ES2164414T3 - Metodo y aparato para codificacion de audio. - Google Patents

Metodo y aparato para codificacion de audio.

Info

Publication number
ES2164414T3
ES2164414T3 ES98904191T ES98904191T ES2164414T3 ES 2164414 T3 ES2164414 T3 ES 2164414T3 ES 98904191 T ES98904191 T ES 98904191T ES 98904191 T ES98904191 T ES 98904191T ES 2164414 T3 ES2164414 T3 ES 2164414T3
Authority
ES
Spain
Prior art keywords
audio signal
signal
quantized
generate
frequency
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
Application number
ES98904191T
Other languages
English (en)
Inventor
Lin Yin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Oyj
Original Assignee
Nokia Mobile Phones Ltd
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 Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Application granted granted Critical
Publication of ES2164414T3 publication Critical patent/ES2164414T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • 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
    • 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
    • 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—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 spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Telephone Function (AREA)

Abstract

UN PROCEDIMIENTO DE CODIFICACION DE UNA SEÑAL DE AUDIO QUE CONSISTE EN RECIBIR UNA SEÑAL DE AUDIO X A CODIFICAR Y TRANSFORMAR LA SEÑAL RECIBIDA DEL DOMINIO DE TIEMPO AL DE FRECUENCIA. SE GENERA UNA SEÑAL DE AUDIO CUANTIZADA A PARTIR DE LA SEÑAL DE AUDIO TRANSFORMADA X JUNTO CON UNA SERIE DE COEFICIENTES DE PREDICCION A LARGO PLAZO A QUE SE PUEDEN UTILIZAR PARA PREDECIR UN CUADRO TEMPORAL ACTUAL DE LA SEÑAL DE AUDIO RECIBIDA DIRECTAMENTE A PARTIR DE UNO O MAS CUADROS TEMPORALES ANTERIORES DE LA SEÑAL DE AUDIO CUANTIZADA X. SE GENERA UNA SEÑAL DE AUDIO PRONOSTICADA X UTILIZANDO LOS COEFICIENTES DE PREDICCION A. A CONTINUACION SE TRANSFORMA LA SEÑAL DE AUDIO PRONOSTICADA DEL DOMINIO DE TIEMPO AL DE FRECUENCIA Y LA SEÑAL DE DOMINIO DE FRECUENCIA RESULTANTE SE COMPARA CON LA DE LA SEÑAL DE AUDIO RECIBIDA X PARA GENERAR UNA SEÑAL DE ERROR E(K) PARA CADA UNA DE UNA PLURALIDAD DE SUBBANDAS DE FRECUENCIA. A CONTINUACION SE CUANTIZAN LAS SEÑALES DE ERROR E(K) PARA GENERAR UNA SERIE DE SEÑALES DE ERROR CUANTIZADAS E(K) QUE SE COMBINAN CON LOS COEFICIENTES DE PREDICCION A PARA GENERAR UNA SEÑAL DE AUDIO CODIFICADA.
ES98904191T 1997-03-14 1998-02-18 Metodo y aparato para codificacion de audio. Expired - Lifetime ES2164414T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI971108A FI114248B (fi) 1997-03-14 1997-03-14 Menetelmä ja laite audiokoodaukseen ja audiodekoodaukseen

Publications (1)

Publication Number Publication Date
ES2164414T3 true ES2164414T3 (es) 2002-02-16

Family

ID=8548401

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98904191T Expired - Lifetime ES2164414T3 (es) 1997-03-14 1998-02-18 Metodo y aparato para codificacion de audio.

Country Status (13)

