ATE520121T1 - Verbesserte celp kodierung oder dekodierung eines digitalen audiosignals - Google Patents

Verbesserte celp kodierung oder dekodierung eines digitalen audiosignals

Info

Publication number
ATE520121T1
ATE520121T1 AT07731605T AT07731605T ATE520121T1 AT E520121 T1 ATE520121 T1 AT E520121T1 AT 07731605 T AT07731605 T AT 07731605T AT 07731605 T AT07731605 T AT 07731605T AT E520121 T1 ATE520121 T1 AT E520121T1
Authority
AT
Austria
Prior art keywords
dictionaries
digital audio
decoding
audio signal
celp encoding
Prior art date
Application number
AT07731605T
Other languages
English (en)
Inventor
Dominique Massaloux
Romain Trilling
Claude Lamblin
Original Assignee
France Telecom
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 France Telecom filed Critical France Telecom
Application granted granted Critical
Publication of ATE520121T1 publication Critical patent/ATE520121T1/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
    • G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
    • 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
    • G10L2019/0007—Codebook element generation

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)
AT07731605T 2006-02-22 2007-02-13 Verbesserte celp kodierung oder dekodierung eines digitalen audiosignals ATE520121T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0601563 2006-02-22
PCT/FR2007/050780 WO2007096550A2 (fr) 2006-02-22 2007-02-13 Codage/decodage perfectionnes d'un signal audionumerique, en technique celp

Publications (1)

Publication Number Publication Date
ATE520121T1 true ATE520121T1 (de) 2011-08-15

Family

ID=37308852

Family Applications (1)

Application Number Title Priority Date Filing Date
AT07731605T ATE520121T1 (de) 2006-02-22 2007-02-13 Verbesserte celp kodierung oder dekodierung eines digitalen audiosignals

Country Status (7)

Country Link
US (1) US8271274B2 (de)
EP (1) EP1994531B1 (de)
JP (1) JP5188990B2 (de)
KR (1) KR101370017B1 (de)
CN (1) CN101401153B (de)
AT (1) ATE520121T1 (de)
WO (1) WO2007096550A2 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2466670B (en) * 2009-01-06 2012-11-14 Skype Speech encoding
GB2466673B (en) 2009-01-06 2012-11-07 Skype Quantization
GB2466674B (en) * 2009-01-06 2013-11-13 Skype Speech coding
GB2466675B (en) 2009-01-06 2013-03-06 Skype Speech coding
GB2466669B (en) * 2009-01-06 2013-03-06 Skype Speech coding
GB2466671B (en) * 2009-01-06 2013-03-27 Skype Speech encoding
US20100174539A1 (en) * 2009-01-06 2010-07-08 Qualcomm Incorporated Method and apparatus for vector quantization codebook search
GB2466672B (en) * 2009-01-06 2013-03-13 Skype Speech coding
US8452606B2 (en) * 2009-09-29 2013-05-28 Skype Speech encoding using multiple bit rates
WO2011052221A1 (ja) * 2009-10-30 2011-05-05 パナソニック株式会社 符号化装置、復号装置、およびそれらの方法
EP3364411B1 (de) 2009-12-14 2022-06-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vektorquantisierungsvorrichtung, sprachcodierungsvorrichtung, vektorquantisierungsverfahren und sprachcodierungsverfahren
US8924203B2 (en) * 2011-10-28 2014-12-30 Electronics And Telecommunications Research Institute Apparatus and method for coding signal in a communication system
CA2887009C (en) * 2012-10-05 2019-12-17 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. An apparatus for encoding a speech signal employing acelp in the autocorrelation domain
EP3961622B1 (de) 2013-05-24 2023-11-01 Dolby International AB Audiocodierer
US9418671B2 (en) * 2013-08-15 2016-08-16 Huawei Technologies Co., Ltd. Adaptive high-pass post-filter
CN105723456B (zh) * 2013-10-18 2019-12-13 弗朗霍夫应用科学研究促进协会 自适应编码及解码音频信号的编码器、解码器、编码和解码方法
EP3806094B1 (de) 2013-10-18 2025-08-06 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Konzept zur codierung eines audiosignals und zur decodierung eines audiosignals mit sprachbezogenen spektralformungsinformationen
PT3069338T (pt) 2013-11-13 2019-03-26 Fraunhofer Ges Forschung Codificador para codificar um sinal áudio, sistema de transmissão de áudio e método para determinar valores de correção
EP2980794A1 (de) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiocodierer und -decodierer mit einem Frequenzdomänenprozessor und Zeitdomänenprozessor
EP2980795A1 (de) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiokodierung und -decodierung mit Nutzung eines Frequenzdomänenprozessors, eines Zeitdomänenprozessors und eines Kreuzprozessors zur Initialisierung des Zeitdomänenprozessors
US10847170B2 (en) 2015-06-18 2020-11-24 Qualcomm Incorporated Device and method for generating a high-band signal from non-linearly processed sub-ranges

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI98104C (fi) * 1991-05-20 1997-04-10 Nokia Mobile Phones Ltd Menetelmä herätevektorin generoimiseksi ja digitaalinen puhekooderi
JPH10133697A (ja) * 1996-09-05 1998-05-22 Seiko Epson Corp 音声符号化方法およびその装置
CA2275266C (en) * 1997-10-22 2005-06-14 Matsushita Electric Industrial Co., Ltd. Speech coder and speech decoder
JP3175667B2 (ja) * 1997-10-28 2001-06-11 松下電器産業株式会社 ベクトル量子化法
JP3174756B2 (ja) * 1998-03-31 2001-06-11 松下電器産業株式会社 音源ベクトル生成装置及び音源ベクトル生成方法
JP3235543B2 (ja) * 1997-10-22 2001-12-04 松下電器産業株式会社 音声符号化／復号化装置
US6480822B2 (en) * 1998-08-24 2002-11-12 Conexant Systems, Inc. Low complexity random codebook structure
JP4173940B2 (ja) * 1999-03-05 2008-10-29 松下電器産業株式会社 音声符号化装置及び音声符号化方法
US6449313B1 (en) * 1999-04-28 2002-09-10 Lucent Technologies Inc. Shaped fixed codebook search for celp speech coding
US6236960B1 (en) * 1999-08-06 2001-05-22 Motorola, Inc. Factorial packing method and apparatus for information coding

Also Published As

Publication number Publication date
CN101401153B (zh) 2011-11-16
KR20080110757A (ko) 2008-12-19
WO2007096550A3 (fr) 2007-10-11
CN101401153A (zh) 2009-04-01
JP5188990B2 (ja) 2013-04-24
EP1994531A2 (de) 2008-11-26
JP2009527784A (ja) 2009-07-30
WO2007096550A2 (fr) 2007-08-30
US8271274B2 (en) 2012-09-18
US20090222273A1 (en) 2009-09-03
EP1994531B1 (de) 2011-08-10
KR101370017B1 (ko) 2014-03-05

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