CA2527971C - Fidelity-optimised variable frame length encoding - Google Patents

Fidelity-optimised variable frame length encoding Download PDF

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Publication number
CA2527971C
CA2527971C CA2527971A CA2527971A CA2527971C CA 2527971 C CA2527971 C CA 2527971C CA 2527971 A CA2527971 A CA 2527971A CA 2527971 A CA2527971 A CA 2527971A CA 2527971 C CA2527971 C CA 2527971C
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CA
Canada
Prior art keywords
signal
encoding
sub
frame
frames
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
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CA2527971A
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English (en)
French (fr)
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CA2527971A1 (en
Inventor
Stefan Bruhn
Ingemar Johansson
Anisse Taleb
Daniel Enstroem
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.)
Telefonaktiebolaget LM Ericsson AB
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Telefonaktiebolaget LM Ericsson AB
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Priority claimed from SE0303501A external-priority patent/SE0303501D0/xx
Application filed by Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Priority to CA2690885A priority Critical patent/CA2690885C/en
Publication of CA2527971A1 publication Critical patent/CA2527971A1/en
Application granted granted Critical
Publication of CA2527971C publication Critical patent/CA2527971C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Endoscopes (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
CA2527971A 2003-12-19 2004-12-15 Fidelity-optimised variable frame length encoding Expired - Lifetime CA2527971C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2690885A CA2690885C (en) 2003-12-19 2004-12-15 Fidelity-optimised variable frame length encoding

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
SE0303501-1 2003-12-19
SE0303501A SE0303501D0 (sv) 2003-12-19 2003-12-19 Filter-based parametric multi-channel coding
SE0400417-2 2004-02-20
SE0400417A SE527670C2 (sv) 2003-12-19 2004-02-20 Naturtrogenhetsoptimerad kodning med variabel ramlängd
PCT/SE2004/001867 WO2005059899A1 (en) 2003-12-19 2004-12-15 Fidelity-optimised variable frame length encoding

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA2690885A Division CA2690885C (en) 2003-12-19 2004-12-15 Fidelity-optimised variable frame length encoding

Publications (2)

Publication Number Publication Date
CA2527971A1 CA2527971A1 (en) 2005-06-30
CA2527971C true CA2527971C (en) 2011-03-15

Family

ID=31996354

Family Applications (2)

Application Number Title Priority Date Filing Date
CA2527971A Expired - Lifetime CA2527971C (en) 2003-12-19 2004-12-15 Fidelity-optimised variable frame length encoding
CA2690885A Expired - Lifetime CA2690885C (en) 2003-12-19 2004-12-15 Fidelity-optimised variable frame length encoding

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA2690885A Expired - Lifetime CA2690885C (en) 2003-12-19 2004-12-15 Fidelity-optimised variable frame length encoding

Country Status (14)

Country Link
EP (2) EP1845519B1 (pt)
JP (2) JP4335917B2 (pt)
CN (2) CN101118747B (pt)
AT (2) ATE443317T1 (pt)
AU (1) AU2004298708B2 (pt)
BR (2) BRPI0419281B1 (pt)
CA (2) CA2527971C (pt)
DE (2) DE602004023240D1 (pt)
MX (1) MXPA05012230A (pt)
PL (1) PL1623411T3 (pt)
RU (2) RU2305870C2 (pt)
SE (1) SE527670C2 (pt)
WO (1) WO2005059899A1 (pt)
ZA (1) ZA200508980B (pt)

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Also Published As

Publication number Publication date
CA2690885C (en) 2014-01-21
JP2008026914A (ja) 2008-02-07
DE602004008613D1 (de) 2007-10-11
SE0400417L (sv) 2005-06-20
PL1623411T3 (pl) 2008-01-31
CN100559465C (zh) 2009-11-11
DE602004023240D1 (de) 2009-10-29
EP1845519A3 (en) 2007-11-07
SE527670C2 (sv) 2006-05-09
HK1115665A1 (en) 2008-12-05
RU2007121143A (ru) 2008-12-10
EP1623411A1 (en) 2006-02-08
EP1623411B1 (en) 2007-08-29
HK1091585A1 (zh) 2007-01-19
CN101118747A (zh) 2008-02-06
RU2425340C2 (ru) 2011-07-27
ATE371924T1 (de) 2007-09-15
AU2004298708B2 (en) 2008-01-03
MXPA05012230A (es) 2006-02-10
AU2004298708A1 (en) 2005-06-30
CA2527971A1 (en) 2005-06-30
ATE443317T1 (de) 2009-10-15
SE0400417D0 (sv) 2004-02-20
BRPI0410856A (pt) 2006-07-04
JP4335917B2 (ja) 2009-09-30
RU2005134365A (ru) 2006-05-27
BRPI0410856B8 (pt) 2019-10-15
BRPI0410856B1 (pt) 2019-10-01
BRPI0419281B1 (pt) 2018-08-14
CN1816847A (zh) 2006-08-09
CN101118747B (zh) 2011-02-23
EP1845519B1 (en) 2009-09-16
DE602004008613T2 (de) 2008-06-12
EP1845519A2 (en) 2007-10-17
ZA200508980B (en) 2007-03-28
RU2305870C2 (ru) 2007-09-10
JP4589366B2 (ja) 2010-12-01
JP2007529021A (ja) 2007-10-18
WO2005059899A1 (en) 2005-06-30
CA2690885A1 (en) 2005-06-30

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