DE69619054T2 - Verfahren und Vorrichtung zur Sprachkodierung - Google Patents

Verfahren und Vorrichtung zur Sprachkodierung

Info

Publication number
DE69619054T2
DE69619054T2 DE69619054T DE69619054T DE69619054T2 DE 69619054 T2 DE69619054 T2 DE 69619054T2 DE 69619054 T DE69619054 T DE 69619054T DE 69619054 T DE69619054 T DE 69619054T DE 69619054 T2 DE69619054 T2 DE 69619054T2
Authority
DE
Germany
Prior art keywords
encoding
encoding apparatus
codebook
clipping
unit
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
DE69619054T
Other languages
English (en)
Other versions
DE69619054D1 (de
Inventor
Kazuyuki Iijima
Masayuki Nishiguchi
Jun Matsumoto
Shiro Omori
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of DE69619054D1 publication Critical patent/DE69619054D1/de
Application granted granted Critical
Publication of DE69619054T2 publication Critical patent/DE69619054T2/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
    • G10L19/04—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
    • 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
    • G10L19/08—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
    • G10L2019/0004—Design or structure of the codebook
    • 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)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
DE69619054T 1995-10-26 1996-10-25 Verfahren und Vorrichtung zur Sprachkodierung Expired - Lifetime DE69619054T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27941795A JP3680380B2 (ja) 1995-10-26 1995-10-26 音声符号化方法及び装置

Publications (2)

Publication Number Publication Date
DE69619054D1 DE69619054D1 (de) 2002-03-21
DE69619054T2 true DE69619054T2 (de) 2002-08-29

Family

ID=17610804

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69619054T Expired - Lifetime DE69619054T2 (de) 1995-10-26 1996-10-25 Verfahren und Vorrichtung zur Sprachkodierung

Country Status (8)

Country Link
US (1) US5828996A (de)
EP (1) EP0770989B1 (de)
JP (1) JP3680380B2 (de)
KR (1) KR100427752B1 (de)
CN (1) CN1156872A (de)
AT (1) ATE213086T1 (de)
DE (1) DE69619054T2 (de)
SG (1) SG43428A1 (de)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2729247A1 (fr) * 1995-01-06 1996-07-12 Matra Communication Procede de codage de parole a analyse par synthese
FR2729246A1 (fr) * 1995-01-06 1996-07-12 Matra Communication Procede de codage de parole a analyse par synthese
JP4040126B2 (ja) * 1996-09-20 2008-01-30 ソニー株式会社 音声復号化方法および装置
JP3849210B2 (ja) * 1996-09-24 2006-11-22 ヤマハ株式会社 音声符号化復号方式
JP3707153B2 (ja) 1996-09-24 2005-10-19 ソニー株式会社 ベクトル量子化方法、音声符号化方法及び装置
JPH10105195A (ja) * 1996-09-27 1998-04-24 Sony Corp ピッチ検出方法、音声信号符号化方法および装置
US6064954A (en) * 1997-04-03 2000-05-16 International Business Machines Corp. Digital audio signal coding
KR100568889B1 (ko) * 1997-07-11 2006-04-10 코닌클리케 필립스 일렉트로닉스 엔.브이. 개선된 스피치 인코더 및 디코더를 갖는 송신기
JP3235526B2 (ja) * 1997-08-08 2001-12-04 日本電気株式会社 音声圧縮伸長方法及びその装置
TW408298B (en) * 1997-08-28 2000-10-11 Texas Instruments Inc Improved method for switched-predictive quantization
DE69840855D1 (de) * 1997-10-22 2009-07-09 Panasonic Corp Anregungsvektorerzeugung für die Sprachkodierung und -dekodierung
CA2636552C (en) * 1997-12-24 2011-03-01 Mitsubishi Denki Kabushiki Kaisha A method for speech coding, method for speech decoding and their apparatuses
US6954727B1 (en) * 1999-05-28 2005-10-11 Koninklijke Philips Electronics N.V. Reducing artifact generation in a vocoder
JP4218134B2 (ja) * 1999-06-17 2009-02-04 ソニー株式会社 復号装置及び方法、並びにプログラム提供媒体
US6393394B1 (en) * 1999-07-19 2002-05-21 Qualcomm Incorporated Method and apparatus for interleaving line spectral information quantization methods in a speech coder
US7010482B2 (en) * 2000-03-17 2006-03-07 The Regents Of The University Of California REW parametric vector quantization and dual-predictive SEW vector quantization for waveform interpolative coding
US6901362B1 (en) 2000-04-19 2005-05-31 Microsoft Corporation Audio segmentation and classification
US7386444B2 (en) * 2000-09-22 2008-06-10 Texas Instruments Incorporated Hybrid speech coding and system
US7171355B1 (en) * 2000-10-25 2007-01-30 Broadcom Corporation Method and apparatus for one-stage and two-stage noise feedback coding of speech and audio signals
JP3404016B2 (ja) * 2000-12-26 2003-05-06 三菱電機株式会社 音声符号化装置及び音声符号化方法
US7110942B2 (en) * 2001-08-14 2006-09-19 Broadcom Corporation Efficient excitation quantization in a noise feedback coding system using correlation techniques
US7512535B2 (en) * 2001-10-03 2009-03-31 Broadcom Corporation Adaptive postfiltering methods and systems for decoding speech
US7206740B2 (en) * 2002-01-04 2007-04-17 Broadcom Corporation Efficient excitation quantization in noise feedback coding with general noise shaping
KR100492965B1 (ko) * 2002-09-27 2005-06-07 삼성전자주식회사 벡터 양자화를 위한 고속 탐색방법
US8473286B2 (en) * 2004-02-26 2013-06-25 Broadcom Corporation Noise feedback coding system and method for providing generalized noise shaping within a simple filter structure
JP4529492B2 (ja) * 2004-03-11 2010-08-25 株式会社デンソー 音声抽出方法、音声抽出装置、音声認識装置、及び、プログラム
US8335684B2 (en) * 2006-07-12 2012-12-18 Broadcom Corporation Interchangeable noise feedback coding and code excited linear prediction encoders
JP4827661B2 (ja) * 2006-08-30 2011-11-30 富士通株式会社 信号処理方法及び装置
US8532983B2 (en) * 2008-09-06 2013-09-10 Huawei Technologies Co., Ltd. Adaptive frequency prediction for encoding or decoding an audio signal
US8407046B2 (en) * 2008-09-06 2013-03-26 Huawei Technologies Co., Ltd. Noise-feedback for spectral envelope quantization
US8532998B2 (en) * 2008-09-06 2013-09-10 Huawei Technologies Co., Ltd. Selective bandwidth extension for encoding/decoding audio/speech signal
WO2010028301A1 (en) * 2008-09-06 2010-03-11 GH Innovation, Inc. Spectrum harmonic/noise sharpness control
US8577673B2 (en) * 2008-09-15 2013-11-05 Huawei Technologies Co., Ltd. CELP post-processing for music signals
WO2010031003A1 (en) * 2008-09-15 2010-03-18 Huawei Technologies Co., Ltd. Adding second enhancement layer to celp based core layer
JP6844472B2 (ja) * 2017-08-24 2021-03-17 トヨタ自動車株式会社 情報処理装置
CN111341330B (zh) * 2020-02-10 2023-07-25 科大讯飞股份有限公司 音频编解码方法、存取方法及其相关设备及存储装置

