ATE456127T1 - Celp sprachkodierer - Google Patents

Celp sprachkodierer

Info

Publication number
ATE456127T1
ATE456127T1 AT99949404T AT99949404T ATE456127T1 AT E456127 T1 ATE456127 T1 AT E456127T1 AT 99949404 T AT99949404 T AT 99949404T AT 99949404 T AT99949404 T AT 99949404T AT E456127 T1 ATE456127 T1 AT E456127T1
Authority
AT
Austria
Prior art keywords
pitch
quantization
differential value
subframe
voice encoder
Prior art date
Application number
AT99949404T
Other languages
English (en)
Inventor
Hiroyuki Ehara
Original Assignee
Panasonic Corp
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 Panasonic Corp filed Critical Panasonic Corp
Application granted granted Critical
Publication of ATE456127T1 publication Critical patent/ATE456127T1/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Peptides Or Proteins (AREA)
AT99949404T 1998-10-27 1999-10-26 Celp sprachkodierer ATE456127T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP30574098A JP3343082B2 (ja) 1998-10-27 1998-10-27 Ｃｅｌｐ型音声符号化装置
PCT/JP1999/005885 WO2000025302A1 (en) 1998-10-27 1999-10-26 Celp voice encoder

Publications (1)

Publication Number Publication Date
ATE456127T1 true ATE456127T1 (de) 2010-02-15

Family

ID=17948780

Family Applications (1)

Application Number Title Priority Date Filing Date
AT99949404T ATE456127T1 (de) 1998-10-27 1999-10-26 Celp sprachkodierer

Country Status (8)

Country Link
US (1) US6804639B1 (de)
EP (1) EP1041541B1 (de)
JP (1) JP3343082B2 (de)
CN (1) CN1139912C (de)
AT (1) ATE456127T1 (de)
AU (1) AU6230199A (de)
DE (1) DE69941947D1 (de)
WO (1) WO2000025302A1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6240386B1 (en) * 1998-08-24 2001-05-29 Conexant Systems, Inc. Speech codec employing noise classification for noise compensation
US6782360B1 (en) * 1999-09-22 2004-08-24 Mindspeed Technologies, Inc. Gain quantization for a CELP speech coder
KR100463417B1 (ko) * 2002-10-10 2004-12-23 한국전자통신연구원 상관함수의 최대값과 그의 후보값의 비를 이용한 피치검출 방법 및 그 장치
TWI225637B (en) * 2003-06-09 2004-12-21 Ali Corp Method for calculation a pitch period estimation of speech signals with variable step size
EP1513137A1 (de) * 2003-08-22 2005-03-09 MicronasNIT LCC, Novi Sad Institute of Information Technologies Sprachverarbeitungssystem und -verfahren mit Multipuls-Anregung
JP4789430B2 (ja) * 2004-06-25 2011-10-12 パナソニック株式会社 音声符号化装置、音声復号化装置、およびこれらの方法
DE102005000828A1 (de) * 2005-01-05 2006-07-13 Siemens Ag Verfahren zum Codieren eines analogen Signals
JP5174651B2 (ja) * 2005-03-09 2013-04-03 テレフオンアクチーボラゲット エル エム エリクソン（パブル） 低演算量符号励振線形予測符号化
CN101395661B (zh) * 2006-03-07 2013-02-06 艾利森电话股份有限公司 音频编码和解码的方法和设备
US7752038B2 (en) * 2006-10-13 2010-07-06 Nokia Corporation Pitch lag estimation
CN101548317B (zh) * 2006-12-15 2012-01-18 松下电器产业株式会社 自适应激励矢量量化装置和自适应激励矢量量化方法
NO2313887T3 (de) 2008-07-10 2018-02-10
US9123328B2 (en) * 2012-09-26 2015-09-01 Google Technology Holdings LLC Apparatus and method for audio frame loss recovery
CN103137135B (zh) * 2013-01-22 2015-05-06 深圳广晟信源技术有限公司 Lpc系数量化方法和装置及多编码核音频编码方法和设备
US10878831B2 (en) * 2017-01-12 2020-12-29 Qualcomm Incorporated Characteristic-based speech codebook selection
CN112151045B (zh) * 2019-06-29 2024-06-04 华为技术有限公司 一种立体声编码方法、立体声解码方法和装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4696038A (en) * 1983-04-13 1987-09-22 Texas Instruments Incorporated Voice messaging system with unified pitch and voice tracking
CA2483324C (en) * 1991-06-11 2008-05-06 Qualcomm Incorporated Estimation of background noise in a variable rate vocoder
JP2800599B2 (ja) * 1992-10-15 1998-09-21 日本電気株式会社 基本周期符号化装置
JP2658816B2 (ja) * 1993-08-26 1997-09-30 日本電気株式会社 音声のピッチ符号化装置
JPH0830299A (ja) * 1994-07-19 1996-02-02 Nec Corp 音声符号化装置
US5664055A (en) * 1995-06-07 1997-09-02 Lucent Technologies Inc. CS-ACELP speech compression system with adaptive pitch prediction filter gain based on a measure of periodicity
US5778335A (en) * 1996-02-26 1998-07-07 The Regents Of The University Of California Method and apparatus for efficient multiband celp wideband speech and music coding and decoding
KR100339168B1 (ko) * 1996-11-07 2002-06-03 모리시타 요이찌 음원 벡터 생성 장치, 음성 부호화 장치 및 음성 복호화장치
US6188980B1 (en) * 1998-08-24 2001-02-13 Conexant Systems, Inc. Synchronized encoder-decoder frame concealment using speech coding parameters including line spectral frequencies and filter coefficients
US6493665B1 (en) * 1998-08-24 2002-12-10 Conexant Systems, Inc. Speech classification and parameter weighting used in codebook search

