NO180030C - Polyfonisk koding - Google Patents

Polyfonisk koding

Info

Publication number
NO180030C
NO180030C NO914947A NO914947A NO180030C NO 180030 C NO180030 C NO 180030C NO 914947 A NO914947 A NO 914947A NO 914947 A NO914947 A NO 914947A NO 180030 C NO180030 C NO 180030C
Authority
NO
Norway
Prior art keywords
adaptive filter
sum
filter
signal
decoder
Prior art date
Application number
NO914947A
Other languages
English (en)
Norwegian (no)
Other versions
NO180030B (no
NO914947D0 (no
NO914947L (no
Inventor
Christopher Ellis Holt
Edward Munday
Barry Michael George Cheetham
Original Assignee
British Telecomm
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10658483&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NO180030(C) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by British Telecomm filed Critical British Telecomm
Publication of NO914947D0 publication Critical patent/NO914947D0/no
Publication of NO914947L publication Critical patent/NO914947L/no
Publication of NO180030B publication Critical patent/NO180030B/no
Publication of NO180030C publication Critical patent/NO180030C/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H04H20/88—Stereophonic broadcast systems
    • 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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Computational Linguistics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Mathematical Physics (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Stereophonic System (AREA)
NO914947A 1989-06-15 1991-12-13 Polyfonisk koding NO180030C (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898913758A GB8913758D0 (en) 1989-06-15 1989-06-15 Polyphonic coding
PCT/GB1990/000928 WO1990016136A1 (fr) 1989-06-15 1990-06-15 Codage polyphonique

Publications (4)

Publication Number Publication Date
NO914947D0 NO914947D0 (no) 1991-12-13
NO914947L NO914947L (no) 1992-02-13
NO180030B NO180030B (no) 1996-10-21
NO180030C true NO180030C (no) 1997-01-29

Family

ID=10658483

Family Applications (1)

Application Number Title Priority Date Filing Date
NO914947A NO180030C (no) 1989-06-15 1991-12-13 Polyfonisk koding

Country Status (13)