Country Link
US (2) US6721700B1 (es)
EP (1) EP0966793B1 (es)
JP (2) JP3391686B2 (es)
KR (1) KR100469002B1 (es)
CN (1) CN1135721C (es)
AU (1) AU733156B2 (es)
DE (1) DE19811039B4 (es)
ES (1) ES2164414T3 (es)
FI (1) FI114248B (es)
FR (1) FR2761801B1 (es)
GB (1) GB2323759B (es)
SE (1) SE521129C2 (es)
WO (1) WO1998042083A1 (es)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2380640A (en) * 2001-08-21 2003-04-09 Micron Technology Inc Data compression method
US7240001B2 (en) * 2001-12-14 2007-07-03 Microsoft Corporation Quality improvement techniques in an audio encoder
US6934677B2 (en) 2001-12-14 2005-08-23 Microsoft Corporation Quantization matrices based on critical band pattern information for digital audio wherein quantization bands differ from critical bands
US7016547B1 (en) 2002-06-28 2006-03-21 Microsoft Corporation Adaptive entropy encoding/decoding for screen capture content
DK1400954T3 (da) 2002-09-04 2008-03-31 Microsoft Corp Entropi-kodning ved tilpasning af kodning mellem niveau- og runlængde/niveau-moduser
US7502743B2 (en) * 2002-09-04 2009-03-10 Microsoft Corporation Multi-channel audio encoding and decoding with multi-channel transform selection
US7299190B2 (en) * 2002-09-04 2007-11-20 Microsoft Corporation Quantization and inverse quantization for audio
US7433824B2 (en) 2002-09-04 2008-10-07 Microsoft Corporation Entropy coding by adapting coding between level and run-length/level modes
JP4676140B2 (ja) * 2002-09-04 2011-04-27 マイクロソフト コーポレーション オーディオの量子化および逆量子化
KR100524065B1 (ko) * 2002-12-23 2005-10-26 삼성전자주식회사 시간-주파수 상관성을 이용한 개선된 오디오 부호화및/또는 복호화 방법과 그 장치
TWI220753B (en) * 2003-01-20 2004-09-01 Mediatek Inc Method for determining quantization parameters
US7724827B2 (en) 2003-09-07 2010-05-25 Microsoft Corporation Multi-layer run level encoding and decoding
US7782954B2 (en) 2003-09-07 2010-08-24 Microsoft Corporation Scan patterns for progressive video content
US7688894B2 (en) 2003-09-07 2010-03-30 Microsoft Corporation Scan patterns for interlaced video content
US20070206682A1 (en) * 2003-09-29 2007-09-06 Eric Hamilton Method And Apparatus For Coding Information
TWI227866B (en) * 2003-11-07 2005-02-11 Mediatek Inc Subband analysis/synthesis filtering method
US7933767B2 (en) * 2004-12-27 2011-04-26 Nokia Corporation Systems and methods for determining pitch lag for a current frame of information
EP2290824B1 (en) * 2005-01-12 2012-05-23 Nippon Telegraph And Telephone Corporation Long term prediction coding and decoding method, devices thereof, program thereof, and recording medium
US7693709B2 (en) 2005-07-15 2010-04-06 Microsoft Corporation Reordering coefficients for waveform coding or decoding
US7539612B2 (en) * 2005-07-15 2009-05-26 Microsoft Corporation Coding and decoding scale factor information
US7599840B2 (en) 2005-07-15 2009-10-06 Microsoft Corporation Selectively using multiple entropy models in adaptive coding and decoding
US7684981B2 (en) 2005-07-15 2010-03-23 Microsoft Corporation Prediction of spectral coefficients in waveform coding and decoding
US8599925B2 (en) 2005-08-12 2013-12-03 Microsoft Corporation Efficient coding and decoding of transform blocks
US7933337B2 (en) 2005-08-12 2011-04-26 Microsoft Corporation Prediction of transform coefficients for image compression
US7565018B2 (en) 2005-08-12 2009-07-21 Microsoft Corporation Adaptive coding and decoding of wide-range coefficients
GB2436192B (en) * 2006-03-14 2008-03-05 Motorola Inc Speech communication unit integrated circuit and method therefor
DE102006022346B4 (de) * 2006-05-12 2008-02-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Informationssignalcodierung
RU2464650C2 (ru) * 2006-12-13 2012-10-20 Панасоник Корпорэйшн Устройство и способ кодирования, устройство и способ декодирования
US8184710B2 (en) 2007-02-21 2012-05-22 Microsoft Corporation Adaptive truncation of transform coefficient data in a transform-based digital media codec
WO2008114075A1 (en) * 2007-03-16 2008-09-25 Nokia Corporation An encoder
US7774205B2 (en) 2007-06-15 2010-08-10 Microsoft Corporation Coding of sparse digital media spectral data
CN101075436B (zh) * 2007-06-26 2011-07-13 北京中星微电子有限公司 带补偿的音频编、解码方法及装置
US20090048827A1 (en) * 2007-08-17 2009-02-19 Manoj Kumar Method and system for audio frame estimation
EP2077551B1 (en) * 2008-01-04 2011-03-02 Dolby Sweden AB Audio encoder and decoder
WO2009132662A1 (en) * 2008-04-28 2009-11-05 Nokia Corporation Encoding/decoding for improved frequency response
US8179974B2 (en) 2008-05-02 2012-05-15 Microsoft Corporation Multi-level representation of reordered transform coefficients
KR20090122143A (ko) * 2008-05-23 2009-11-26 엘지전자 주식회사 오디오 신호 처리 방법 및 장치
US8406307B2 (en) 2008-08-22 2013-03-26 Microsoft Corporation Entropy coding/decoding of hierarchically organized data
CN104240713A (zh) 2008-09-18 2014-12-24 韩国电子通信研究院 编码方法和解码方法
WO2010091554A1 (zh) * 2009-02-13 2010-08-19 华为技术有限公司 一种基音周期检测方法和装置
DE102010006573B4 (de) * 2010-02-02 2012-03-15 Rohde & Schwarz Gmbh & Co. Kg IQ-Datenkompression für Breitbandanwendungen
ES2769845T3 (es) 2013-01-08 2020-06-29 Dolby Int Ab Predicción basada en modelo en un banco de filtros
WO2018101868A1 (en) * 2016-12-02 2018-06-07 Dirac Research Ab Processing of an audio input signal
CN112564713B (zh) * 2020-11-30 2023-09-19 福州大学 高效率低时延的动觉信号编解码器及编解码方法

