BR0015070A - Um codificador de fala preditivo usando padrões de seleção de esquema de codificação para reduzir a sensibilidade a erros de frames - Google Patents

Um codificador de fala preditivo usando padrões de seleção de esquema de codificação para reduzir a sensibilidade a erros de frames

Info

Publication number
BR0015070A
BR0015070A BR0015070-3A BR0015070A BR0015070A BR 0015070 A BR0015070 A BR 0015070A BR 0015070 A BR0015070 A BR 0015070A BR 0015070 A BR0015070 A BR 0015070A
Authority
BR
Brazil
Prior art keywords
speech
frames
coding scheme
scheme selection
frame
Prior art date
Application number
BR0015070-3A
Other languages
English (en)
Other versions
BRPI0015070B1 (pt
Inventor
Sharate Manjunath
Andrew P Dejaco
Arasanipala Ananthapadmanabham
Eddie Lun Tik Choy
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR0015070A publication Critical patent/BR0015070A/pt
Publication of BRPI0015070B1 publication Critical patent/BRPI0015070B1/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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

"UM CODIFICADOR DE FALA PREDITIVO USANDO PADRõES DE SELEçãO DE ESQUEMA DE CODIFICAçãO PARA REDUZIR A SENSIBILIDADE A ERROS DE FRAMES. Um método e um equipamento para usar padrões de seleção de esquema de codificação em um codificador de fala preditivo para reduzir a sensibilidade às condições de erros de frames inclui um codificador de fala configurado para selecionar dentre vários modos de codificação preditiva. Após um número predefinido de frames de fala terem sido preditivamente codificados, o codificador de fala codifica um frame com um modo de codificação não preditiva ou um modo de codificação levemente preditiva. O número predefinido de frames pode ser determinado em avanço a partir do ponto de vista subjetivo de um ouvinte. O número predefinido de frames pode ser variado periodicamente. Uma taxa média de bits de codificação pode ser mantida para o codificador de fala assegurando-se que uma taxa média de bits de codificação seja mantida para cada padrão, ou grupo, sucessivos de frames de fala preditivamente codificados, incluindo pelo menos um frame de fala codificado não preditivamente ou codificado de forma levemente preditiva.
BRPI0015070A 1999-10-28 2000-10-26 método para codificar frames de fala, e, codificador de fala para reduzir sensibilidade às condições de erro de frame BRPI0015070B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/429,754 US6438518B1 (en) 1999-10-28 1999-10-28 Method and apparatus for using coding scheme selection patterns in a predictive speech coder to reduce sensitivity to frame error conditions
PCT/US2000/029710 WO2001031639A1 (en) 1999-10-28 2000-10-26 A predictive speech coder using coding scheme selection patterns to reduce sensitivity to frame errors

Publications (2)

Publication Number Publication Date
BR0015070A true BR0015070A (pt) 2002-12-24
BRPI0015070B1 BRPI0015070B1 (pt) 2016-10-11

Family

ID=23704610

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0015070A BRPI0015070B1 (pt) 1999-10-28 2000-10-26 método para codificar frames de fala, e, codificador de fala para reduzir sensibilidade às condições de erro de frame

Country Status (13)

Country Link
US (1) US6438518B1 (pt)
EP (1) EP1224663B1 (pt)
JP (2) JP4805506B2 (pt)
KR (2) KR100804888B1 (pt)
CN (1) CN1212607C (pt)
AT (1) ATE346357T1 (pt)
AU (1) AU1576001A (pt)
BR (1) BRPI0015070B1 (pt)
DE (1) DE60032006T2 (pt)
ES (1) ES2274812T3 (pt)
HK (1) HK1051735A1 (pt)
TW (1) TW530296B (pt)
WO (1) WO2001031639A1 (pt)

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US8032369B2 (en) * 2006-01-20 2011-10-04 Qualcomm Incorporated Arbitrary average data rates for variable rate coders
US8346544B2 (en) * 2006-01-20 2013-01-01 Qualcomm Incorporated Selection of encoding modes and/or encoding rates for speech compression with closed loop re-decision
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US8171380B2 (en) * 2006-10-10 2012-05-01 Marvell World Trade Ltd. Adaptive systems and methods for storing and retrieving data to and from memory cells
US7813922B2 (en) * 2007-01-30 2010-10-12 Nokia Corporation Audio quantization
KR101228165B1 (ko) * 2008-06-13 2013-01-30 노키아 코포레이션 프레임 에러 은폐 방법, 장치 및 컴퓨터 판독가능한 저장 매체
KR20130036304A (ko) * 2010-07-01 2013-04-11 엘지전자 주식회사 오디오 신호 처리 방법 및 장치
US8990094B2 (en) * 2010-09-13 2015-03-24 Qualcomm Incorporated Coding and decoding a transient frame
US9263054B2 (en) * 2013-02-21 2016-02-16 Qualcomm Incorporated Systems and methods for controlling an average encoding rate for speech signal encoding
TWI557727B (zh) * 2013-04-05 2016-11-11 杜比國際公司 音訊處理系統、多媒體處理系統、處理音訊位元流的方法以及電腦程式產品
JP2017009663A (ja) * 2015-06-17 2017-01-12 ソニー株式会社 録音装置、録音システム、および、録音方法

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Also Published As

Publication number Publication date
JP2003515178A (ja) 2003-04-22
ES2274812T3 (es) 2007-06-01
BRPI0015070B1 (pt) 2016-10-11
EP1224663B1 (en) 2006-11-22
EP1224663A1 (en) 2002-07-24
AU1576001A (en) 2001-05-08
DE60032006D1 (de) 2007-01-04
KR20070112894A (ko) 2007-11-27
US6438518B1 (en) 2002-08-20
DE60032006T2 (de) 2007-06-21
KR100804888B1 (ko) 2008-02-20
JP4805506B2 (ja) 2011-11-02
WO2001031639A1 (en) 2001-05-03
HK1051735A1 (en) 2003-08-15
JP5543405B2 (ja) 2014-07-09
JP2011237809A (ja) 2011-11-24
CN1212607C (zh) 2005-07-27
KR20020040910A (ko) 2002-05-30
ATE346357T1 (de) 2006-12-15
KR100827896B1 (ko) 2008-05-07
CN1402869A (zh) 2003-03-12
TW530296B (en) 2003-05-01

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B15K Others concerning applications: alteration of classification

Free format text: A CLASSIFICACAO ANTERIOR ERA: G10L 19/14

Ipc: G10L 19/18 (2013.01), G10L 19/06 (2013.01), G10L 1

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: INDEFIRO O PEDIDO DE ACORDO COM O ART .8O COMBINADO COM ART. 13 DA LPI

B12B Appeal against refusal [chapter 12.2 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 11/10/2016, OBSERVADAS AS CONDICOES LEGAIS.