PL1639580T3 - Kodowanie sygnałów wielokanałowych - Google Patents

Kodowanie sygnałów wielokanałowych

Info

Publication number
PL1639580T3
PL1639580T3 PL04809080T PL04809080T PL1639580T3 PL 1639580 T3 PL1639580 T3 PL 1639580T3 PL 04809080 T PL04809080 T PL 04809080T PL 04809080 T PL04809080 T PL 04809080T PL 1639580 T3 PL1639580 T3 PL 1639580T3
Authority
PL
Poland
Prior art keywords
coding
channel signals
signals
channel
Prior art date
Application number
PL04809080T
Other languages
English (en)
Inventor
Stefan Bruhn
Ingemar Johansson
Anisse Taleb
Patrik Sandgren
Original Assignee
Ericsson Telefon Ab L M
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
Priority claimed from SE0303499A external-priority patent/SE0303499D0/xx
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of PL1639580T3 publication Critical patent/PL1639580T3/pl

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H04S5/02—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation  of the pseudo four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mathematical Physics (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Filters That Use Time-Delay Elements (AREA)
PL04809080T 2003-12-19 2004-12-15 Kodowanie sygnałów wielokanałowych PL1639580T3 (pl)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE0303499A SE0303499D0 (sv) 2003-12-19 2003-12-19 Multi-channel coding using gain-shape constrained filters
SE0400415A SE527713C2 (sv) 2003-12-19 2004-02-20 Kodning av polyfoniska signaler med villkorsbegränsade filter
EP04809080.7A EP1639580B1 (en) 2003-12-19 2004-12-15 Coding of multi-channel signals
PCT/SE2004/001907 WO2005059901A1 (en) 2003-12-19 2004-12-15 Constrained filter encoding of polyphonic signals

Publications (1)

Publication Number Publication Date
PL1639580T3 true PL1639580T3 (pl) 2014-04-30

Family

ID=31996352

Family Applications (1)

Application Number Title Priority Date Filing Date
PL04809080T PL1639580T3 (pl) 2003-12-19 2004-12-15 Kodowanie sygnałów wielokanałowych

Country Status (8)

Country Link
EP (2) EP2456236A1 (pl)
JP (1) JP4323520B2 (pl)
DK (1) DK1639580T3 (pl)
ES (1) ES2439693T3 (pl)
PL (1) PL1639580T3 (pl)
PT (1) PT1639580E (pl)
SE (1) SE527713C2 (pl)
WO (1) WO2005059901A1 (pl)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008016098A1 (en) * 2006-08-04 2008-02-07 Panasonic Corporation Stereo audio encoding device, stereo audio decoding device, and method thereof
EP2345027B1 (en) 2008-10-10 2018-04-18 Telefonaktiebolaget LM Ericsson (publ) Energy-conserving multi-channel audio coding and decoding

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5434948A (en) 1989-06-15 1995-07-18 British Telecommunications Public Limited Company Polyphonic coding
NL9100173A (nl) 1991-02-01 1992-09-01 Philips Nv Subbandkodeerinrichting, en een zender voorzien van de kodeerinrichting.
US5285498A (en) * 1992-03-02 1994-02-08 At&T Bell Laboratories Method and apparatus for coding audio signals based on perceptual model
SE9700772D0 (sv) 1997-03-03 1997-03-03 Ericsson Telefon Ab L M A high resolution post processing method for a speech decoder
WO2003009206A1 (en) * 2001-07-19 2003-01-30 Sungwoo Kim The system and operational method of mobile telecommunication device for electronic cash
WO2003009208A1 (en) * 2001-07-20 2003-01-30 Medical Research Group Method and apparatus for communicating between an ambulatory medical device and a control device via telemetry using randomized data
EP1500082B1 (en) 2002-04-22 2007-02-14 Koninklijke Philips Electronics N.V. Signal synthesizing

Also Published As

Publication number Publication date
EP1639580A1 (en) 2006-03-29
DK1639580T3 (da) 2014-01-13
SE0400415D0 (sv) 2004-02-20
JP4323520B2 (ja) 2009-09-02
EP2456236A1 (en) 2012-05-23
SE0400415L (sv) 2005-06-20
PT1639580E (pt) 2013-11-19
WO2005059901A1 (en) 2005-06-30
EP1639580B1 (en) 2013-10-23
SE527713C2 (sv) 2006-05-23
ES2439693T3 (es) 2014-01-24
JP2007527543A (ja) 2007-09-27

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