DE69603755D1 - Sprachkodierung mittels Analyse durch Synthese - Google Patents

Sprachkodierung mittels Analyse durch Synthese

Info

Publication number
DE69603755D1
DE69603755D1 DE69603755T DE69603755T DE69603755D1 DE 69603755 D1 DE69603755 D1 DE 69603755D1 DE 69603755 T DE69603755 T DE 69603755T DE 69603755 T DE69603755 T DE 69603755T DE 69603755 D1 DE69603755 D1 DE 69603755D1
Authority
DE
Germany
Prior art keywords
subframe
pulses
short
speech
divided
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 - Fee Related
Application number
DE69603755T
Other languages
English (en)
Other versions
DE69603755T2 (de
Inventor
William Navarro
Michel Mauc
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.)
Nortel Networks France SAS
Original Assignee
Matra Nortel Communications SAS
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 Matra Nortel Communications SAS filed Critical Matra Nortel Communications SAS
Application granted granted Critical
Publication of DE69603755D1 publication Critical patent/DE69603755D1/de
Publication of DE69603755T2 publication Critical patent/DE69603755T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
DE69603755T 1995-01-06 1996-01-05 Sprachkodierung mittels Analyse durch Synthese Expired - Fee Related DE69603755T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9500124A FR2729244B1 (fr) 1995-01-06 1995-01-06 Procede de codage de parole a analyse par synthese

Publications (2)

Publication Number Publication Date
DE69603755D1 true DE69603755D1 (de) 1999-09-23
DE69603755T2 DE69603755T2 (de) 2000-07-06

Family

ID=9474923

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69601068T Expired - Fee Related DE69601068T2 (de) 1995-01-06 1996-01-03 Verfahren zur sprachkodierung mittels analyse durch synthese
DE69603755T Expired - Fee Related DE69603755T2 (de) 1995-01-06 1996-01-05 Sprachkodierung mittels Analyse durch Synthese

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69601068T Expired - Fee Related DE69601068T2 (de) 1995-01-06 1996-01-03 Verfahren zur sprachkodierung mittels analyse durch synthese

Country Status (8)

Country Link
US (1) US5899968A (de)
EP (2) EP0801789B1 (de)
CN (1) CN1134761C (de)
AT (2) ATE174147T1 (de)
AU (1) AU4490296A (de)
DE (2) DE69601068T2 (de)
FR (1) FR2729244B1 (de)
WO (1) WO1996021219A1 (de)

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FI955266A (fi) * 1995-11-02 1997-05-03 Nokia Telecommunications Oy Menetelmä ja laitteisto viestien välittämiseksi tietoliikennejärjestelmässä
JP3134817B2 (ja) * 1997-07-11 2001-02-13 日本電気株式会社 音声符号化復号装置
KR100510399B1 (ko) * 1998-02-17 2005-08-30 모토로라 인코포레이티드 고정 코드북내의 최적 벡터의 고속 결정 방법 및 장치
US6810377B1 (en) * 1998-06-19 2004-10-26 Comsat Corporation Lost frame recovery techniques for parametric, LPC-based speech coding systems
US6453289B1 (en) 1998-07-24 2002-09-17 Hughes Electronics Corporation Method of noise reduction for speech codecs
US6823303B1 (en) * 1998-08-24 2004-11-23 Conexant Systems, Inc. Speech encoder using voice activity detection in coding noise
US6480822B2 (en) * 1998-08-24 2002-11-12 Conexant Systems, Inc. Low complexity random codebook structure
US6493665B1 (en) * 1998-08-24 2002-12-10 Conexant Systems, Inc. Speech classification and parameter weighting used in codebook search
US6192335B1 (en) * 1998-09-01 2001-02-20 Telefonaktieboiaget Lm Ericsson (Publ) Adaptive combining of multi-mode coding for voiced speech and noise-like signals
JP3372908B2 (ja) * 1999-09-17 2003-02-04 エヌイーシーマイクロシステム株式会社 マルチパルス探索処理方法と音声符号化装置
JP4367808B2 (ja) * 1999-12-03 2009-11-18 富士通株式会社 音声データ圧縮・解凍装置及び方法
US6850884B2 (en) * 2000-09-15 2005-02-01 Mindspeed Technologies, Inc. Selection of coding parameters based on spectral content of a speech signal
US6842733B1 (en) 2000-09-15 2005-01-11 Mindspeed Technologies, Inc. Signal processing system for filtering spectral content of a signal for speech coding
US7047188B2 (en) * 2002-11-08 2006-05-16 Motorola, Inc. Method and apparatus for improvement coding of the subframe gain in a speech coding system
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
US9626982B2 (en) * 2011-02-15 2017-04-18 Voiceage Corporation Device and method for quantizing the gains of the adaptive and fixed contributions of the excitation in a CELP codec
JP6178305B2 (ja) 2011-04-21 2017-08-09 サムスン エレクトロニクス カンパニー リミテッド 量子化方法
AU2012246798B2 (en) 2011-04-21 2016-11-17 Samsung Electronics Co., Ltd Apparatus for quantizing linear predictive coding coefficients, sound encoding apparatus, apparatus for de-quantizing linear predictive coding coefficients, sound decoding apparatus, and electronic device therefor
US9208134B2 (en) * 2012-01-10 2015-12-08 King Abdulaziz City For Science And Technology Methods and systems for tokenizing multilingual textual documents

