ES2143673T3 - Metodo y aparato para aplicar una prediccion de formas de onda a subbandas de un sistema codificador perceptual. - Google Patents

Metodo y aparato para aplicar una prediccion de formas de onda a subbandas de un sistema codificador perceptual.

Info

Publication number
ES2143673T3
ES2143673T3 ES95944513T ES95944513T ES2143673T3 ES 2143673 T3 ES2143673 T3 ES 2143673T3 ES 95944513 T ES95944513 T ES 95944513T ES 95944513 T ES95944513 T ES 95944513T ES 2143673 T3 ES2143673 T3 ES 2143673T3
Authority
ES
Spain
Prior art keywords
predictive coding
subbands
applying
coding system
band
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
ES95944513T
Other languages
English (en)
Inventor
Mark Franklin Davis
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.)
Dolby Laboratories Licensing Corp
Original Assignee
Dolby Laboratories Licensing Corp
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 Dolby Laboratories Licensing Corp filed Critical Dolby Laboratories Licensing Corp
Application granted granted Critical
Publication of ES2143673T3 publication Critical patent/ES2143673T3/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
    • H04B1/665—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 using psychoacoustic properties of the ear, e.g. masking effect
    • 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
    • G10L25/12—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 prediction coefficients

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

UN SISTEMA DE CODIFICACION DE PERCEPCION DE BANDA DIVIDIDA UTILIZA LA CODIFICACION PREDICTIVA GENERALIZADA DE FORMA DE ONDA EN BANDAS DE FRECUENCIA PARA ASI REDUCIR AUN MAS LOS REQUERIMIENTOS DE INFORMACION DE LA SEÑAL CODIFICADA. EL ORDEN DE LOS PREDICTORES SE SELECCIONA PARA EQUILIBRAR LOS REQUERIMIENTOS DE PRECISION DE PREDICCION Y RESPUESTA RAPIDA. LA CODIFICACION PREDICTIVA PUEDE SER ADAPTABLEMENTE INHIBIDA EN UNA BANDA DURANTE INTERVALOS EN LOS QUE NO SE PRODUCE GANANCIA DE CODIFICACION PREDICTIVA.
ES95944513T 1994-12-20 1995-12-20 Metodo y aparato para aplicar una prediccion de formas de onda a subbandas de un sistema codificador perceptual. Expired - Lifetime ES2143673T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US36015094A 1994-12-20 1994-12-20

Publications (1)

Publication Number Publication Date
ES2143673T3 true ES2143673T3 (es) 2000-05-16

Family

ID=23416807

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95944513T Expired - Lifetime ES2143673T3 (es) 1994-12-20 1995-12-20 Metodo y aparato para aplicar una prediccion de formas de onda a subbandas de un sistema codificador perceptual.

Country Status (10)

