ATE322069T1 - Verfahren zur signalkodierung mittels einer vektorquantisierung - Google Patents

Verfahren zur signalkodierung mittels einer vektorquantisierung

Info

Publication number
ATE322069T1
ATE322069T1 AT02017836T AT02017836T ATE322069T1 AT E322069 T1 ATE322069 T1 AT E322069T1 AT 02017836 T AT02017836 T AT 02017836T AT 02017836 T AT02017836 T AT 02017836T AT E322069 T1 ATE322069 T1 AT E322069T1
Authority
AT
Austria
Prior art keywords
signal
vector quantization
codebook
signal coding
vector
Prior art date
Application number
AT02017836T
Other languages
English (en)
Inventor
Christian Georg Dr Gerlach
Original Assignee
Cit Alcatel
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 Cit Alcatel filed Critical Cit Alcatel
Application granted granted Critical
Publication of ATE322069T1 publication Critical patent/ATE322069T1/de

Links

Classifications

    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0013—Codebook search algorithms

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
AT02017836T 2002-08-08 2002-08-08 Verfahren zur signalkodierung mittels einer vektorquantisierung ATE322069T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02017836A EP1394773B1 (de) 2002-08-08 2002-08-08 Verfahren zur Signalkodierung mittels einer Vektorquantisierung

Publications (1)

Publication Number Publication Date
ATE322069T1 true ATE322069T1 (de) 2006-04-15

Family

ID=31197794

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02017836T ATE322069T1 (de) 2002-08-08 2002-08-08 Verfahren zur signalkodierung mittels einer vektorquantisierung

Country Status (4)

Country Link
US (1) US7769581B2 (de)
EP (1) EP1394773B1 (de)
AT (1) ATE322069T1 (de)
DE (1) DE60210174T2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0005515D0 (en) * 2000-03-08 2000-04-26 Univ Glasgow Improved vector quantization of images
US7546588B2 (en) * 2004-09-09 2009-06-09 International Business Machines Corporation Self-optimizable code with code path selection and efficient memory allocation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50155105A (de) * 1974-06-04 1975-12-15
US4868867A (en) * 1987-04-06 1989-09-19 Voicecraft Inc. Vector excitation speech or audio coder for transmission or storage
US4817157A (en) * 1988-01-07 1989-03-28 Motorola, Inc. Digital speech coder having improved vector excitation source
US4896361A (en) * 1988-01-07 1990-01-23 Motorola, Inc. Digital speech coder having improved vector excitation source
US6199040B1 (en) * 1998-07-27 2001-03-06 Motorola, Inc. System and method for communicating a perceptually encoded speech spectrum signal
US6556966B1 (en) * 1998-08-24 2003-04-29 Conexant Systems, Inc. Codebook structure for changeable pulse multimode speech coding
US6785646B2 (en) * 2001-05-14 2004-08-31 Renesas Technology Corporation Method and system for performing a codebook search used in waveform coding
US6789059B2 (en) * 2001-06-06 2004-09-07 Qualcomm Incorporated Reducing memory requirements of a codebook vector search

Also Published As

Publication number Publication date
EP1394773B1 (de) 2006-03-29
US20040030549A1 (en) 2004-02-12
US7769581B2 (en) 2010-08-03
DE60210174T2 (de) 2006-08-24
DE60210174D1 (de) 2006-05-18
EP1394773A1 (de) 2004-03-03

Similar Documents

Publication Publication Date Title
DE602004007786D1 (de) Verfahren und vorrichtung zur quantisierung des verstärkungsfaktors in einem breitbandsprachkodierer mit variabler bitrate
ATE482451T1 (de) Verfahren und vorrichtung zum codieren und decodieren eines mehrkanaligen audiosignals unter verwendung von virtuelle-quelle-ortsinformationen
ATE407424T1 (de) Verfahren und vorrichtung zur künstlichen erweiterung der bandbreite von sprachsignalen
TW200703240A (en) Systems, methods, and apparatus for quantization of spectral envelope representation
DE60333316D1 (de) Verfahren zur Erzeugung von Toninformationen
DE69529672T2 (de) System zur sprachkodierung
DE69619054T2 (de) Verfahren und Vorrichtung zur Sprachkodierung
DE60324025D1 (de) Verfahren und vorrichtung zur robusten prädiktiven vektorquantisierung von parametern der linearen prädiktion in variabler bitraten-kodierung
RU2007144493A (ru) Поддиапазонный речевой кодекс с многокаскадными таблицами кодирования и избыточным кодированием
ATE450857T1 (de) Verfahren und vorrichtung zur kodierung von audiodaten basierend auf vektorquantisierung
RU2006139794A (ru) Поддержка переключения между режимами звукового кодера
DK1590801T3 (da) Konvertering af syntetiserede spektralkomponenter for kodning og transkodning med lav komplicerethed
WO2002093551A3 (en) Method and system for line spectral frequency vector quantization in speech codec
DK1328927T3 (da) Fremgangsmåde og system til estimering af kunstigt höjbåndssignal i tale-codec
ATE322068T1 (de) Verfahren und vorrichtung zur verschachtelung der quantisierungsverfahren der spektralen frequenzlinien in einem sprachkodierer
EP1313091A3 (de) Verfahren zur Analyse, Synthese und Quantisierung von Sprache
WO2014077591A1 (ko) 부호화 모드 결정방법 및 장치, 오디오 부호화방법 및 장치와, 오디오 복호화방법 및 장치
ATE506755T1 (de) Verbessertes verfahren zur verlustlosen datenkomprimierung mit der verwendung einer gierigen sequentiellen kontextabhängigen grammatiktransformation
JP5436576B2 (ja) 信号を符号化する方法および信号を復号する方法
ATE456127T1 (de) Celp sprachkodierer
ATE515019T1 (de) Verfahren und vorrichtung zur ausführung einer optimalizierten audiokodierung zwischen zwei langzeitvorhersagemodellen
DE69611607T2 (de) Quantisierung einer aufgeteilten vorhersagematrix mit spektralparametern zur wirksamen sprachkodierung
ATE322069T1 (de) Verfahren zur signalkodierung mittels einer vektorquantisierung
RU2010145536A (ru) Технологии прогнозирования для интерполяции при кодировании видео
DE69703233D1 (de) Verfahren und Systeme zur Sprachkodierung

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties