DE69815242D1 - Verfahren zur Quantisierung der LPC Parameter mittels geschalteter prädiktiver Quantisierung - Google Patents

Verfahren zur Quantisierung der LPC Parameter mittels geschalteter prädiktiver Quantisierung

Info

Publication number
DE69815242D1
DE69815242D1 DE69815242T DE69815242T DE69815242D1 DE 69815242 D1 DE69815242 D1 DE 69815242D1 DE 69815242 T DE69815242 T DE 69815242T DE 69815242 T DE69815242 T DE 69815242T DE 69815242 D1 DE69815242 D1 DE 69815242D1
Authority
DE
Germany
Prior art keywords
quantization
lpc parameters
switched predictive
switched
predictive quantization
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
DE69815242T
Other languages
English (en)
Other versions
DE69815242T2 (de
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
Publication of DE69815242D1 publication Critical patent/DE69815242D1/de
Application granted granted Critical
Publication of DE69815242T2 publication Critical patent/DE69815242T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • 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
    • G10L19/12—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 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
    • G10L19/06—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 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
    • G10L2019/0001—Codebooks
    • G10L2019/0004—Design or structure of the codebook
    • G10L2019/0005—Multi-stage vector quantisation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/12—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being prediction coefficients
DE69815242T 1997-08-28 1998-08-27 Verfahren zur Quantisierung der LPC Parameter mittels geschalteter prädiktiver Quantisierung Expired - Lifetime DE69815242T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US5711997P 1997-08-28 1997-08-28
US57119P 1997-08-28

Publications (2)

Publication Number Publication Date
DE69815242D1 true DE69815242D1 (de) 2003-07-10
DE69815242T2 DE69815242T2 (de) 2004-04-15

Family

ID=22008627

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69815242T Expired - Lifetime DE69815242T2 (de) 1997-08-28 1998-08-27 Verfahren zur Quantisierung der LPC Parameter mittels geschalteter prädiktiver Quantisierung

Country Status (6)

Country Link
US (1) US6122608A (de)
EP (1) EP0905680B1 (de)
JP (1) JPH11143499A (de)
KR (1) KR100889399B1 (de)
DE (1) DE69815242T2 (de)
TW (1) TW408298B (de)

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US20030028386A1 (en) * 2001-04-02 2003-02-06 Zinser Richard L. Compressed domain universal transcoder
US20030195745A1 (en) * 2001-04-02 2003-10-16 Zinser, Richard L. LPC-to-MELP transcoder
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US20030135547A1 (en) * 2001-07-23 2003-07-17 Kent J. Thomas Extensible modular communication executive with active message queue and intelligent message pre-validation
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US8090577B2 (en) * 2002-08-08 2012-01-03 Qualcomm Incorported Bandwidth-adaptive quantization
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KR100486732B1 (ko) * 2003-02-19 2005-05-03 삼성전자주식회사 블럭제한된 트렐리스 부호화 양자화방법과 음성부호화시스템에있어서 이를 채용한 라인스펙트럼주파수 계수양자화방법 및 장치
KR100647290B1 (ko) * 2004-09-22 2006-11-23 삼성전자주식회사 합성된 음성의 특성을 이용하여 양자화/역양자화를선택하는 음성 부호화/복호화 장치 및 그 방법
US20060080090A1 (en) * 2004-10-07 2006-04-13 Nokia Corporation Reusing codebooks in parameter quantization
KR101565919B1 (ko) 2006-11-17 2015-11-05 삼성전자주식회사 고주파수 신호 부호화 및 복호화 방법 및 장치
JP2008170488A (ja) * 2007-01-06 2008-07-24 Yamaha Corp 波形圧縮装置、波形伸長装置、プログラムおよび圧縮データの生産方法
US20080249767A1 (en) * 2007-04-05 2008-10-09 Ali Erdem Ertan Method and system for reducing frame erasure related error propagation in predictive speech parameter coding
CN101335004B (zh) * 2007-11-02 2010-04-21 华为技术有限公司 一种多级量化的方法及装置
EP2301021B1 (de) * 2008-07-10 2017-06-21 VoiceAge Corporation Vorrichtung und verfahren zur quantisierung von lpc-filtern in einem superrahmen
GB2466671B (en) * 2009-01-06 2013-03-27 Skype Speech encoding
GB2466669B (en) * 2009-01-06 2013-03-06 Skype Speech coding
GB2466675B (en) 2009-01-06 2013-03-06 Skype Speech coding
GB2466672B (en) * 2009-01-06 2013-03-13 Skype Speech coding
GB2466670B (en) * 2009-01-06 2012-11-14 Skype Speech encoding
GB2466674B (en) * 2009-01-06 2013-11-13 Skype Speech coding
GB2466673B (en) 2009-01-06 2012-11-07 Skype Quantization
US8452606B2 (en) * 2009-09-29 2013-05-28 Skype Speech encoding using multiple bit rates
KR101660843B1 (ko) * 2010-05-27 2016-09-29 삼성전자주식회사 Ｌｐｃ 계수 양자화를 위한 가중치 함수 결정 장치 및 방법
KR101747917B1 (ko) 2010-10-18 2017-06-15 삼성전자주식회사 선형 예측 계수를 양자화하기 위한 저복잡도를 가지는 가중치 함수 결정 장치 및 방법
TWI456516B (zh) * 2010-12-17 2014-10-11 Univ Nat Chiao Tung 獨立成分分析處理器
JP2013140494A (ja) * 2012-01-05 2013-07-18 Kddi Corp 高次元の特徴ベクトルを検索する検索装置及びプログラム
EP3125241B1 (de) 2014-03-28 2021-05-05 Samsung Electronics Co., Ltd. Verfahren und vorrichtung zur quantisierung von linearen prognosekoeffizienten sowie verfahren und vorrichtung zur inversen quantisierung
KR101855945B1 (ko) 2014-05-01 2018-05-10 니폰 덴신 덴와 가부시끼가이샤 부호화 장치, 복호 장치 및 그 방법, 프로그램, 기록 매체
KR102593442B1 (ko) 2014-05-07 2023-10-25 삼성전자주식회사 선형예측계수 양자화방법 및 장치와 역양자화 방법 및 장치

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US5966688A (en) * 1997-10-28 1999-10-12 Hughes Electronics Corporation Speech mode based multi-stage vector quantizer

Also Published As

Publication number Publication date
US6122608A (en) 2000-09-19
EP0905680A3 (de) 1999-09-29
KR100889399B1 (ko) 2009-06-03
DE69815242T2 (de) 2004-04-15
KR19990023932A (ko) 1999-03-25
JPH11143499A (ja) 1999-05-28
TW408298B (en) 2000-10-11
EP0905680A2 (de) 1999-03-31
EP0905680B1 (de) 2003-06-04

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