Also Published As

Publication number Publication date
WO2000025302A1 (en) 2000-05-04
DE69941947D1 (de) 2010-03-11
EP1041541A4 (de) 2005-07-20
JP2000132197A (ja) 2000-05-12
CN1287658A (zh) 2001-03-14
EP1041541B1 (de) 2010-01-20
JP3343082B2 (ja) 2002-11-11
CN1139912C (zh) 2004-02-25
EP1041541A1 (de) 2000-10-04
AU6230199A (en) 2000-05-15
US6804639B1 (en) 2004-10-12

Similar Documents

Publication Publication Date Title
ATE456127T1 (de) Celp sprachkodierer
BR9506841A (pt) Processo de coidificação de voz
US6345248B1 (en) Low bit-rate speech coder using adaptive open-loop subframe pitch lag estimation and vector quantization
AU1837888A (en) Code excited linear predictive vocoder and method of operation
CA2666546A1 (en) Method and device for coding transition frames in speech signals
DE60123999D1 (de) Gewinn-faktoren quantisierung für einen celp- sprachkodierer
EP0770990A3 (de) Verfahren und Vorrichtung zur Sprachkodierung und -dekodierung
FI934424A0 (fi) Tid-frekvens -interpolering med tillaempning pao laoghastighets talkodning
AU1838488A (en) Code excited linear predictive vocoder and method of operation
MY143176A (en) Method and device for gain quantization in variable bit rate wideband speech coding
DE602007003520D1 (de) Verfahren und Vorrichtung zur Kodierung von Audiodaten basierend auf Vektorquantisierung
DE60133757D1 (de) Verfahren und vorrichtung zur kodierung von stimmloser sprache
JPH0990995A (ja) 音声符号化装置
DE69223335D1 (de) Sprachkodiersystem
DE69126062D1 (de) System zur Sprachcodierung und -decodierung
FI935423A0 (fi) Foerfarande samt anordning foer kvantisering av excitationsfoerstaerkning i talkodare, som baserade pao syntesanalysteknik
DE69703233D1 (de) Verfahren und Systeme zur Sprachkodierung
KR920702787A (ko) 음성 샘플 및 신호 샘플 엔코딩 방법
DE68915057D1 (de) Kodierungsverfahren und linearer Prädiktionssprachkodierer.
CA2246901A1 (en) A method for improving performance of a voice coder
KR970031381A (ko) 코드 여기 선형 예측 부호화의 잡음 코드북 작성 방법
ATE555471T1 (de) Injektions-hochfrequenzrauschen in impulserregung für celp mit niedriger bitrate
Tanaka et al. The influence of speech coders for IP telephone on speech recognition
KR970013777A (ko) 선형예측 부호화방법의 잡음코드북 작성방법
JPH0683393A (ja) 音声符号化装置

Legal Events

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