DK0799531T3 - Fremgangsmådeapparat til at anvende bølgeformsforudsigelse til underbånd af et kodningssystem, der vedrører sanseopfattelse - Google Patents

Fremgangsmådeapparat til at anvende bølgeformsforudsigelse til underbånd af et kodningssystem, der vedrører sanseopfattelse

Info

Publication number
DK0799531T3
DK0799531T3 DK95944513T DK95944513T DK0799531T3 DK 0799531 T3 DK0799531 T3 DK 0799531T3 DK 95944513 T DK95944513 T DK 95944513T DK 95944513 T DK95944513 T DK 95944513T DK 0799531 T3 DK0799531 T3 DK 0799531T3
Authority
DK
Denmark
Prior art keywords
subband
predictive coding
coding system
band
system related
Prior art date
Application number
DK95944513T
Other languages
English (en)
Inventor
Mark Franklin Davis
Original Assignee
Dolby Lab 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 Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Application granted granted Critical
Publication of DK0799531T3 publication Critical patent/DK0799531T3/da

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)
DK95944513T 1994-12-20 1995-12-20 Fremgangsmådeapparat til at anvende bølgeformsforudsigelse til underbånd af et kodningssystem, der vedrører sanseopfattelse DK0799531T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US36015094A 1994-12-20 1994-12-20
PCT/US1995/016748 WO1996019876A1 (en) 1994-12-20 1995-12-20 Method and apparatus for applying waveform prediction to subbands of a perceptual coding system

Publications (1)

Publication Number Publication Date
DK0799531T3 true DK0799531T3 (da) 2000-07-10

Family

ID=23416807

Family Applications (1)

Application Number Title Priority Date Filing Date
DK95944513T DK0799531T3 (da) 1994-12-20 1995-12-20 Fremgangsmådeapparat til at anvende bølgeformsforudsigelse til underbånd af et kodningssystem, der vedrører sanseopfattelse

Country Status (10)

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

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
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
FI114248B (fi) 1997-03-14 2004-09-15 Nokia Corp Menetelmä ja laite audiokoodaukseen ja audiodekoodaukseen
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
US7099830B1 (en) 2000-03-29 2006-08-29 At&T Corp. Effective deployment of temporal noise shaping (TNS) filters
US6735561B1 (en) * 2000-03-29 2004-05-11 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
WO2002045005A1 (en) * 2000-12-01 2002-06-06 Lizardtech, Inc. Method for lossless encoding of image data by approximating linear transforms and preserving selected properties
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
AU2007331763B2 (en) 2006-12-12 2011-06-30 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Encoder, decoder and methods for encoding and decoding data segments representing a time-domain data stream
US8571503B2 (en) * 2010-03-05 2013-10-29 Mitac International Corp. Signal receiving methods and devices
CN104021793B (zh) * 2010-03-23 2017-05-17 Lg电子株式会社 处理音频信号的方法和装置
CN103854653B (zh) * 2012-12-06 2016-12-28 华为技术有限公司 信号解码的方法和设备
CA3054712C (en) 2013-01-08 2020-06-09 Lars Villemoes Model based prediction in a critically sampled filterbank
WO2018233788A1 (en) * 2017-06-19 2018-12-27 Rtx A/S AUDIO SIGNAL CODING AND DECODING

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3276651D1 (en) * 1982-11-26 1987-07-30 Ibm Speech signal coding method and apparatus
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
CA2206129A1 (en) 1996-06-27
ATE191107T1 (de) 2000-04-15
DE69515907D1 (de) 2000-04-27
JP4033898B2 (ja) 2008-01-16
WO1996019876A1 (en) 1996-06-27
JPH10511243A (ja) 1998-10-27
CA2206129C (en) 2009-11-10
DE69515907T2 (de) 2000-08-17
AU704693B2 (en) 1999-04-29
US5699484A (en) 1997-12-16
AU4687496A (en) 1996-07-10
ES2143673T3 (es) 2000-05-16
EP0799531B1 (en) 2000-03-22
EP0799531A1 (en) 1997-10-08

Similar Documents

Publication Publication Date Title
DK0799531T3 (da) Fremgangsmådeapparat til at anvende bølgeformsforudsigelse til underbånd af et kodningssystem, der vedrører sanseopfattelse
KR930020409A (ko) 스테레오포닉 오디오 신호의 입력세트 코딩방법
EP0446037B1 (en) Hybrid perceptual audio coding
DE69432012T2 (de) Wahrnehmungsgebundene Kodierung von Audiosignalen
CA2197128A1 (en) Enhanced Joint Stereo Coding Method Using Temporal Envelope Shaping
MY129887A (en) Method and apparatus for performing reduced rate variable rate vocoding
DE69422343D1 (de) Gerät, verfahren und system zur komprimierung eines digitalen eingangssignals in mehr als einem kompressionsmodus
DE69521254D1 (de) Verfahren zur sprachkodierung
CA2144823A1 (en) Estimation of excitation parameters
DE69531471D1 (de) Mehrkanalsignalkodierung unter Verwendung gewichteter Vektorquantisierung
ATE291771T1 (de) Verfahren zum kodieren und dekodieren von audiodaten
ATE526661T1 (de) System für die audiodekodierung mit füllung von spektralen lücken
DE69028675T2 (de) Wahrnehmungsgebundene Kodierung von Audiosignalen
NO990107D0 (no) Koding og dekoding av audiosignaler ved prediksjon og med en intensitetsstereoprosess
EP0392517A3 (en) Speech coding apparatus
TW359059B (en) Method and arrangement for encoding a video signal
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)
MX9300401A (es) Prediccion a largo plazo de modo doble en codificacion de voz.
SE9501640D0 (sv) Förfarande vid radiokommunikationssystem
Mahieux et al. Transform coding of audio signals using correlation between successive transform blocks
CA2119697A1 (en) Reducing Search Complexity for Code-Excited Linear Prediction (CELP) Coding
Schroeder Linear prediction, entropy and signal analysis
ES2156273T3 (es) Cuantificacion de los parametros espectrales para un codificado eficaz de la palabra, utilizando una matriz de prediccion escindida.
CA2314421A1 (en) Subband encoding and decoding system for data compression and decompression
CA2005115A1 (en) Low-delay code-excited linear predictive coder for speech or audio