DE69828119D1 - Quantisierung der linearen Prädiktionskoeffizienten - Google Patents

Quantisierung der linearen Prädiktionskoeffizienten

Info

Publication number
DE69828119D1
DE69828119D1 DE69828119T DE69828119T DE69828119D1 DE 69828119 D1 DE69828119 D1 DE 69828119D1 DE 69828119 T DE69828119 T DE 69828119T DE 69828119 T DE69828119 T DE 69828119T DE 69828119 D1 DE69828119 D1 DE 69828119D1
Authority
DE
Germany
Prior art keywords
quantization
linear prediction
prediction coefficients
coefficients
linear
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
DE69828119T
Other languages
English (en)
Inventor
Alan V Mccree
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.)
Texas Instruments Inc
Original Assignee
Texas Instruments Inc
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 Texas Instruments Inc filed Critical Texas Instruments Inc
Application granted granted Critical
Publication of DE69828119D1 publication Critical patent/DE69828119D1/de
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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G10L19/038—Vector quantisation, e.g. TwinVQ audio
    • 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
    • G10L19/07—Line spectrum pair [LSP] 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
    • G10L2019/0014—Selection criteria for distances

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)
DE69828119T 1997-08-28 1998-08-27 Quantisierung der linearen Prädiktionskoeffizienten Expired - Lifetime DE69828119D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5711497P 1997-08-28 1997-08-28

Publications (1)

Publication Number Publication Date
DE69828119D1 true DE69828119D1 (de) 2005-01-20

Family

ID=22008595

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69828119T Expired - Lifetime DE69828119D1 (de) 1997-08-28 1998-08-27 Quantisierung der linearen Prädiktionskoeffizienten

Country Status (3)

Country Link
EP (1) EP0899720B1 (de)
JP (1) JPH11143498A (de)
DE (1) DE69828119D1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW408298B (en) * 1997-08-28 2000-10-11 Texas Instruments Inc Improved method for switched-predictive quantization
KR100464310B1 (ko) * 1999-03-13 2004-12-31 삼성전자주식회사 선 스펙트럼 쌍을 이용한 패턴 정합 방법
KR100474969B1 (ko) * 2002-06-04 2005-03-10 에스엘투 주식회사 음성신호 부호화를 위한 선 스펙트럼 계수의 벡터 양자화방법과 이를 위한 마스킹 임계치 산출 방법
US7516066B2 (en) 2002-07-16 2009-04-07 Koninklijke Philips Electronics N.V. Audio coding
KR100647290B1 (ko) 2004-09-22 2006-11-23 삼성전자주식회사 합성된 음성의 특성을 이용하여 양자화/역양자화를선택하는 음성 부호화/복호화 장치 및 그 방법
JP5142727B2 (ja) 2005-12-27 2013-02-13 パナソニック株式会社 音声復号装置および音声復号方法
CN101320565B (zh) * 2007-06-08 2011-05-11 华为技术有限公司 感知加权滤波方法及感知加权滤波器
KR101747917B1 (ko) * 2010-10-18 2017-06-15 삼성전자주식회사 선형 예측 계수를 양자화하기 위한 저복잡도를 가지는 가중치 함수 결정 장치 및 방법
EP3621074B1 (de) * 2014-01-15 2023-07-12 Samsung Electronics Co., Ltd. Gewichtungsfunktionsbestimmungsvorrichtung und verfahren zur quantisierung linearer prädiktionscodierungskoeffizienten

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW408298B (en) * 1997-08-28 2000-10-11 Texas Instruments Inc Improved method for switched-predictive quantization

Also Published As

Publication number Publication date
EP0899720A2 (de) 1999-03-03
EP0899720A3 (de) 1999-09-15
EP0899720B1 (de) 2004-12-15
JPH11143498A (ja) 1999-05-28

Similar Documents

Publication Publication Date Title
DE69333288D1 (de) Verbesserte vektorquantisierung
DE19882069T1 (de) Voraussage logarithmischer Reduktionswerte
DE69721349D1 (de) Sprachkodierung
FR2722041B1 (fr) Decodeur de huffman
GB9711040D0 (en) Prediction of inflammatory disease
DE69735838D1 (de) Videokodierer mit Transformationskoeffizientenprädiktion
DE69801659D1 (de) Kodierungssysteme
DE69715660T2 (de) Videokodierung
DE69805228D1 (de) Videosignalkodierung mit adaptiver Quantisierung
DE59912768D1 (de) Piezoelektrischer aktor
FI20000449A (fi) Koodattujen puhesignaalien harvuuden vähentäminen
DK0827342T3 (da) Prediktiv kodning af billeder
DE69515997D1 (de) Transkodierer
DE19983670T1 (de) Vibratoranordnung
DE69702261T2 (de) Sprachkodierung
DE69828119D1 (de) Quantisierung der linearen Prädiktionskoeffizienten
DE69432038D1 (de) 4B6B-Kodierungsschema
DE29708881U1 (de) Imprägnierte Keramiksteigleitung
DE69514022D1 (de) Quantizierungsschaltung
DE69901545D1 (de) Signalkodierung
DE69418777D1 (de) Vektorquantisierer
DE69427726D1 (de) Quantisierungsgerät
DE29713980U1 (de) Mechanischer Codierer
KR950030644U (ko) 납골함 안치구조
KR970060124U (ko) 마이크로폰의 구조

Legal Events

Date Code Title Description
8332 No legal effect for de