Country Link
US (1) US5699484A (es)
EP (1) EP0799531B1 (es)
JP (1) JP4033898B2 (es)
AT (1) ATE191107T1 (es)
AU (1) AU704693B2 (es)
CA (1) CA2206129C (es)
DE (1) DE69515907T2 (es)
DK (1) DK0799531T3 (es)
ES (1) ES2143673T3 (es)
WO (1) WO1996019876A1 (es)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6757913B2 (en) 1996-07-15 2004-06-29 Gregory D. Knox Wireless music and data transceiver system
JP2891193B2 (ja) * 1996-08-16 1999-05-17 日本電気株式会社 広帯域音声スペクトル係数量子化装置
FI114248B (fi) * 1997-03-14 2004-09-15 Nokia Corp Menetelmä ja laite audiokoodaukseen ja audiodekoodaukseen
US6173317B1 (en) 1997-03-14 2001-01-09 Microsoft Corporation Streaming and displaying a video stream with synchronized annotations over a computer network
US6115420A (en) * 1997-03-14 2000-09-05 Microsoft Corporation Digital video signal encoder and encoding method
US6151632A (en) * 1997-03-14 2000-11-21 Microsoft Corporation Method and apparatus for distributed transmission of real-time multimedia information
US5890125A (en) * 1997-07-16 1999-03-30 Dolby Laboratories Licensing Corporation Method and apparatus for encoding and decoding multiple audio channels at low bit rates using adaptive selection of encoding method
US5913191A (en) * 1997-10-17 1999-06-15 Dolby Laboratories Licensing Corporation Frame-based audio coding with additional filterbank to suppress aliasing artifacts at frame boundaries
US6012025A (en) * 1998-01-28 2000-01-04 Nokia Mobile Phones Limited Audio coding method and apparatus using backward adaptive prediction
JP3199020B2 (ja) * 1998-02-27 2001-08-13 日本電気株式会社 音声音楽信号の符号化装置および復号装置
US6266644B1 (en) * 1998-09-26 2001-07-24 Liquid Audio, Inc. Audio encoding apparatus and methods
EP1076297A1 (en) * 1999-08-09 2001-02-14 Deutsche Thomson-Brandt Gmbh Method for fast Fourier transformation of audio signals
US6567781B1 (en) 1999-12-30 2003-05-20 Quikcat.Com, Inc. Method and apparatus for compressing audio data using a dynamical system having a multi-state dynamical rule set and associated transform basis function
US6735561B1 (en) 2000-03-29 2004-05-11 At&T Corp. Effective deployment of temporal noise shaping (TNS) filters
US7099830B1 (en) 2000-03-29 2006-08-29 At&T Corp. Effective deployment of temporal noise shaping (TNS) filters
US7110953B1 (en) * 2000-06-02 2006-09-19 Agere Systems Inc. Perceptual coding of audio signals using separated irrelevancy reduction and redundancy reduction
US7218789B2 (en) * 2000-12-01 2007-05-15 Lizardtech, Inc. Method for lossless encoding of image data by approximating linear transforms and preserving selected properties for image processing
US6647149B2 (en) 2001-01-03 2003-11-11 Electronics For Imaging, Inc. Methods and apparatus for securely transmitting and processing digital image data
US6980933B2 (en) * 2004-01-27 2005-12-27 Dolby Laboratories Licensing Corporation Coding techniques using estimated spectral magnitude and phase derived from MDCT coefficients
JP4661074B2 (ja) * 2004-04-07 2011-03-30 ソニー株式会社 情報処理システム、情報処理方法、並びにロボット装置
EP1852848A1 (en) * 2006-05-05 2007-11-07 Deutsche Thomson-Brandt GmbH Method and apparatus for lossless encoding of a source signal using a lossy encoded data stream and a lossless extension data stream
DE102006022346B4 (de) 2006-05-12 2008-02-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Informationssignalcodierung
US8005671B2 (en) * 2006-12-04 2011-08-23 Qualcomm Incorporated Systems and methods for dynamic normalization to reduce loss in precision for low-level signals
KR101016224B1 (ko) * 2006-12-12 2011-02-25 프라운호퍼-게젤샤프트 추르 푀르데룽 데어 안제반텐 포르슝 에 파우 인코더, 디코더 및 시간 영역 데이터 스트림을 나타내는 데이터 세그먼트를 인코딩하고 디코딩하는 방법
US8571503B2 (en) * 2010-03-05 2013-10-29 Mitac International Corp. Signal receiving methods and devices
CN102812512B (zh) * 2010-03-23 2014-06-25 Lg电子株式会社 处理音频信号的方法和装置
CN105976824B (zh) * 2012-12-06 2021-06-08 华为技术有限公司 信号解码的方法和设备
PL2943953T3 (pl) 2013-01-08 2017-07-31 Dolby International Ab Prognozowanie oparte na modelu w próbkowanym krytycznie banku filtrów
US11545164B2 (en) 2017-06-19 2023-01-03 Rtx A/S Audio signal encoding and decoding