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5921039B2 (ja) 1981-11-04 1984-05-17 日本電信電話株式会社 適応予測符号化方式
US4969192A (en) 1987-04-06 1990-11-06 Voicecraft, Inc. Vector adaptive predictive coder for speech and audio
GB8803390D0 (en) 1988-02-13 1988-03-16 Univ Belfast Method and apparatus for electrical signal coding
FR2628589B1 (fr) * 1988-03-14 1994-03-04 Etat Francais Codeur differentiel a filtre predicteur auto-adaptatif et decodeur utilisable en liaison avec un tel codeur
EP0364647B1 (en) * 1988-10-19 1995-02-22 International Business Machines Corporation Improvement to vector quantizing coder
IT1232084B (it) * 1989-05-03 1992-01-23 Cselt Centro Studi Lab Telecom Sistema di codifica per segnali audio a banda allargata
FR2646978B1 (fr) 1989-05-11 1991-08-23 France Etat Procede et installation a codage de signaux sonores
US5115240A (en) * 1989-09-26 1992-05-19 Sony Corporation Method and apparatus for encoding voice signals divided into a plurality of frequency bands
CA2010830C (en) 1990-02-23 1996-06-25 Jean-Pierre Adoul Dynamic codebook for efficient speech coding based on algebraic codes
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
JPH04119542A (ja) 1990-09-07 1992-04-21 Nikon Corp 光磁気記録媒体カートリッジ
US5206884A (en) 1990-10-25 1993-04-27 Comsat Transform domain quantization technique for adaptive predictive coding
FI95085C (fi) 1992-05-11 1995-12-11 Nokia Mobile Phones Ltd Menetelmä puhesignaalin digitaaliseksi koodaamiseksi sekä puhekooderi menetelmän suorittamiseksi
FI91345C (fi) 1992-06-24 1994-06-10 Nokia Mobile Phones Ltd Menetelmä kanavanvaihdon tehostamiseksi
JP3042886B2 (ja) * 1993-03-26 2000-05-22 モトローラ・インコーポレーテッド ベクトル量子化器の方法および装置
IT1270438B (it) * 1993-06-10 1997-05-05 Sip Procedimento e dispositivo per la determinazione del periodo del tono fondamentale e la classificazione del segnale vocale in codificatori numerici della voce
FI98163C (fi) * 1994-02-08 1997-04-25 Nokia Mobile Phones Ltd Koodausjärjestelmä parametriseen puheenkoodaukseen
EP0709981B1 (en) * 1994-10-28 2002-01-09 RAI RADIOTELEVISIONE ITALIANA (S.p.A.) Subband coding with pitchband predictive coding in each subband
CA2206129C (en) * 1994-12-20 2009-11-10 Dolby Laboratories Licensing Corporation Method and apparatus for applying waveform prediction to subbands of a perceptual coding system
US5706395A (en) * 1995-04-19 1998-01-06 Texas Instruments Incorporated Adaptive weiner filtering using a dynamic suppression factor
TW321810B (es) * 1995-10-26 1997-12-01 Sony Co Ltd
JP3481027B2 (ja) * 1995-12-18 2003-12-22 沖電気工業株式会社 音声符号化装置
US5778335A (en) * 1996-02-26 1998-07-07 The Regents Of The University Of California Method and apparatus for efficient multiband celp wideband speech and music coding and decoding
FI964975A7 (fi) * 1996-12-12 1998-06-13 Nokia Mobile Phones Ltd Menetelmä ja laite puheen koodaamiseksi

