AR020466A1 - Un metodo de codificacion/decodificacion de bloque de senal de codigo de prediccion lineal excitada, un codificador/decodificador para llevar a la practica dicho metodo y una estructura de multilibro para ser utilizada por dicho metodo y codificador/decodificador - Google Patents

Un metodo de codificacion/decodificacion de bloque de senal de codigo de prediccion lineal excitada, un codificador/decodificador para llevar a la practica dicho metodo y una estructura de multilibro para ser utilizada por dicho metodo y codificador/decodificador

Info

Publication number
AR020466A1
AR020466A1 ARP990104662A ARP990104662A AR020466A1 AR 020466 A1 AR020466 A1 AR 020466A1 AR P990104662 A ARP990104662 A AR P990104662A AR P990104662 A ARP990104662 A AR P990104662A AR 020466 A1 AR020466 A1 AR 020466A1
Authority
AR
Argentina
Prior art keywords
signal block
decoder
code
multiliber
decodifier
Prior art date
Application number
ARP990104662A
Other languages
English (en)
Original Assignee
Ericsson Telefon Ab L M
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20412632&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AR020466(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of AR020466A1 publication Critical patent/AR020466A1/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
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
    • 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
    • G10L2019/0005—Multi-stage vector quantisation

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)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

Se describe un codificador/decodificador de bloque de senal CELP con bitrato fijo de multi-libro de codigo que incluye un selector de libro decodigo (22) para seleccionar, para cada bloque de senal, una identificacion de libro de codigocorrespondien te de acuerdo con un procedimiento deseleccion determinante que es independiente del tipo de senal. También se incluyen los medios para codificar/decodificar cada bloque de senal medianteel uso de un libro de codigo que tiene laidentificacion de lib ro de codigo seleccionada.
ARP990104662A 1998-09-16 1999-09-16 Un metodo de codificacion/decodificacion de bloque de senal de codigo de prediccion lineal excitada, un codificador/decodificador para llevar a la practica dicho metodo y una estructura de multilibro para ser utilizada por dicho metodo y codificador/decodificador AR020466A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9803164A SE521225C2 (sv) 1998-09-16 1998-09-16 Förfarande och anordning för CELP-kodning/avkodning

Publications (1)

Publication Number Publication Date
AR020466A1 true AR020466A1 (es) 2002-05-15

Family

ID=20412632

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP990104662A AR020466A1 (es) 1998-09-16 1999-09-16 Un metodo de codificacion/decodificacion de bloque de senal de codigo de prediccion lineal excitada, un codificador/decodificador para llevar a la practica dicho metodo y una estructura de multilibro para ser utilizada por dicho metodo y codificador/decodificador

Country Status (15)

Country Link
US (2) US7146311B1 (es)
EP (1) EP1114413B1 (es)
JP (1) JP4651195B2 (es)
KR (1) KR100416362B1 (es)
CN (1) CN1143270C (es)
AR (1) AR020466A1 (es)
AU (1) AU756483B2 (es)
BR (1) BRPI9913756B8 (es)
CA (1) CA2343191C (es)
DE (1) DE69929069T2 (es)
MY (1) MY121083A (es)
SE (1) SE521225C2 (es)
TW (1) TW516275B (es)
WO (1) WO2000016314A2 (es)
ZA (1) ZA200101866B (es)

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WO2006096099A1 (en) * 2005-03-09 2006-09-14 Telefonaktiebolaget Lm Ericsson (Publ) Low-complexity code excited linear prediction encoding
US8031583B2 (en) 2005-03-30 2011-10-04 Motorola Mobility, Inc. Method and apparatus for reducing round trip latency and overhead within a communication system
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US8712766B2 (en) * 2006-05-16 2014-04-29 Motorola Mobility Llc Method and system for coding an information signal using closed loop adaptive bit allocation
ES2366551T3 (es) * 2006-11-29 2011-10-21 Loquendo Spa Codificación y decodificación dependiente de una fuente de múltiples libros de códigos.
KR101398836B1 (ko) * 2007-08-02 2014-05-26 삼성전자주식회사 스피치 코덱들의 고정 코드북들을 공통 모듈로 구현하는방법 및 장치
WO2009114656A1 (en) * 2008-03-14 2009-09-17 Dolby Laboratories Licensing Corporation Multimode coding of speech-like and non-speech-like signals
KR101520685B1 (ko) * 2008-07-04 2015-05-15 엘지전자 주식회사 복수의 코드북을 이용하는 다중 셀 환경에서의 셀 간 간섭 제거 방법
US20120008687A1 (en) * 2010-07-06 2012-01-12 Apple Inc. Video coding using vector quantized deblocking filters
US9628821B2 (en) 2010-10-01 2017-04-18 Apple Inc. Motion compensation using decoder-defined vector quantized interpolation filters
SG191771A1 (en) * 2010-12-29 2013-08-30 Samsung Electronics Co Ltd Apparatus and method for encoding/decoding for high-frequency bandwidth extension
KR101551046B1 (ko) 2011-02-14 2015-09-07 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 저-지연 통합 스피치 및 오디오 코딩에서 에러 은닉을 위한 장치 및 방법
CN103477387B (zh) 2011-02-14 2015-11-25 弗兰霍菲尔运输应用研究公司 使用频谱域噪声整形的基于线性预测的编码方案
KR101525185B1 (ko) 2011-02-14 2015-06-02 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 트랜지언트 검출 및 품질 결과를 사용하여 일부분의 오디오 신호를 코딩하기 위한 장치 및 방법
ES2639646T3 (es) * 2011-02-14 2017-10-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Codificación y decodificación de posiciones de impulso de pistas de una señal de audio
BR112013020482B1 (pt) 2011-02-14 2021-02-23 Fraunhofer Ges Forschung aparelho e método para processar um sinal de áudio decodificado em um domínio espectral
MY166394A (en) 2011-02-14 2018-06-25 Fraunhofer Ges Forschung Information signal representation using lapped transform
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Also Published As

Publication number Publication date
US7146311B1 (en) 2006-12-05
EP1114413B1 (en) 2005-12-21
TW516275B (en) 2003-01-01
JP2002525666A (ja) 2002-08-13
SE9803164L (sv) 2000-03-17
EP1114413A2 (en) 2001-07-11
ZA200101866B (en) 2001-09-11
SE9803164D0 (sv) 1998-09-16
DE69929069D1 (de) 2006-01-26
CA2343191A1 (en) 2000-03-23
BR9913756A (pt) 2001-06-05
US7194408B2 (en) 2007-03-20
JP4651195B2 (ja) 2011-03-16
WO2000016314A2 (en) 2000-03-23
KR100416362B1 (ko) 2004-01-31
KR20010075133A (ko) 2001-08-09
CN1143270C (zh) 2004-03-24
DE69929069T2 (de) 2006-07-20
MY121083A (en) 2005-12-30
US20050096901A1 (en) 2005-05-05
BRPI9913756B1 (pt) 2016-07-05
WO2000016314A3 (en) 2000-06-08
SE521225C2 (sv) 2003-10-14
BRPI9913756B8 (pt) 2016-08-02
AU6375699A (en) 2000-04-03
AU756483B2 (en) 2003-01-16
CA2343191C (en) 2009-10-27
CN1318189A (zh) 2001-10-17

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