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NL8302985A (nl) * 1983-08-26 1985-03-18 Philips Nv Multipulse excitatie lineair predictieve spraakcodeerder.
CA1223365A (en) * 1984-02-02 1987-06-23 Shigeru Ono Method and apparatus for speech coding
NL8500843A (nl) * 1985-03-22 1986-10-16 Koninkl Philips Electronics Nv Multipuls-excitatie lineair-predictieve spraakcoder.
US4831624A (en) * 1987-06-04 1989-05-16 Motorola, Inc. Error detection method for sub-band coding
US4802171A (en) * 1987-06-04 1989-01-31 Motorola, Inc. Method for error correction in digitally encoded speech
CA1337217C (en) * 1987-08-28 1995-10-03 Daniel Kenneth Freeman Speech coding
DE3879664D1 (de) * 1988-01-05 1993-04-29 British Telecomm Sprachkodierung.
SE463691B (sv) * 1989-05-11 1991-01-07 Ericsson Telefon Ab L M Foerfarande att utplacera excitationspulser foer en lineaerprediktiv kodare (lpc) som arbetar enligt multipulsprincipen
US5060269A (en) * 1989-05-18 1991-10-22 General Electric Company Hybrid switched multi-pulse/stochastic speech coding technique
US5097508A (en) * 1989-08-31 1992-03-17 Codex Corporation Digital speech coder having improved long term lag parameter determination
SG47028A1 (en) * 1989-09-01 1998-03-20 Motorola Inc Digital speech coder having improved sub-sample resolution long-term predictor
AU635342B2 (en) * 1989-10-17 1993-03-18 Motorola, Inc. Digital speech decoder having a postfilter with reduced spectral distortion
US5073940A (en) * 1989-11-24 1991-12-17 General Electric Company Method for protecting multi-pulse coders from fading and random pattern bit errors
US5097507A (en) * 1989-12-22 1992-03-17 General Electric Company Fading bit error protection for digital cellular multi-pulse speech coder
US5265219A (en) * 1990-06-07 1993-11-23 Motorola, Inc. Speech encoder using a soft interpolation decision for spectral parameters
FI98104C (fi) * 1991-05-20 1997-04-10 Nokia Mobile Phones Ltd Menetelmä herätevektorin generoimiseksi ja digitaalinen puhekooderi
US5253269A (en) * 1991-09-05 1993-10-12 Motorola, Inc. Delta-coded lag information for use in a speech coder
DK0556354T3 (da) * 1991-09-05 2001-12-17 Motorola Inc Fejlbeskyttelse til multitilstandstalekodere
TW224191B (de) * 1992-01-28 1994-05-21 Qualcomm Inc
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
US5317595A (en) * 1992-06-30 1994-05-31 Nokia Mobile Phones Ltd. Rapidly adaptable channel equalizer
IT1264766B1 (it) * 1993-04-09 1996-10-04 Sip Codificatore della voce utilizzante tecniche di analisi con un'eccitazione a impulsi.

Also Published As

Publication number Publication date
FR2729244A1 (fr) 1996-07-12
ATE174147T1 (de) 1998-12-15
CN1134761C (zh) 2004-01-14
ATE183600T1 (de) 1999-09-15
WO1996021219A1 (fr) 1996-07-11
EP0721180B1 (de) 1999-08-18
EP0721180A1 (de) 1996-07-10
EP0801789B1 (de) 1998-12-02
DE69601068T2 (de) 1999-07-15
US5899968A (en) 1999-05-04
DE69603755T2 (de) 2000-07-06
FR2729244B1 (fr) 1997-03-28
CN1173940A (zh) 1998-02-18
DE69601068D1 (de) 1999-01-14
AU4490296A (en) 1996-07-24
EP0801789A1 (de) 1997-10-22

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee