BR0106825A - Método e aparelho para codificar/ decodificar a voz de um sinal de entrada, e artigo de fabricação - Google Patents

Método e aparelho para codificar/ decodificar a voz de um sinal de entrada, e artigo de fabricação

Info

Publication number
BR0106825A
BR0106825A BR0106825-3A BR0106825A BR0106825A BR 0106825 A BR0106825 A BR 0106825A BR 0106825 A BR0106825 A BR 0106825A BR 0106825 A BR0106825 A BR 0106825A
Authority
BR
Brazil
Prior art keywords
signal
input signal
decoding
encoding
voice
Prior art date
Application number
BR0106825-3A
Other languages
English (en)
Inventor
Steven A Benno
Original Assignee
Lucent Technologies 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 Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of BR0106825A publication Critical patent/BR0106825A/pt

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
    • G10L19/04—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
    • 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

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)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

"MéTODO E APARELHO PARA CODIFICAR/DECODIFICAR A VOZ DE UM SINAL DE ENTRADA, E ARTIGO DE FABRICAçãO". Um aparelho e método para a codificação/decodificação de voz de um sinal de entrada que compreende um filtro preditivo linear para gerar um sinal filtrado com um primeiro pulso de sinal e um segundo pulso de sinal em resposta ao recebimento do sinal de entrada e um processador tendo uma tabela de pesquisa com uma pluralidade de posições de trilha. O primeiro pulso de sinal é associado a uma primeira posição de trilha e o segundo pulso de sinal é associado a uma segunda posição de trilha em relação ao primeiro pulso de sinal que resulta em uma pluralidade de parâmetros de excitação. Adicionalmente, o aparelho tem um transmissor que transmite a pluralidade de parâmetros de excitação em um sinal de transmissão em resposta ao recebimento da pluralidade de parâmetros de excitação do processador.
BR0106825-3A 2000-08-07 2001-07-31 Método e aparelho para codificar/ decodificar a voz de um sinal de entrada, e artigo de fabricação BR0106825A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/633,465 US6728669B1 (en) 2000-08-07 2000-08-07 Relative pulse position in celp vocoding

Publications (1)

Publication Number Publication Date
BR0106825A true BR0106825A (pt) 2002-06-04

Family

ID=24539732

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0106825-3A BR0106825A (pt) 2000-08-07 2001-07-31 Método e aparelho para codificar/ decodificar a voz de um sinal de entrada, e artigo de fabricação

Country Status (9)

Country Link
US (1) US6728669B1 (pt)
EP (1) EP1184842B1 (pt)
JP (1) JP5027966B2 (pt)
KR (1) KR20020012509A (pt)
CN (1) CN1200404C (pt)
BR (1) BR0106825A (pt)
CA (1) CA2350353A1 (pt)
DE (1) DE60101827T2 (pt)
TW (1) TW521265B (pt)

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US6847929B2 (en) * 2000-10-12 2005-01-25 Texas Instruments Incorporated Algebraic codebook system and method
KR100503414B1 (ko) * 2002-11-14 2005-07-22 한국전자통신연구원 고정 코드북의 집중 검색 방법 및 장치
US20040208169A1 (en) * 2003-04-18 2004-10-21 Reznik Yuriy A. Digital audio signal compression method and apparatus
US7742926B2 (en) 2003-04-18 2010-06-22 Realnetworks, Inc. Digital audio signal compression method and apparatus
KR20060090984A (ko) * 2003-09-29 2006-08-17 코닌클리케 필립스 일렉트로닉스 엔.브이. 오디오 신호들을 엔코딩하는 방법 및 장치
US8502706B2 (en) * 2003-12-18 2013-08-06 Intel Corporation Bit allocation for encoding track information
KR100723400B1 (ko) 2004-05-12 2007-05-30 삼성전자주식회사 복수의 룩업테이블을 이용한 디지털 신호 부호화 방법 및장치
SG123639A1 (en) * 2004-12-31 2006-07-26 St Microelectronics Asia A system and method for supporting dual speech codecs
US7224295B2 (en) * 2005-07-11 2007-05-29 Mediatek Inc. System and method for modulation and demodulation using code subset conversion
KR100900438B1 (ko) * 2006-04-25 2009-06-01 삼성전자주식회사 음성 패킷 복구 장치 및 방법
US8688437B2 (en) 2006-12-26 2014-04-01 Huawei Technologies Co., Ltd. Packet loss concealment for speech coding
CN101286321B (zh) * 2006-12-26 2013-01-09 华为技术有限公司 双脉冲激励的线性测编码
CN102623012B (zh) 2011-01-26 2014-08-20 华为技术有限公司 矢量联合编解码方法及编解码器
WO2012172750A1 (ja) * 2011-06-15 2012-12-20 パナソニック株式会社 パルス位置探索装置、符号帳探索装置、及びこれらの方法
BR112013031816B1 (pt) 2011-06-30 2021-03-30 Telefonaktiebolaget Lm Ericsson Método e codificador de transformada de áudio para codificar um segmento de tempo de um sinal de áudio, e método e decodificador de transformada de áudio para decodificar um segmento de tempo codificado de um sinal de áudio
WO2013048171A2 (ko) * 2011-09-28 2013-04-04 엘지전자 주식회사 음성 신호 부호화 방법 및 음성 신호 복호화 방법 그리고 이를 이용하는 장치

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US5754976A (en) 1990-02-23 1998-05-19 Universite De Sherbrooke Algebraic codebook with signal-selected pulse amplitude/position combinations for fast coding of speech
AU671952B2 (en) * 1991-06-11 1996-09-19 Qualcomm Incorporated Variable rate vocoder
US5704003A (en) * 1995-09-19 1997-12-30 Lucent Technologies Inc. RCELP coder
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US6067511A (en) * 1998-07-13 2000-05-23 Lockheed Martin Corp. LPC speech synthesis using harmonic excitation generator with phase modulator for voiced speech
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Also Published As

Publication number Publication date
CN1200404C (zh) 2005-05-04
JP5027966B2 (ja) 2012-09-19
EP1184842A2 (en) 2002-03-06
DE60101827T2 (de) 2004-12-02
US6728669B1 (en) 2004-04-27
DE60101827D1 (de) 2004-02-26
CN1337671A (zh) 2002-02-27
KR20020012509A (ko) 2002-02-16
EP1184842B1 (en) 2004-01-21
CA2350353A1 (en) 2002-02-07
JP2002108400A (ja) 2002-04-10
EP1184842A3 (en) 2002-05-15
TW521265B (en) 2003-02-21

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]
B15K Others concerning applications: alteration of classification

Ipc: G10L 19/10 (2013.01)