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4052568A (en) * 1976-04-23 1977-10-04 Communications Satellite Corporation Digital voice switch
US4545065A (en) * 1982-04-28 1985-10-01 Xsi General Partnership Extrema coding signal processing method and apparatus
US4802221A (en) * 1986-07-21 1989-01-31 Ncr Corporation Digital system and method for compressing speech signals for storage and transmission
US4969192A (en) * 1987-04-06 1990-11-06 Voicecraft, Inc. Vector adaptive predictive coder for speech and audio
US5261027A (en) * 1989-06-28 1993-11-09 Fujitsu Limited Code excited linear prediction speech coding system
US5263119A (en) * 1989-06-29 1993-11-16 Fujitsu Limited Gain-shape vector quantization method and apparatus
JPH0365822A (ja) * 1989-08-04 1991-03-20 Fujitsu Ltd ベクトル量子化符号器及びベクトル量子化復号器
CA2027705C (en) * 1989-10-17 1994-02-15 Masami Akamine Speech coding system utilizing a recursive computation technique for improvement in processing speed
US5307441A (en) * 1989-11-29 1994-04-26 Comsat Corporation Wear-toll quality 4.8 kbps speech codec
JPH0418800A (ja) * 1990-05-14 1992-01-22 Hitachi Ltd 集積回路の３次元実装方法
DE69129329T2 (de) * 1990-09-14 1998-09-24 Fujitsu Ltd Sprachkodierungsystem
JPH0782355B2 (ja) * 1991-02-22 1995-09-06 株式会社エイ・ティ・アール自動翻訳電話研究所 雑音除去と話者適応の機能を有する音声認識装置
US5271088A (en) * 1991-05-13 1993-12-14 Itt Corporation Automated sorting of voice messages through speaker spotting
JP2613503B2 (ja) * 1991-07-08 1997-05-28 日本電信電話株式会社 音声の励振信号符号化・復号化方法
JPH06138896A (ja) * 1991-05-31 1994-05-20 Motorola Inc 音声フレームを符号化するための装置および方法
SG70558A1 (en) * 1991-06-11 2000-02-22 Qualcomm Inc Variable rate vocoder
JP3129778B2 (ja) * 1991-08-30 2001-01-31 富士通株式会社 ベクトル量子化器
US5233660A (en) * 1991-09-10 1993-08-03 At&T Bell Laboratories Method and apparatus for low-delay celp speech coding and decoding
JP3212123B2 (ja) * 1992-03-31 2001-09-25 株式会社東芝 音声符号化装置
JP3278900B2 (ja) * 1992-05-07 2002-04-30 ソニー株式会社 データ符号化装置及び方法
FI95085C (fi) * 1992-05-11 1995-12-11 Nokia Mobile Phones Ltd Menetelmä puhesignaalin digitaaliseksi koodaamiseksi sekä puhekooderi menetelmän suorittamiseksi
US5495555A (en) * 1992-06-01 1996-02-27 Hughes Aircraft Company High quality low bit rate celp-based speech codec
IT1257065B (it) * 1992-07-31 1996-01-05 Sip Codificatore a basso ritardo per segnali audio, utilizzante tecniche di analisi per sintesi.
EP0624965A3 (de) * 1993-03-23 1996-01-31 Us West Advanced Tech Inc Methode und System zum Recherchieren in einem on-line Telephonbuch in einer Telephonstation.
SG47025A1 (en) * 1993-03-26 1998-03-20 Motorola Inc Vector quantizer method and apparatus
US5533133A (en) * 1993-03-26 1996-07-02 Hughes Aircraft Company Noise suppression in digital voice communications systems
US5491771A (en) * 1993-03-26 1996-02-13 Hughes Aircraft Company Real-time implementation of a 8Kbps CELP coder on a DSP pair
JP3265726B2 (ja) * 1993-07-22 2002-03-18 松下電器産業株式会社 可変レート音声符号化装置
US5651090A (en) * 1994-05-06 1997-07-22 Nippon Telegraph And Telephone Corporation Coding method and coder for coding input signals of plural channels using vector quantization, and decoding method and decoder therefor

