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FR2742568B1 - Procede d'analyse par prediction lineaire d'un signal audiofrequence, et procedes de codage et de decodage d'un signal audiofrequence en comportant application - Google Patents

Procede d'analyse par prediction lineaire d'un signal audiofrequence, et procedes de codage et de decodage d'un signal audiofrequence en comportant application

Info

Publication number
FR2742568B1
FR2742568B1 FR9514925A FR9514925A FR2742568B1 FR 2742568 B1 FR2742568 B1 FR 2742568B1 FR 9514925 A FR9514925 A FR 9514925A FR 9514925 A FR9514925 A FR 9514925A FR 2742568 B1 FR2742568 B1 FR 2742568B1
Authority
FR
France
Prior art keywords
frequency signal
audio frequency
decoding
encoding
methods
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
Application number
FR9514925A
Other languages
English (en)
Other versions
FR2742568A1 (fr
Inventor
Catherine Quinquis
Guyader Alain Le
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR9514925A priority Critical patent/FR2742568B1/fr
Priority to US08/763,457 priority patent/US5787390A/en
Priority to DE69608947T priority patent/DE69608947T2/de
Priority to EP96402715A priority patent/EP0782128B1/fr
Priority to CN96121556A priority patent/CN1159691A/zh
Priority to KR1019960065696A priority patent/KR100421226B1/ko
Priority to JP33614096A priority patent/JP3678519B2/ja
Publication of FR2742568A1 publication Critical patent/FR2742568A1/fr
Application granted granted Critical
Publication of FR2742568B1 publication Critical patent/FR2742568B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
FR9514925A 1995-12-15 1995-12-15 Procede d'analyse par prediction lineaire d'un signal audiofrequence, et procedes de codage et de decodage d'un signal audiofrequence en comportant application Expired - Lifetime FR2742568B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR9514925A FR2742568B1 (fr) 1995-12-15 1995-12-15 Procede d'analyse par prediction lineaire d'un signal audiofrequence, et procedes de codage et de decodage d'un signal audiofrequence en comportant application
US08/763,457 US5787390A (en) 1995-12-15 1996-12-11 Method for linear predictive analysis of an audiofrequency signal, and method for coding and decoding an audiofrequency signal including application thereof
EP96402715A EP0782128B1 (fr) 1995-12-15 1996-12-12 Procédé d'analyse par prédiction linéaire d'un signal audiofréquence, et procédés de codage et de décodage d'un signal audiofréquence en comportant application
DE69608947T DE69608947T2 (de) 1995-12-15 1996-12-12 Verfahren zur Analyse eines Audiofrequenzsignals durch lineare Prädiktion, und Anwendung auf ein Verfahren zur Kodierung und Dekodierung eines Audiofrequenzsignals
CN96121556A CN1159691A (zh) 1995-12-15 1996-12-13 用于声频信号线性预测分析的方法
KR1019960065696A KR100421226B1 (ko) 1995-12-15 1996-12-14 음성 주파수 신호의 선형예측 분석 코딩 및 디코딩방법과 그 응용
JP33614096A JP3678519B2 (ja) 1995-12-15 1996-12-16 オーディオ周波数信号の線形予測解析方法およびその応用を含むオーディオ周波数信号のコーディングならびにデコーディングの方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9514925A FR2742568B1 (fr) 1995-12-15 1995-12-15 Procede d'analyse par prediction lineaire d'un signal audiofrequence, et procedes de codage et de decodage d'un signal audiofrequence en comportant application

Publications (2)

Publication Number Publication Date
FR2742568A1 FR2742568A1 (fr) 1997-06-20
FR2742568B1 true FR2742568B1 (fr) 1998-02-13

Family

ID=9485565

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9514925A Expired - Lifetime FR2742568B1 (fr) 1995-12-15 1995-12-15 Procede d'analyse par prediction lineaire d'un signal audiofrequence, et procedes de codage et de decodage d'un signal audiofrequence en comportant application

Country Status (7)

Country Link
US (1) US5787390A (fr)
EP (1) EP0782128B1 (fr)
JP (1) JP3678519B2 (fr)
KR (1) KR100421226B1 (fr)
CN (1) CN1159691A (fr)
DE (1) DE69608947T2 (fr)
FR (1) FR2742568B1 (fr)

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US6934677B2 (en) 2001-12-14 2005-08-23 Microsoft Corporation Quantization matrices based on critical band pattern information for digital audio wherein quantization bands differ from critical bands
US7240001B2 (en) * 2001-12-14 2007-07-03 Microsoft Corporation Quality improvement techniques in an audio encoder
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EP1383109A1 (fr) * 2002-07-17 2004-01-21 STMicroelectronics N.V. Procédé et dispositif d'encodage de la parole à bande élargie
JP4676140B2 (ja) 2002-09-04 2011-04-27 マイクロソフト コーポレーション オーディオの量子化および逆量子化
US7502743B2 (en) * 2002-09-04 2009-03-10 Microsoft Corporation Multi-channel audio encoding and decoding with multi-channel transform selection
US7299190B2 (en) * 2002-09-04 2007-11-20 Microsoft Corporation Quantization and inverse quantization for audio
US7254533B1 (en) * 2002-10-17 2007-08-07 Dilithium Networks Pty Ltd. Method and apparatus for a thin CELP voice codec
US20040260540A1 (en) * 2003-06-20 2004-12-23 Tong Zhang System and method for spectrogram analysis of an audio signal
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US8330745B2 (en) 2007-01-25 2012-12-11 Sharp Kabushiki Kaisha Pulse output circuit, and display device, drive circuit, display device, and pulse output method using same circuit
US8428957B2 (en) 2007-08-24 2013-04-23 Qualcomm Incorporated Spectral noise shaping in audio coding based on spectral dynamics in frequency sub-bands
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US8160287B2 (en) 2009-05-22 2012-04-17 Vocollect, Inc. Headset with adjustable headband
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KR101257776B1 (ko) * 2011-10-06 2013-04-24 단국대학교 산학협력단 상태-체크 코드를 이용한 부호화 방법 및 부호화 장치
CN102638846B (zh) * 2012-03-28 2015-08-19 浙江大学 一种基于最优量化策略的wsn通信负载降低方法
EP3098813B1 (fr) * 2014-01-24 2018-12-12 Nippon Telegraph And Telephone Corporation Dispositif, procédé et programme d'analyse par prédiction linéaire et support d'enregistrement
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Also Published As

Publication number Publication date
EP0782128B1 (fr) 2000-06-21
FR2742568A1 (fr) 1997-06-20
DE69608947D1 (de) 2000-07-27
JPH09212199A (ja) 1997-08-15
EP0782128A1 (fr) 1997-07-02
JP3678519B2 (ja) 2005-08-03
KR100421226B1 (ko) 2004-07-19
CN1159691A (zh) 1997-09-17
KR970050107A (ko) 1997-07-29
DE69608947T2 (de) 2001-02-01
US5787390A (en) 1998-07-28

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