[go: up one dir, main page]

BRPI0407593A - método e aparelho para a codificação da fala - Google Patents

método e aparelho para a codificação da fala

Info

Publication number
BRPI0407593A
BRPI0407593A BRPI0407593-5A BRPI0407593A BRPI0407593A BR PI0407593 A BRPI0407593 A BR PI0407593A BR PI0407593 A BRPI0407593 A BR PI0407593A BR PI0407593 A BRPI0407593 A BR PI0407593A
Authority
BR
Brazil
Prior art keywords
filter
ltp
delay
bypass
resolution
Prior art date
Application number
BRPI0407593-5A
Other languages
English (en)
Inventor
Mark A Jasiuk
Tenkasi V Ramabadran
Udar Mittal
James P Ashley
Michael J Mclaughlin
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Publication of BRPI0407593A publication Critical patent/BRPI0407593A/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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/09—Long term prediction, i.e. removing periodical redundancies, e.g. by using adaptive codebook or pitch predictor

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)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

"MéTODO E APARELHO PARA A CODIFICAçãO DA FALA". Um método (Figura 9) e aparelho (500, 600) para predição em um sistema de codificação da fala amplia um filtro de predição de longo prazo de primeira ordem (LTP), utilizando um retardo de resolução de sub-amostra, para um filtro LTP multi-derivação (504,604). De outra perspectiva, um filtro LTP multi-derivação de resolução de amostra inteira convencional é ampliado para utilizar retardo de resolução de sub-amostra. Esse filtro LTP multi-derivação oferece um número de vantagens sobre o estado da técnica. Particularmente, definir o atraso com a resolução de subamostra torna possível modelar explicitamente os valores de retardo que têm um componente fracionário, dentro dos limites de resolução do fator de sobre-amostragem utilizado pelo filtro de interpolação. Os coeficientes (<225>i<39>s) do filtro LTP multi-derivação são assim em grande parte liberados de modelar o efeito dos retardos que têm um componente fracionário. Conseqüentemente, sua principal função é maximizar o ganho de predição do filtro LTP através da modelagem do grau de periodicidade que está presente e ao impor a formatação espectral.
BRPI0407593-5A 2003-12-19 2004-12-17 método e aparelho para a codificação da fala BRPI0407593A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US53139603P 2003-12-19 2003-12-19
US10/964,861 US7792670B2 (en) 2003-12-19 2004-10-14 Method and apparatus for speech coding
PCT/US2004/042642 WO2005064591A1 (en) 2003-12-19 2004-12-17 Method and apparatus for speech coding

Publications (1)

Publication Number Publication Date
BRPI0407593A true BRPI0407593A (pt) 2006-02-21

Family

ID=34681619

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0407593-5A BRPI0407593A (pt) 2003-12-19 2004-12-17 método e aparelho para a codificação da fala

Country Status (7)

Country Link
US (2) US7792670B2 (pt)
EP (1) EP1697925A4 (pt)
JP (3) JP4539988B2 (pt)
KR (1) KR100748381B1 (pt)
CN (2) CN101847414B (pt)
BR (1) BRPI0407593A (pt)
WO (1) WO2005064591A1 (pt)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060067016A (ko) * 2004-12-14 2006-06-19 엘지전자 주식회사 음성 부호화 장치 및 방법
FR2880724A1 (fr) * 2005-01-11 2006-07-14 France Telecom Procede et dispositif de codage optimise entre deux modeles de prediction a long terme
US7177804B2 (en) * 2005-05-31 2007-02-13 Microsoft Corporation Sub-band voice codec with multi-stage codebooks and redundant coding
US9058812B2 (en) * 2005-07-27 2015-06-16 Google Technology Holdings LLC Method and system for coding an information signal using pitch delay contour adjustment
US7490036B2 (en) * 2005-10-20 2009-02-10 Motorola, Inc. Adaptive equalizer for a coded speech signal
CN101609677B (zh) 2009-03-13 2012-01-04 华为技术有限公司 一种预处理方法、装置及编码设备
TWI462087B (zh) 2010-11-12 2014-11-21 Dolby Lab Licensing Corp 複數音頻信號之降混方法、編解碼方法及混合系統
EP2727106B1 (en) * 2011-07-01 2019-08-21 Nokia Technologies Oy Multiple scale codebook search
WO2013062370A1 (ko) * 2011-10-28 2013-05-02 한국전자통신연구원 통신 시스템에서 신호 코덱 장치 및 방법
KR102138320B1 (ko) 2011-10-28 2020-08-11 한국전자통신연구원 통신 시스템에서 신호 코덱 장치 및 방법
KR101700855B1 (ko) * 2012-10-01 2017-01-31 니폰 덴신 덴와 가부시끼가이샤 부호화 방법, 부호화 장치, 프로그램 및 기록 매체
WO2014072469A1 (en) 2012-11-09 2014-05-15 Aktiebolaget Electrolux Cyclone dust separator arrangement, cyclone dust separator and cyclone vacuum cleaner
US9418671B2 (en) * 2013-08-15 2016-08-16 Huawei Technologies Co., Ltd. Adaptive high-pass post-filter
WO2017005296A1 (en) 2015-07-06 2017-01-12 Nokia Technologies Oy Bit error detector for an audio signal decoder
WO2018049279A1 (en) 2016-09-09 2018-03-15 Dts, Inc. System and method for long-term prediction in audio codecs
US10381020B2 (en) * 2017-06-16 2019-08-13 Apple Inc. Speech model-based neural network-assisted signal enhancement
CN109883692B (zh) * 2019-04-04 2020-01-14 西安交通大学 基于内置编码器信息的广义差分滤波方法
CN114006668B (zh) * 2021-10-29 2024-02-20 中国人民解放军国防科技大学 卫星信道免系数更新的高精确时延滤波方法和装置

