ES2110595T3 - Prevision a largo plazo de doble modalidad en el codificado de la palabra. - Google Patents
Prevision a largo plazo de doble modalidad en el codificado de la palabra.Info
- Publication number
- ES2110595T3 ES2110595T3 ES93903357T ES93903357T ES2110595T3 ES 2110595 T3 ES2110595 T3 ES 2110595T3 ES 93903357 T ES93903357 T ES 93903357T ES 93903357 T ES93903357 T ES 93903357T ES 2110595 T3 ES2110595 T3 ES 2110595T3
- Authority
- ES
- Spain
- Prior art keywords
- vector
- long
- code
- word
- term forecast
- 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
- 230000007774 longterm Effects 0.000 abstract 3
- 230000005284 excitation Effects 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 230000015572 biosynthetic process Effects 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
- G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
-
- 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
- G10L2019/0001—Codebooks
- G10L2019/0004—Design or structure of the codebook
- G10L2019/0005—Multi-stage vector quantisation
-
- 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
- G10L2019/0001—Codebooks
- G10L2019/0011—Long term prediction filters, i.e. pitch estimation
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
LA INVENCION SE REFIERE A UN METODO PARA CODIFICAR UN VECTOR DE SEÑAL DE DISCURSO MUESTREADO (S(N)) EN UN METODO DE CODIFICACION DE ANALISIS POR SINTESIS FORMANDO UN VECTOR DE EXCITACION OPTIMO QUE COMPRENDE UNA COMBINACION LINEAL DE UN VECTOR DE CODIGO A PARTIR DE UN CATALOGO DE CODIGO FIJO (12) Y UN VECTOR DE PREDICCION A LARGO PLAZO. UNA PRIMERA ESTIMACION DEL VECTOR DE PREDICCION A LARGO PLAZO SE FORMA EN UN ANALISIS DE BUCLE ABIERTO (22,24,30,32,34,36). UNA SEGUNDA ESTIMACION DEL VECTOR DE PREDICCION A LARGO PLAZO SE FORMA EN UN ANALISIS DE BUCLE CERRADO (GL, 14, 16, 20, 24, 28, 34, 36,). FINALMENTE, CADA UNA DE LA PRIMERA Y SEGUNDA ESTIMACION SE COMBINAN EN UNA BUSQUEDA EXHAUSTIVA (GJ, GL, 14, 16, 20, 22, 24, 28, 36) CON CADA VECTOR DE CODIGO DEL CATALOGO DE CODIGO FIJO (12) PARA FORMAR ESE VECTOR DE EXCITACION QUE OFRECE LA MEJOR CODIFICACION DEL VECTOR DE SEÑAL DE DISCURSO (S(N)).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9200217A SE469764B (sv) | 1992-01-27 | 1992-01-27 | Saett att koda en samplad talsignalvektor |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2110595T3 true ES2110595T3 (es) | 1998-02-16 |
Family
ID=20385120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES93903357T Expired - Lifetime ES2110595T3 (es) | 1992-01-27 | 1993-01-19 | Prevision a largo plazo de doble modalidad en el codificado de la palabra. |
Country Status (15)
Country | Link |
---|---|
US (1) | US5553191A (es) |
EP (1) | EP0577809B1 (es) |
JP (1) | JP3073017B2 (es) |
AU (1) | AU658053B2 (es) |
BR (1) | BR9303964A (es) |
CA (1) | CA2106390A1 (es) |
DE (1) | DE69314389T2 (es) |
DK (1) | DK0577809T3 (es) |
ES (1) | ES2110595T3 (es) |
FI (1) | FI934063A (es) |
HK (1) | HK1003346A1 (es) |
MX (1) | MX9300401A (es) |
SE (1) | SE469764B (es) |
TW (1) | TW227609B (es) |
WO (1) | WO1993015503A1 (es) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI95086C (fi) * | 1992-11-26 | 1995-12-11 | Nokia Mobile Phones Ltd | Menetelmä puhesignaalin tehokkaaksi koodaamiseksi |
PT744069E (pt) * | 1994-02-01 | 2002-10-31 | Qualcomm Inc | Predicao linear de excitacao por rajadas |
GB9408037D0 (en) * | 1994-04-22 | 1994-06-15 | Philips Electronics Uk Ltd | Analogue signal coder |
US7133835B1 (en) * | 1995-08-08 | 2006-11-07 | Cxn, Inc. | Online exchange market system with a buyer auction and a seller auction |
US6765904B1 (en) | 1999-08-10 | 2004-07-20 | Texas Instruments Incorporated | Packet networks |
US5799272A (en) * | 1996-07-01 | 1998-08-25 | Ess Technology, Inc. | Switched multiple sequence excitation model for low bit rate speech compression |
JP3357795B2 (ja) * | 1996-08-16 | 2002-12-16 | 株式会社東芝 | 音声符号化方法および装置 |
FI964975A (fi) * | 1996-12-12 | 1998-06-13 | Nokia Mobile Phones Ltd | Menetelmä ja laite puheen koodaamiseksi |
US6068630A (en) * | 1997-01-02 | 2000-05-30 | St. Francis Medical Technologies, Inc. | Spine distraction implant |
US7072832B1 (en) * | 1998-08-24 | 2006-07-04 | Mindspeed Technologies, Inc. | System for speech encoding having an adaptive encoding arrangement |
SE519563C2 (sv) * | 1998-09-16 | 2003-03-11 | Ericsson Telefon Ab L M | Förfarande och kodare för linjär prediktiv analys-genom- synteskodning |
US6801532B1 (en) * | 1999-08-10 | 2004-10-05 | Texas Instruments Incorporated | Packet reconstruction processes for packet communications |
