ES2116270T3 - Libro de codigos dinamicos para la codificacion eficiente de voz basado en codigos algebraicos. - Google Patents
Libro de codigos dinamicos para la codificacion eficiente de voz basado en codigos algebraicos.Info
- Publication number
- ES2116270T3 ES2116270T3 ES90915956T ES90915956T ES2116270T3 ES 2116270 T3 ES2116270 T3 ES 2116270T3 ES 90915956 T ES90915956 T ES 90915956T ES 90915956 T ES90915956 T ES 90915956T ES 2116270 T3 ES2116270 T3 ES 2116270T3
- Authority
- ES
- Spain
- Prior art keywords
- code
- algebraic
- code book
- dynamic code
- voice coding
- 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
- 230000005284 excitation 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
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
- G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
-
- 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
-
- 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
-
- 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
- G10L2019/0007—Codebook element generation
- G10L2019/0008—Algebraic codebooks
-
- 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
-
- 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
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/06—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being correlation coefficients
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 DESCRIBE UN METODO DE CODIFICAR UNA SEÑAL DE VOZ. ESTE METODO MEJORA EL PROCEDIMIENTO DE CODIGO DE EXCITACIONES Y BUSQUEDA DE LOS CODIFICADORES DE VOZ CONVENCIONALES DE PREDICCION LINEAL POR EXCITACION POR CODIGO (CELP). SE UTILIZA UN LIBRO DE CODIGOS DINAMICO (201, 202) BASADO EN UNA COMBINACION DE DOS MODULOS, UN GENERADOR DE CODIGO ALGEBRAICO DISPERSO (201) ASOCIADO A UN FILTRO (202) CON UNA FUNCION DE TRANSFERENCIA VARIANTE CON EL TIEMPO. EL GENERADOR (201) ES UN LIBRO DE CODIGOS ESTRUCTURADO CON PALABRAS CLAVE CON MUY POCO COMPONENTES NO NULOS. EL FILTRO (202) CONFORMA LAS CARACTERISTICAS ESPECTRALES, POR LO QUE EL LIBRO DE CODIGOS DE EXCITACION RESULTANTE (201, 202) MUESTRA PROPIEDADES PERCEPTUALES FAVORABLES. LA COMPLEJIDAD DE LA BUSQUEDA DE LA MEJOR PALABRA CLAVE SE REDUCE GRANDEMENTE HACIENDO REGRESAR LA BUSQUEDA AL DOMINIO DEL CODIGO ALGEBRAICO, PERMITIENDO ASI QUE LA DISPERSION DEL CODIGO ALGEBRAICO ACELERE LOS CALCULOS NECESARIOS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002010830A CA2010830C (en) | 1990-02-23 | 1990-02-23 | Dynamic codebook for efficient speech coding based on algebraic codes |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2116270T3 true ES2116270T3 (es) | 1998-07-16 |
Family
ID=4144369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES90915956T Expired - Lifetime ES2116270T3 (es) | 1990-02-23 | 1990-11-06 | Libro de codigos dinamicos para la codificacion eficiente de voz basado en codigos algebraicos. |
Country Status (9)
Country | Link |
---|---|
US (2) | US5444816A (es) |
EP (1) | EP0516621B1 (es) |
AT (1) | ATE164252T1 (es) |
AU (1) | AU6632890A (es) |
CA (1) | CA2010830C (es) |
DE (1) | DE69032168T2 (es) |
DK (1) | DK0516621T3 (es) |
ES (1) | ES2116270T3 (es) |
WO (1) | WO1991013432A1 (es) |
Families Citing this family (72)
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CA2010830C (en) * | 1990-02-23 | 1996-06-25 | Jean-Pierre Adoul | Dynamic codebook for efficient speech coding based on algebraic codes |
US5701392A (en) * | 1990-02-23 | 1997-12-23 | Universite De Sherbrooke | Depth-first algebraic-codebook search for fast coding of speech |
US5754976A (en) * | 1990-02-23 | 1998-05-19 | Universite De Sherbrooke | Algebraic codebook with signal-selected pulse amplitude/position combinations for fast coding of speech |
FR2668288B1 (fr) * | 1990-10-19 | 1993-01-15 | Di Francesco Renaud | Procede de transmission, a bas debit, par codage celp d'un signal de parole et systeme correspondant. |
US5233660A (en) * | 1991-09-10 | 1993-08-03 | At&T Bell Laboratories | Method and apparatus for low-delay celp speech coding and decoding |
US5621852A (en) * | 1993-12-14 | 1997-04-15 | Interdigital Technology Corporation | Efficient codebook structure for code excited linear prediction coding |
US5699477A (en) * | 1994-11-09 | 1997-12-16 | Texas Instruments Incorporated | Mixed excitation linear prediction with fractional pitch |