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4910781A (en) * 1987-06-26 1990-03-20 At&T Bell Laboratories Code excited linear predictive vocoder using virtual searching
US5359696A (en) * 1988-06-28 1994-10-25 Motorola Inc. Digital speech coder having improved sub-sample resolution long-term predictor
JP3194481B2 (ja) * 1991-10-22 2001-07-30 日本電信電話株式会社 音声符号化法
US5396576A (en) * 1991-05-22 1995-03-07 Nippon Telegraph And Telephone Corporation Speech coding and decoding methods using adaptive and random code books
US5327520A (en) * 1992-06-04 1994-07-05 At&T Bell Laboratories Method of use of voice message coder/decoder
FR2729246A1 (fr) * 1995-01-06 1996-07-12 Matra Communication Procede de codage de parole a analyse par synthese
FR2734389B1 (fr) * 1995-05-17 1997-07-18 Proust Stephane Procede d'adaptation du niveau de masquage du bruit dans un codeur de parole a analyse par synthese utilisant un filtre de ponderation perceptuelle a court terme
KR100389895B1 (ko) * 1996-05-25 2003-11-28 삼성전자주식회사 음성 부호화 및 복호화방법 및 그 장치
JPH10228491A (ja) * 1997-02-13 1998-08-25 Toshiba Corp 論理検証装置
US6014618A (en) * 1998-08-06 2000-01-11 Dsp Software Engineering, Inc. LPAS speech coder using vector quantized, multi-codebook, multi-tap pitch predictor and optimized ternary source excitation codebook derivation
US6449590B1 (en) * 1998-08-24 2002-09-10 Conexant Systems, Inc. Speech encoder using warping in long term preprocessing
US6556966B1 (en) * 1998-08-24 2003-04-29 Conexant Systems, Inc. Codebook structure for changeable pulse multimode speech coding
CA2252170A1 (en) * 1998-10-27 2000-04-27 Bruno Bessette A method and device for high quality coding of wideband speech and audio signals
JP3180786B2 (ja) * 1998-11-27 2001-06-25 日本電気株式会社 音声符号化方法及び音声符号化装置
US6539357B1 (en) * 1999-04-29 2003-03-25 Agere Systems Inc. Technique for parametric coding of a signal containing information
US6604070B1 (en) * 1999-09-22 2003-08-05 Conexant Systems, Inc. System of encoding and decoding speech signals
US6782360B1 (en) * 1999-09-22 2004-08-24 Mindspeed Technologies, Inc. Gain quantization for a CELP speech coder
JP2002366199A (ja) * 2001-06-11 2002-12-20 Matsushita Electric Ind Co Ltd Ｃｅｌｐ型音声符号化装置
JP3984048B2 (ja) * 2001-12-25 2007-09-26 株式会社東芝 音声／音響信号の符号化方法及び電子装置
US6829579B2 (en) * 2002-01-08 2004-12-07 Dilithium Networks, Inc. Transcoding method and system between CELP-based speech codes

