| JP4968421B2 (ja) * | 2001-09-28 | 2012-07-04 | 大日本印刷株式会社 | 時系列信号解析装置 |
-
1992
- 1992-10-08 DE DE1992621985 patent/DE69221985T2/de not_active Expired - Fee Related
- 1992-10-08 ES ES92309167T patent/ES2104842T3/es not_active Expired - Lifetime
- 1992-10-08 EP EP19920309167 patent/EP0537948B1/en not_active Expired - Lifetime
- 1992-10-16 JP JP27759292A patent/JP3798433B2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE69221985T2 (de) | 1998-01-08 |
| JP3798433B2 (ja) | 2006-07-19 |
| EP0537948A3 (en) | 1993-06-23 |
| DE69221985D1 (de) | 1997-10-09 |
| EP0537948B1 (en) | 1997-09-03 |
| JPH05224698A (ja) | 1993-09-03 |
| EP0537948A2 (en) | 1993-04-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG2A | Definitive protection |
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