FR2729245B1 (fr) * | 1995-01-06 | 1997-04-11 | Lamblin Claude | Procede de codage de parole a prediction lineaire et excitation par codes algebriques |
US5664053A (en) * | 1995-04-03 | 1997-09-02 | Universite De Sherbrooke | Predictive split-matrix quantization of spectral parameters for efficient coding of speech |
US5822724A (en) * | 1995-06-14 | 1998-10-13 | Nahumi; Dror | Optimized pulse location in codebook searching techniques for speech processing |
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DE69516522T2 (de) * | 1995-11-09 | 2001-03-08 | Nokia Mobile Phones Ltd., Salo | Verfahren zur Synthetisierung eines Sprachsignalblocks in einem CELP-Kodierer |
JP3137176B2 (ja) * | 1995-12-06 | 2001-02-19 | 日本電気株式会社 | 音声符号化装置 |
US5751901A (en) * | 1996-07-31 | 1998-05-12 | Qualcomm Incorporated | Method for searching an excitation codebook in a code excited linear prediction (CELP) coder |
DE19641619C1 (de) * | 1996-10-09 | 1997-06-26 | Nokia Mobile Phones Ltd | Verfahren zur Synthese eines Rahmens eines Sprachsignals |
KR100339168B1 (ko) * | 1996-11-07 | 2002-06-03 | 모리시타 요이찌 | 음원 벡터 생성 장치, 음성 부호화 장치 및 음성 복호화장치 |
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FI964975A (fi) * | 1996-12-12 | 1998-06-13 | Nokia Mobile Phones Ltd | Menetelmä ja laite puheen koodaamiseksi |
FI114248B (fi) * | 1997-03-14 | 2004-09-15 | Nokia Corp | Menetelmä ja laite audiokoodaukseen ja audiodekoodaukseen |
JP3064947B2 (ja) * | 1997-03-26 | 2000-07-12 | 日本電気株式会社 | 音声・楽音符号化及び復号化装置 |
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EP1267330B1 (en) * | 1997-09-02 | 2005-01-19 | Telefonaktiebolaget LM Ericsson (publ) | Reducing sparseness in coded speech signals |
US6029125A (en) * | 1997-09-02 | 2000-02-22 | Telefonaktiebolaget L M Ericsson, (Publ) | Reducing sparseness in coded speech signals |
US6170033B1 (en) * | 1997-09-30 | 2001-01-02 | Intel Corporation | Forwarding causes of non-maskable interrupts to the interrupt handler |
FI973873A (fi) | 1997-10-02 | 1999-04-03 | Nokia Mobile Phones Ltd | Puhekoodaus |
KR100872246B1 (ko) | 1997-10-22 | 2008-12-05 | 파나소닉 주식회사 | 직교화 탐색 방법 및 음성 부호화기 |
US6385576B2 (en) * | 1997-12-24 | 2002-05-07 | Kabushiki Kaisha Toshiba | Speech encoding/decoding method using reduced subframe pulse positions having density related to pitch |
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US5963897A (en) * | 1998-02-27 | 1999-10-05 | Lernout & Hauspie Speech Products N.V. | Apparatus and method for hybrid excited linear prediction speech encoding |
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JP3180762B2 (ja) * | 1998-05-11 | 2001-06-25 | 日本電気株式会社 | 音声符号化装置及び音声復号化装置 |
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US6311154B1 (en) | 1998-12-30 | 2001-10-30 | Nokia Mobile Phones Limited | Adaptive windows for analysis-by-synthesis CELP-type speech coding |
JP4173940B2 (ja) * | 1999-03-05 | 2008-10-29 | 松下電器産業株式会社 | 音声符号化装置及び音声符号化方法 |
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JP5264913B2 (ja) * | 2007-09-11 | 2013-08-14 | ヴォイスエイジ・コーポレーション | 話声およびオーディオの符号化における、代数符号帳の高速検索のための方法および装置 |
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-
1990
- 1990-02-23 CA CA002010830A patent/CA2010830C/en not_active Expired - Lifetime
- 1990-11-06 DE DE69032168T patent/DE69032168T2/de not_active Expired - Lifetime
- 1990-11-06 WO PCT/CA1990/000381 patent/WO1991013432A1/en active IP Right Grant
- 1990-11-06 EP EP90915956A patent/EP0516621B1/en not_active Expired - Lifetime
- 1990-11-06 US US07/927,528 patent/US5444816A/en not_active Expired - Lifetime
- 1990-11-06 DK DK90915956T patent/DK0516621T3/da active
- 1990-11-06 AU AU66328/90A patent/AU6632890A/en not_active Abandoned
- 1990-11-06 AT AT90915956T patent/ATE164252T1/de not_active IP Right Cessation
- 1990-11-06 ES ES90915956T patent/ES2116270T3/es not_active Expired - Lifetime
-
1995
- 1995-05-11 US US08/438,703 patent/US5699482A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69032168D1 (de) | 1998-04-23 |
CA2010830C (en) | 1996-06-25 |
DK0516621T3 (da) | 1999-01-11 |
AU6632890A (en) | 1991-09-18 |
ATE164252T1 (de) | 1998-04-15 |
WO1991013432A1 (en) | 1991-09-05 |
DE69032168T2 (de) | 1998-10-08 |
EP0516621B1 (en) | 1998-03-18 |
CA2010830A1 (en) | 1991-08-23 |
US5699482A (en) | 1997-12-16 |
US5444816A (en) | 1995-08-22 |
EP0516621A1 (en) | 1992-12-09 |
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