Country Link
EP (1) EP0478615B2 (fr)
JP (1) JP2703405B2 (fr)
AT (1) ATE121900T1 (fr)
AU (1) AU640667B2 (fr)
CA (1) CA2058984C (fr)
DE (1) DE69018989T3 (fr)
DK (1) DK0478615T3 (fr)
ES (1) ES2071823T3 (fr)
FI (1) FI915873A0 (fr)
GB (1) GB8913758D0 (fr)
HK (1) HK137196A (fr)
NO (1) NO180030C (fr)
WO (1) WO1990016136A1 (fr)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5274740A (en) * 1991-01-08 1993-12-28 Dolby Laboratories Licensing Corporation Decoder for variable number of channel presentation of multidimensional sound fields
AU653582B2 (en) * 1991-01-08 1994-10-06 Dolby Laboratories Licensing Corporation Encoder/decoder for multidimensional sound fields
DE4136825C1 (fr) * 1991-11-08 1993-03-18 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung Ev, 8000 Muenchen, De
US5278909A (en) * 1992-06-08 1994-01-11 International Business Machines Corporation System and method for stereo digital audio compression with co-channel steering
EP0608937B1 (fr) * 1993-01-27 2000-04-12 Koninklijke Philips Electronics N.V. Dispositif de traitement de signaux audio pour dériver un signal de canal central et système de reproduction audiovisuelle comprenant un tel dispositif de traitement
DE4320990B4 (de) * 1993-06-05 2004-04-29 Robert Bosch Gmbh Verfahren zur Redundanzreduktion
US5488665A (en) * 1993-11-23 1996-01-30 At&T Corp. Multi-channel perceptual audio compression system with encoding mode switching among matrixed channels
DE19526366A1 (de) 1995-07-20 1997-01-23 Bosch Gmbh Robert Verfahren zur Redundanzreduktion bei der Codierung von mehrkanaligen Signalen und Vorrichtung zur Dekodierung von redundanzreduzierten, mehrkanaligen Signalen
GB2303516A (en) * 1995-07-20 1997-02-19 Plessey Telecomm Teleconferencing
US6016473A (en) * 1998-04-07 2000-01-18 Dolby; Ray M. Low bit-rate spatial coding method and system
DE19829284C2 (de) * 1998-05-15 2000-03-16 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Verarbeiten eines zeitlichen Stereosignals und Verfahren und Vorrichtung zum Decodieren eines unter Verwendung einer Prädiktion über der Frequenz codierten Audiobitstroms
SE519552C2 (sv) * 1998-09-30 2003-03-11 Ericsson Telefon Ab L M Flerkanalig signalkodning och -avkodning
SE519976C2 (sv) 2000-09-15 2003-05-06 Ericsson Telefon Ab L M Kodning och avkodning av signaler från flera kanaler
SE519985C2 (sv) * 2000-09-15 2003-05-06 Ericsson Telefon Ab L M Kodning och avkodning av signaler från flera kanaler
SE519981C2 (sv) * 2000-09-15 2003-05-06 Ericsson Telefon Ab L M Kodning och avkodning av signaler från flera kanaler
FR2821475B1 (fr) * 2001-02-23 2003-05-09 France Telecom Procede et dispositif de reconstruction spectrale de signaux a plusieurs voies, notamment de signaux stereophoniques
MX2007005261A (es) * 2004-11-04 2007-07-09 Koninkl Philips Electronics Nv Codificacion y descodificacion de un conjunto de senales.
EP2119306A4 (fr) * 2007-03-01 2012-04-25 Jerry Mahabub Spatialisation audio et simulation d'environnement
CN101981616A (zh) * 2008-04-04 2011-02-23 松下电器产业株式会社 立体声信号变换装置、立体声信号逆变换装置及其方法
BR122020009727B1 (pt) 2008-05-23 2021-04-06 Koninklijke Philips N.V. Método
RU2559899C2 (ru) 2010-04-09 2015-08-20 Долби Интернешнл Аб Стереофоническое кодирование на основе mdct с комплексным предсказанием
EP2375409A1 (fr) 2010-04-09 2011-10-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Codeur audio, décodeur audio et procédés connexes pour le traitement de signaux audio multicanaux au moyen d'une prédiction complexe
BR112012026324B1 (pt) 2010-04-13 2021-08-17 Fraunhofer - Gesellschaft Zur Förderung Der Angewandten Forschung E. V Codificador de aúdio ou vídeo, decodificador de aúdio ou vídeo e métodos relacionados para o processamento do sinal de aúdio ou vídeo de múltiplos canais usando uma direção de previsão variável
UA107771C2 (en) * 2011-09-29 2015-02-10 Dolby Int Ab Prediction-based fm stereo radio noise reduction
US9380387B2 (en) 2014-08-01 2016-06-28 Klipsch Group, Inc. Phase independent surround speaker

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU546069B2 (en) * 1981-09-07 1985-08-15 Kahn, Leonard Richard Am stereo distortion correction
JPH0761043B2 (ja) * 1986-04-10 1995-06-28 株式会社東芝 ステレオ音声伝送蓄積方式
GB8628046D0 (en) * 1986-11-24 1986-12-31 British Telecomm Transmission system

Also Published As

Publication number Publication date
ATE121900T1 (de) 1995-05-15
EP0478615B1 (fr) 1995-04-26
DE69018989T3 (de) 1998-11-19
HK137196A (en) 1996-08-02
AU5837990A (en) 1991-01-08
NO180030B (no) 1996-10-21
DE69018989D1 (de) 1995-06-01
DE69018989T2 (de) 1995-09-07
NO914947D0 (no) 1991-12-13
FI915873A0 (fi) 1991-12-13
CA2058984A1 (fr) 1990-12-16
NO914947L (no) 1992-02-13
AU640667B2 (en) 1993-09-02
CA2058984C (fr) 1998-12-01
EP0478615B2 (fr) 1998-04-15
JP2703405B2 (ja) 1998-01-26
WO1990016136A1 (fr) 1990-12-27
JPH04506141A (ja) 1992-10-22
DK0478615T3 (da) 1995-07-17
ES2071823T3 (es) 1995-07-01
GB8913758D0 (en) 1989-08-02
EP0478615A1 (fr) 1992-04-08

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