US6678267B1 (en) | 1999-08-10 | 2004-01-13 | Texas Instruments Incorporated | Wireless telephone with excitation reconstruction of lost packet |
US6757256B1 (en) | 1999-08-10 | 2004-06-29 | Texas Instruments Incorporated | Process of sending packets of real-time information |
US6801499B1 (en) * | 1999-08-10 | 2004-10-05 | Texas Instruments Incorporated | Diversity schemes for packet communications |
US6744757B1 (en) | 1999-08-10 | 2004-06-01 | Texas Instruments Incorporated | Private branch exchange systems for packet communications |
US6804244B1 (en) | 1999-08-10 | 2004-10-12 | Texas Instruments Incorporated | Integrated circuits for packet communications |
US7574351B2 (en) * | 1999-12-14 | 2009-08-11 | Texas Instruments Incorporated | Arranging CELP information of one frame in a second packet |
US7103538B1 (en) * | 2002-06-10 | 2006-09-05 | Mindspeed Technologies, Inc. | Fixed code book with embedded adaptive code book |
FI118835B (fi) * | 2004-02-23 | 2008-03-31 | Nokia Corp | Koodausmallin valinta |
US9058812B2 (en) * | 2005-07-27 | 2015-06-16 | Google Technology Holdings LLC | Method and system for coding an information signal using pitch delay contour adjustment |
EP2077551B1 (en) | 2008-01-04 | 2011-03-02 | Dolby Sweden AB | Audio encoder and decoder |
US8977542B2 (en) | 2010-07-16 | 2015-03-10 | Telefonaktiebolaget L M Ericsson (Publ) | Audio encoder and decoder and methods for encoding and decoding an audio signal |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8500843A (nl) * | 1985-03-22 | 1986-10-16 | Koninkl Philips Electronics Nv | Multipuls-excitatie lineair-predictieve spraakcoder. |
US4868867A (en) * | 1987-04-06 | 1989-09-19 | Voicecraft Inc. | Vector excitation speech or audio coder for transmission or storage |
US5359696A (en) * | 1988-06-28 | 1994-10-25 | Motorola Inc. | Digital speech coder having improved sub-sample resolution long-term predictor |
US5097508A (en) * | 1989-08-31 | 1992-03-17 | Codex Corporation | Digital speech coder having improved long term lag parameter determination |
CA2051304C (en) * | 1990-09-18 | 1996-03-05 | Tomohiko Taniguchi | Speech coding and decoding system |
US5271089A (en) * | 1990-11-02 | 1993-12-14 | Nec Corporation | Speech parameter encoding method capable of transmitting a spectrum parameter at a reduced number of bits |
CA2483296C (en) * | 1991-06-11 | 2008-01-22 | Qualcomm Incorporated | Variable rate vocoder |
US5233660A (en) * | 1991-09-10 | 1993-08-03 | At&T Bell Laboratories | Method and apparatus for low-delay celp speech coding and decoding |
-
1992
- 1992-01-27 SE SE9200217A patent/SE469764B/sv not_active IP Right Cessation
-
1993
- 1993-01-13 TW TW082100183A patent/TW227609B/zh active
- 1993-01-19 BR BR9303964A patent/BR9303964A/pt not_active IP Right Cessation
- 1993-01-19 CA CA002106390A patent/CA2106390A1/en not_active Abandoned
- 1993-01-19 DE DE69314389T patent/DE69314389T2/de not_active Expired - Lifetime
- 1993-01-19 JP JP05513132A patent/JP3073017B2/ja not_active Expired - Lifetime
- 1993-01-19 DK DK93903357.7T patent/DK0577809T3/da active
- 1993-01-19 EP EP93903357A patent/EP0577809B1/en not_active Expired - Lifetime
- 1993-01-19 ES ES93903357T patent/ES2110595T3/es not_active Expired - Lifetime
- 1993-01-19 WO PCT/SE1993/000024 patent/WO1993015503A1/en active IP Right Grant
- 1993-01-19 AU AU34651/93A patent/AU658053B2/en not_active Ceased
- 1993-01-26 US US08/009,245 patent/US5553191A/en not_active Expired - Lifetime
- 1993-01-26 MX MX9300401A patent/MX9300401A/es not_active IP Right Cessation
- 1993-09-16 FI FI934063A patent/FI934063A/fi unknown
-
1998
- 1998-03-20 HK HK98102397A patent/HK1003346A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
WO1993015503A1 (en) | 1993-08-05 |
MX9300401A (es) | 1993-07-01 |
SE469764B (sv) | 1993-09-06 |
US5553191A (en) | 1996-09-03 |
JP3073017B2 (ja) | 2000-08-07 |
BR9303964A (pt) | 1994-08-02 |
SE9200217L (sv) | 1993-07-28 |
JPH06506544A (ja) | 1994-07-21 |
DE69314389T2 (de) | 1998-02-05 |
TW227609B (es) | 1994-08-01 |
FI934063A0 (fi) | 1993-09-16 |
EP0577809B1 (en) | 1997-10-08 |
CA2106390A1 (en) | 1993-07-28 |
SE9200217D0 (sv) | 1992-01-27 |
AU3465193A (en) | 1993-09-01 |
DE69314389D1 (de) | 1997-11-13 |
DK0577809T3 (da) | 1998-05-25 |
EP0577809A1 (en) | 1994-01-12 |
AU658053B2 (en) | 1995-03-30 |
FI934063A (fi) | 1993-09-16 |
HK1003346A1 (en) | 1998-10-23 |
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Legal Events
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---|---|---|---|
FG2A | Definitive protection |
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