Also Published As

Publication number Publication date
EP0770989A2 (de) 1997-05-02
US5828996A (en) 1998-10-27
DE69619054D1 (de) 2002-03-21
EP0770989B1 (de) 2002-02-06
ATE213086T1 (de) 2002-02-15
KR970024627A (ko) 1997-05-30
CN1156872A (zh) 1997-08-13
SG43428A1 (en) 1997-10-17
EP0770989A3 (de) 1998-10-21
JPH09127990A (ja) 1997-05-16
JP3680380B2 (ja) 2005-08-10
KR100427752B1 (ko) 2004-07-19

Similar Documents

Publication Publication Date Title
DE69619054D1 (de) Verfahren und Vorrichtung zur Sprachkodierung
DE69708697D1 (de) Verfahren zur Erzeugung eines Vektorquantisierungs-codebuchs, und Vorrichtung und Verfahren zur Sprachcodierung/-decodierung
EP1596368A3 (de) Verfahren und Vorrichtung zur Dekodierung von Sprachsignalen
MX9605122A (es) Metodo y aparato de codificacion de voz y metodo y aparato de descodificacion de voz.
KR970701410A (ko) 음성 부호화 방법(Sound Encoding System)
DE69807807D1 (de) Verfahren und vorrichtung zur übertragung von inhaltsinformation und darauf bezogener zusatzinformation
EP1752968A3 (de) Sprachkodiergerät und Sprachdekodiergerät
DE69625880D1 (de) Verfahren und Vorrichtung zur Sprachkodierung
ATE470932T1 (de) Verfahren und vorrichtung zur sprachkodierung mit reduzierter, variabler bit-rate
ATE205011T1 (de) Verfahren und einrichtung zur wiedergabe von sprachsignalen und verfahren zu seiner übertragung
ATE420432T1 (de) Verfahren und vorrichtung zur prädiktiven quantisierung von stimmhaften sprachsignalen
DE69609099D1 (de) Verfahren zur Modifikation von LPC-Koeffizienten von akustischen Signalen
DE69729527D1 (de) Verfahren und Vorrichtung zur Kodierung von Sprachsignalen
DE69013738T2 (de) Einrichtung zur Sprachcodierung.
DE69328064D1 (de) Zeit-Frequenzinterpolation mit Anwendung zur Sprachkodierung mit niedriger Rate
DE69126062D1 (de) System zur Sprachcodierung und -decodierung
KR970072718A (ko) 유성음/무성음을 판정하기 위한 방법과 장치 그리고 음성을 부호화하기 위한 방법
DE69611607D1 (de) Quantisierung einer aufgeteilten vorhersagematrix mit spektralparametern zur wirksamen sprachkodierung
DE600504T1 (de) Verfahren und Vorrichtung für Sprachkodierer auf der Basis von Analyse-durch-Synthesetechniken.
DE69703233T2 (de) Verfahren und Systeme zur Sprachkodierung
DE69014156T2 (de) Verfahren und Einrichtung zur Sprachcodierung.
DE69624207D1 (de) Sprachkodierer mit Vorrichtung zur Abschätzung der Abweichung des Leistungsverlaufs eines synthetischen Signals von einem Eingangssignal
DE69424960T2 (de) Verfahren und Vorrichtung zur Sprachkodierung mit Trellis-kodierter Quantisierung für LPC- Quantisierung

Legal Events

Date Code Title Description
8364 No opposition during term of opposition