Also Published As

Publication number Publication date
AU6216498A (en) 1998-10-12
SE521129C2 (sv) 2003-09-30
FR2761801B1 (fr) 1999-12-31
FI114248B (fi) 2004-09-15
US20040093208A1 (en) 2004-05-13
WO1998042083A1 (en) 1998-09-24
JP2003140697A (ja) 2003-05-16
GB9805294D0 (en) 1998-05-06
FR2761801A1 (fr) 1998-10-09
US6721700B1 (en) 2004-04-13
DE19811039B4 (de) 2005-07-21
GB2323759A (en) 1998-09-30
JP3391686B2 (ja) 2003-03-31
JPH10282999A (ja) 1998-10-23
EP0966793B1 (en) 2001-09-19
KR20000076273A (ko) 2000-12-26
KR100469002B1 (ko) 2005-01-29
FI971108A0 (fi) 1997-03-14
EP0966793A1 (en) 1999-12-29
SE9800776D0 (sv) 1998-03-10
CN1135721C (zh) 2004-01-21
FI971108A7 (fi) 1998-09-15
GB2323759B (en) 2002-01-16
CN1195930A (zh) 1998-10-14
DE19811039A1 (de) 1998-09-17
AU733156B2 (en) 2001-05-10
SE9800776L (sv) 1998-09-15
US7194407B2 (en) 2007-03-20

Similar Documents

Publication Publication Date Title
SE9800776D0 (sv) Audio coding method and apparatus
MY206084A (en) Methods and devices for generating or decoding a bitstream comprising immersive audio signals
NO993820D0 (no) Anordning og fremgangsmåte for å frembringe kodede höyfrekvenssignaler
MX2021006565A (es) Aparato, metodo y programa de computadora para codificacion, decodificacion, procesamiento de escenas y otros procedimientos relacionados con codificacion de audio espacial basada en dirac que utiliza compensacion difusa.
AU6816794A (en) Apparatus and method for coding or decoding signals, and recording medium
WO2002033442A3 (en) Method of using cascaded sweeps for source coding and harmonic cancellation
DE60334479D1 (de) Echtzeitoszilloskop mit hoher bandbreite
CY1107070T1 (el) Ψηφιακο σημειο-πολυσημειακο συστημα μεταδοσης δεδομενων σε ηλεκτρικο δικτυο
PL2265040T3 (pl) Zaawansowane przetwarzanie oparte o zespolony-wykładniczo-modulowany bank filtrów i sposoby sygnalizowania adaptacyjnego w czasie
WO2006050112A3 (en) Audio spatial environment engine
RU2007120528A (ru) Многоканальное кодирование и декодирование
ATE121882T1 (de) System zur übertragung.
IT1121496B (it) Procedimento e dispositivo per l effettuazione di misure oggettive di qualita su apparecchiature di trasmissione di segnali fonici
DE60303346D1 (de) Encodier- und/oder Decodierverfahren für digitale Audiosignale, basierend auf Zeit-Frequenzkorrelation und Vorrichtung hierzu
ATE81739T1 (de) Verfahren zur uebertragung von information ueber elektrische energieversorgungsnetze.
DE60327273D1 (de) Vorrichtung und Verfahren zur Mehrfachbeschreibungskodierung
EP0280574A3 (en) Method and apparatus for predictive coding
EP0552927A2 (en) Waveform prediction method for acoustic signal and coding/decoding apparatus therefor
MX2025012916A (es) Metodo y aparato de codificacion/decodificacion de imagen para realizar prediccion con base en el tipo de modo de prediccion reconfigurada de nodo hoja, y metodo de transmision de flujo de bits
Hoffmann et al. The Sennheiser vocoder goes digital-on a German R&D project in the 1970s.
DK562582A (da) Fremgangsmaade og apparat til konvertering af elektrisk effekt
EP0142620A3 (en) System for compensating signal errors in a pcm audio transmission
KR860000753A (ko) 신호 변환 장치 및 그 방법
Berouti et al. An embedded-code multirate speech transform coder
Jones et al. A rate-distortion bound on channel requirements for transmission of parameters of adaptive predictive coders, with speech applications

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 966793

Country of ref document: ES