Also Published As

Publication number Publication date
EP1697925A1 (en) 2006-09-06
JP4539988B2 (ja) 2010-09-08
JP2006514343A (ja) 2006-04-27
JP2013218360A (ja) 2013-10-24
EP1697925A4 (en) 2009-07-08
KR100748381B1 (ko) 2007-08-10
JP2010217912A (ja) 2010-09-30
US8538747B2 (en) 2013-09-17
CN1751338B (zh) 2010-09-01
CN101847414B (zh) 2016-08-17
CN101847414A (zh) 2010-09-29
US20050137863A1 (en) 2005-06-23
JP5400701B2 (ja) 2014-01-29
CN1751338A (zh) 2006-03-22
WO2005064591A1 (en) 2005-07-14
US20100286980A1 (en) 2010-11-11
US7792670B2 (en) 2010-09-07
KR20060030012A (ko) 2006-04-07

Similar Documents

Publication Publication Date Title
BRPI0407593A (pt) método e aparelho para a codificação da fala
WO2001082289A3 (en) Frame erasure compensation method in a variable rate speech coder
Alkofer et al. Mesons in a Poincare covariant Bethe-Salpeter approach
WO2008035275A3 (en) Encoding and decoding of audio objects
AU2001261618A1 (en) Pre-and post-processing of spectral data for calibration using multivariate analysis techniques
NO20064796L (no) Reflektivt diffrasjonsgitter for planar bolgeleder
NO20045718L (no) Fremgangsmate og system for multirate-latticevektorkvantisering av et signal
NO20056181L (no) Flytende hurtigherdende blanding, sproytebetongmateriale og fremgangsmate for sproyting ved anvendelse av disse materialene
EP1160770A3 (en) Perceptual coding of audio signals using separated irrelevancy reduction and redundancy reduction
AU2001264609A1 (en) Communications using adaptive multi-rate codecs
EP2088580A3 (en) Audio encoding and decoding
AU2003245452A1 (en) Method of measuring chromated conversion coating amount using infrared absorbance
AU2003257209A1 (en) Subsystem based optical interrogation of sample
WO2005124460A8 (en) Binder-free photopolymerizable compositions
BRPI0510904A (pt) método e sistema para prover uma seleção eletrÈnica de pelo menos uma fórmula de tinta colorida
AU2003286215A1 (en) Method of calibrating the zero point of an apparatus used to determine a quantity of silica using a colorimetric method
WO2002049625A3 (en) Compounds that affect cd83 expression, pharmaceutical compositions comprising said compounds and methods for identifying said compounds
EP1449839A3 (en) Fluorinated acrylic compounds, methods for preparation of the compounds and photoresist compositions containing same
AU2002350718A1 (en) Solid and stable creatine/citric acid composition(s) and compositions containing carbohydrate(s) or hydrates thereof, method for the production and use thereof
WO2002063610A1 (fr) Dispositif et procede de conversion de sequences de codes vocaux
WO2004070510A3 (en) Device and method of manipulating masked data
WO2003063491A3 (en) Improved compression techniques
WO2002065247A3 (en) Method of estimating precision of apparatus
TWI319388B (en) Manufacture of hydroxyamine compound by using ion-exchange resin fixed platinum catalyst
NO20034994D0 (no) Fremgangsmåte for å uttrykke langkjedet prenyldifosfatsyntese

Legal Events

Date Code Title Description
B25D Requested change of name of applicant approved

Owner name: MOTOROLA SOLUTIONS, INC. (US)

B25A Requested transfer of rights approved

Owner name: MOTOROLA MOBILITY, INC. (US)

B25G Requested change of headquarter approved

Owner name: MOTOROLA MOBILITY, INC. (US)

B25E Requested change of name of applicant rejected

Owner name: MOTOROLA MOBILITY, INC. (US)

Free format text: INDEFERIDA A ALTERACAO DE NOME SOLICITADA ATRAVES DA PETICAO NO 020130025972-RJ, DE 28/03/2013, UMA VEZ QUE NAO FOI PAGA A RESPECTIVA TAXA DE RETRIBUICAO.

B25D Requested change of name of applicant approved

Owner name: MOTOROLA MOBILITY, LLC (US)

B25A Requested transfer of rights approved

Owner name: GOOGLE TECHNOLOGY HOLDINGS LLC (US)

B15K Others concerning applications: alteration of classification

Ipc: G10L 19/09 (2013.01), G10L 19/12 (2013.01)

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B11D Dismissal acc. art. 38, par 2 of ipl - failure to pay fee after grant in time