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0111612B1 (fr) * 1982-11-26 1987-06-24 International Business Machines Corporation Procédé et dispositif de codage d'un signal vocal
US4751736A (en) * 1985-01-31 1988-06-14 Communications Satellite Corporation Variable bit rate speech codec with backward-type prediction and quantization
GB8803390D0 (en) * 1988-02-13 1988-03-16 Univ Belfast Method and apparatus for electrical signal coding
US5185800A (en) * 1989-10-13 1993-02-09 Centre National D'etudes Des Telecommunications Bit allocation device for transformed digital audio broadcasting signals with adaptive quantization based on psychoauditive criterion
CN1062963C (zh) * 1990-04-12 2001-03-07 多尔拜实验特许公司 用于产生高质量声音信号的解码器和编码器
US5274740A (en) * 1991-01-08 1993-12-28 Dolby Laboratories Licensing Corporation Decoder for variable number of channel presentation of multidimensional sound fields
JP3310682B2 (ja) * 1992-01-21 2002-08-05 日本ビクター株式会社 音響信号の符号化方法及び再生方法
US5291557A (en) * 1992-10-13 1994-03-01 Dolby Laboratories Licensing Corporation Adaptive rematrixing of matrixed audio signals
US5451954A (en) * 1993-08-04 1995-09-19 Dolby Laboratories Licensing Corporation Quantization noise suppression for encoder/decoder system

Also Published As

Publication number Publication date
ATE191107T1 (de) 2000-04-15
CA2206129A1 (en) 1996-06-27
EP0799531A1 (en) 1997-10-08
DE69515907D1 (de) 2000-04-27
DK0799531T3 (da) 2000-07-10
AU4687496A (en) 1996-07-10
US5699484A (en) 1997-12-16
JP4033898B2 (ja) 2008-01-16
JPH10511243A (ja) 1998-10-27
WO1996019876A1 (en) 1996-06-27
DE69515907T2 (de) 2000-08-17
EP0799531B1 (en) 2000-03-22
AU704693B2 (en) 1999-04-29
CA2206129C (en) 2009-11-10

Similar Documents

Publication Publication Date Title
ES2143673T3 (es) Metodo y aparato para aplicar una prediccion de formas de onda a subbandas de un sistema codificador perceptual.
KR100346066B1 (ko) 오디오신호 코딩방법
EP0587733B1 (en) Low computational-complexity digital filter bank
CA2197128A1 (en) Enhanced Joint Stereo Coding Method Using Temporal Envelope Shaping
DE69737489T2 (de) Formung des erkennbaren Rauschsignals in der Zeitdomäne mittels LPC-Voraussage im Frequenzraum
EP0524264B1 (en) Adaptive-block-length, adaptive-transform, and adaptive-window transform coder and decoder for high-quality audio
EP0725494A1 (en) Perceptual audio compression based on loudness uncertainty
JP4643019B2 (ja) 合成フィルタ雑音伸長の補償を持つ知覚音声コーダの量子化
Tsutsui et al. ATRAC: Adaptive transform acoustic coding for MiniDisc
KR930020409A (ko) 스테레오포닉 오디오 신호의 입력세트 코딩방법
US5737718A (en) Method, apparatus and recording medium for a coder with a spectral-shape-adaptive subband configuration
CN101425294A (zh) 声音编解码与发送接收设备及编码方法、通信终端和基站
DE69422343T2 (de) Gerät, verfahren und system zur komprimierung eines digitalen eingangssignals in mehr als einem kompressionsmodus
EP0720148A1 (en) Method for noise weighting filtering
ATE526661T1 (de) System für die audiodekodierung mit füllung von spektralen lücken
ES2171031T3 (es) Metodo y aparato para codificar y descodificar multiples canales de audio a bajas frecuencias binarias.
KR960704300A (ko) 부호화 방법, 복호화 방법, 부호화/복호화 방법, 부호화 장치, 복호화 장치 및 부호화/복호화 장치(Encoding method, decoding method, encoding/decoding method, encoding apparatus, decoding apparatus, and encoding/decoding apparatus)
CA2166551A1 (en) Computationally efficient adaptive bit allocation for coding method and apparatus
RU98105972A (ru) Способ и устройство кодирования входного сигнала, способ и устройство декодирования последовательности кодов и носитель записи
SE9501640D0 (sv) Förfarande vid radiokommunikationssystem
CA2119697A1 (en) Reducing Search Complexity for Code-Excited Linear Prediction (CELP) Coding
Schroeder Linear prediction, entropy and signal analysis
Malah et al. Performance of transform and subband coding systems combined with harmonic scaling of speech
ES2156273T3 (es) Cuantificacion de los parametros espectrales para un codificado eficaz de la palabra, utilizando una matriz de prediccion escindida.
Roy et al. Wideband CELP speech coding at 16 kbits/sec

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 799531

Country of ref document: ES