MX9307743A - Metodo y aparato para codificacion de una señal original. - Google Patents

Metodo y aparato para codificacion de una señal original.

Info

Publication number
MX9307743A
MX9307743A MX9307743A MX9307743A MX9307743A MX 9307743 A MX9307743 A MX 9307743A MX 9307743 A MX9307743 A MX 9307743A MX 9307743 A MX9307743 A MX 9307743A MX 9307743 A MX9307743 A MX 9307743A
Authority
MX
Mexico
Prior art keywords
signal
original
original signal
original test
segments
Prior art date
Application number
MX9307743A
Other languages
English (en)
Spanish (es)
Inventor
Willem Bastiaan Kleijn
Original Assignee
American Telephone & Telegraph
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 American Telephone & Telegraph filed Critical American Telephone & Telegraph
Publication of MX9307743A publication Critical patent/MX9307743A/es

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
    • 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
    • G10L2019/0002—Codebook adaptations
    • 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
    • G10L2019/0011—Long term prediction filters, i.e. pitch estimation
    • 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
    • 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
    • G10L25/06—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 correlation coefficients

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
MX9307743A 1992-12-14 1993-12-08 Metodo y aparato para codificacion de una señal original. MX9307743A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US99030992A 1992-12-14 1992-12-14

Publications (1)

Publication Number Publication Date
MX9307743A true MX9307743A (es) 1994-06-30

Family

ID=25536013

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9307743A MX9307743A (es) 1992-12-14 1993-12-08 Metodo y aparato para codificacion de una señal original.

Country Status (6)

Country Link
EP (1) EP0602826B1 (de)
JP (1) JP3770925B2 (de)
CA (1) CA2102080C (de)
DE (1) DE69326126T2 (de)
ES (1) ES2136649T3 (de)
MX (1) MX9307743A (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5704003A (en) * 1995-09-19 1997-12-30 Lucent Technologies Inc. RCELP coder
CA2213909C (en) * 1996-08-26 2002-01-22 Nec Corporation High quality speech coder at low bit rates
FI113903B (fi) * 1997-05-07 2004-06-30 Nokia Corp Puheen koodaus
JP4857468B2 (ja) 2001-01-25 2012-01-18 ソニー株式会社 データ処理装置およびデータ処理方法、並びにプログラムおよび記録媒体
JP4857467B2 (ja) * 2001-01-25 2012-01-18 ソニー株式会社 データ処理装置およびデータ処理方法、並びにプログラムおよび記録媒体
JP3888097B2 (ja) 2001-08-02 2007-02-28 松下電器産業株式会社 ピッチ周期探索範囲設定装置、ピッチ周期探索装置、復号化適応音源ベクトル生成装置、音声符号化装置、音声復号化装置、音声信号送信装置、音声信号受信装置、移動局装置、及び基地局装置
CA2365203A1 (en) 2001-12-14 2003-06-14 Voiceage Corporation A signal modification method for efficient coding of speech signals
DE602004030594D1 (de) * 2003-10-07 2011-01-27 Panasonic Corp Verfahren zur entscheidung der zeitgrenze zur codierung der spektro-hülle und frequenzauflösung
FI118704B (fi) 2003-10-07 2008-02-15 Nokia Corp Menetelmä ja laite lähdekoodauksen tekemiseksi
US8744091B2 (en) * 2010-11-12 2014-06-03 Apple Inc. Intelligibility control using ambient noise detection
KR102446441B1 (ko) * 2012-11-13 2022-09-22 삼성전자주식회사 부호화 모드 결정방법 및 장치, 오디오 부호화방법 및 장치와, 오디오 복호화방법 및 장치

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8902347A (nl) * 1989-09-20 1991-04-16 Nederland Ptt Werkwijze voor het coderen van een binnen een zeker tijdsinterval voorkomend analoog signaal, waarbij dat analoge signaal wordt geconverteerd in besturingscodes die bruikbaar zijn voor het samenstellen van een met dat analoge signaal overeenkomend synthetisch signaal.
US5323486A (en) * 1990-09-14 1994-06-21 Fujitsu Limited Speech coding system having codebook storing differential vectors between each two adjoining code vectors
ES2115646T3 (es) * 1991-10-25 1998-07-01 At & T Corp Metodo y aparato generalizados de codificacion vocal mediante analisis por sintesis.

Also Published As

Publication number Publication date
CA2102080C (en) 1998-07-28
CA2102080A1 (en) 1994-06-15
ES2136649T3 (es) 1999-12-01
JP3770925B2 (ja) 2006-04-26
DE69326126T2 (de) 2000-07-06
EP0602826A2 (de) 1994-06-22
EP0602826A3 (de) 1994-12-07
EP0602826B1 (de) 1999-08-25
JPH06214600A (ja) 1994-08-05
DE69326126D1 (de) 1999-09-30

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Legal Events

Date Code Title Description
FG Grant or registration
MM Annulment or lapse due to non-payment of fees