BRPI0517778A - aparelho de transformação de vetor e método de transformação de vetor - Google Patents

aparelho de transformação de vetor e método de transformação de vetor

Info

Publication number
BRPI0517778A
BRPI0517778A BRPI0517778-2A BRPI0517778A BRPI0517778A BR PI0517778 A BRPI0517778 A BR PI0517778A BR PI0517778 A BRPI0517778 A BR PI0517778A BR PI0517778 A BRPI0517778 A BR PI0517778A
Authority
BR
Brazil
Prior art keywords
vector
quantization unit
vector transformation
code
lpc parameter
Prior art date
Application number
BRPI0517778-2A
Other languages
English (en)
Inventor
Toshiyuki Morii
Original Assignee
Matsushita Electric Ind Co Ltd
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 Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of BRPI0517778A publication Critical patent/BRPI0517778A/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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • G10L19/07—Line spectrum pair [LSP] 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
    • G10L19/08—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
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

APARELHO DE TRANSFORMAçãO DE VETOR E MéTODO DE TRANSFORMAçãO DE VETOR. Trata-se de um dispositivo de conversão de vetor para converter um vetor de referência usado para quantificação de um vetor de entrada de modo a melhorar uma qualidade de sinal incluindo áudio. Neste dispositivo de conversão de vetor, uma unidade de quantificação de vetor (902) adquire um número correspondente a um parâmetro LPC decodificado de uma banda estreita de todos os vetores de código armazenados em um livro de códigos (903). Uma unidade de de-quantificação de vetor (904) referencia o número do vetor de código obtido pela unidade de quantificação de vetor (902) e seleciona um vetor de código do livro de códigos (905). Uma unidade de conversão (906) realiza cálculo usando um parâmetro LPC ajustado por amostragem obtido de uma unidade de amostragem superior (901) e um vetor obtido da unidade de de-quantificação de vetor (904), obtendo assim um parâmetro LPC decodificado de uma banda larga.
BRPI0517778-2A 2004-11-04 2005-11-01 aparelho de transformação de vetor e método de transformação de vetor BRPI0517778A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004321248A JP4871501B2 (ja) 2004-11-04 2004-11-04 ベクトル変換装置及びベクトル変換方法
PCT/JP2005/020129 WO2006049179A1 (ja) 2004-11-04 2005-11-01 ベクトル変換装置及びベクトル変換方法

Publications (1)

Publication Number Publication Date
BRPI0517778A true BRPI0517778A (pt) 2008-10-21

Family

ID=36319184

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0517778-2A BRPI0517778A (pt) 2004-11-04 2005-11-01 aparelho de transformação de vetor e método de transformação de vetor

Country Status (9)

Country Link
US (1) US7809558B2 (pt)
EP (1) EP1796084B1 (pt)
JP (1) JP4871501B2 (pt)
KR (1) KR20070083957A (pt)
CN (1) CN101057275B (pt)
BR (1) BRPI0517778A (pt)
CA (1) CA2586251A1 (pt)
RU (1) RU2007116804A (pt)
WO (1) WO2006049179A1 (pt)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7610195B2 (en) 2006-06-01 2009-10-27 Nokia Corporation Decoding of predictively coded data using buffer adaptation
JP4871894B2 (ja) * 2007-03-02 2012-02-08 パナソニック株式会社 符号化装置、復号装置、符号化方法および復号方法
US8620648B2 (en) * 2007-07-27 2013-12-31 Panasonic Corporation Audio encoding device and audio encoding method
EP2045800A1 (en) * 2007-10-05 2009-04-08 Nokia Siemens Networks Oy Method and apparatus for transcoding
EP2301021B1 (en) 2008-07-10 2017-06-21 VoiceAge Corporation Device and method for quantizing lpc filters in a super-frame
KR101261677B1 (ko) * 2008-07-14 2013-05-06 광운대학교 산학협력단 음성/음악 통합 신호의 부호화/복호화 장치
WO2011048810A1 (ja) * 2009-10-20 2011-04-28 パナソニック株式会社 ベクトル量子化装置及びベクトル量子化方法
WO2011058758A1 (ja) * 2009-11-13 2011-05-19 パナソニック株式会社 符号化装置、復号装置およびこれらの方法
WO2011074233A1 (ja) * 2009-12-14 2011-06-23 パナソニック株式会社 ベクトル量子化装置、音声符号化装置、ベクトル量子化方法、及び音声符号化方法
MX2012011943A (es) * 2010-04-14 2013-01-24 Voiceage Corp Libro de códigos de innovacion combinado, flexible y escalable para uso en codificador y decodificador celp.
WO2011155144A1 (ja) * 2010-06-11 2011-12-15 パナソニック株式会社 復号装置、符号化装置及びこれらの方法
US8924200B2 (en) * 2010-10-15 2014-12-30 Motorola Mobility Llc Audio signal bandwidth extension in CELP-based speech coder
US8868432B2 (en) * 2010-10-15 2014-10-21 Motorola Mobility Llc Audio signal bandwidth extension in CELP-based speech coder
EP2671323B1 (en) * 2011-02-01 2016-10-05 Huawei Technologies Co., Ltd. Method and apparatus for providing signal processing coefficients
JP5817499B2 (ja) * 2011-12-15 2015-11-18 富士通株式会社 復号装置、符号化装置、符号化復号システム、復号方法、符号化方法、復号プログラム、及び符号化プログラム
US20150170655A1 (en) * 2013-12-15 2015-06-18 Qualcomm Incorporated Systems and methods of blind bandwidth extension
CN114171035A (zh) * 2020-09-11 2022-03-11 海能达通信股份有限公司 抗干扰方法及装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4926488A (en) * 1987-07-09 1990-05-15 International Business Machines Corporation Normalization of speech by adaptive labelling
JP2779886B2 (ja) * 1992-10-05 1998-07-23 日本電信電話株式会社 広帯域音声信号復元方法
JP3483958B2 (ja) * 1994-10-28 2004-01-06 三菱電機株式会社 広帯域音声復元装置及び広帯域音声復元方法及び音声伝送システム及び音声伝送方法
US6889182B2 (en) * 2001-01-12 2005-05-03 Telefonaktiebolaget L M Ericsson (Publ) Speech bandwidth extension
US6895375B2 (en) * 2001-10-04 2005-05-17 At&T Corp. System for bandwidth extension of Narrow-band speech
JP2003323199A (ja) 2002-04-26 2003-11-14 Matsushita Electric Ind Co Ltd 符号化装置、復号化装置及び符号化方法、復号化方法
CN100346392C (zh) 2002-04-26 2007-10-31 松下电器产业株式会社 编码设备、解码设备、编码方法和解码方法

Also Published As

Publication number Publication date
JP4871501B2 (ja) 2012-02-08
US20080126085A1 (en) 2008-05-29
CN101057275B (zh) 2011-06-15
WO2006049179A1 (ja) 2006-05-11
US7809558B2 (en) 2010-10-05
RU2007116804A (ru) 2008-11-20
EP1796084A4 (en) 2008-07-02
KR20070083957A (ko) 2007-08-24
CN101057275A (zh) 2007-10-17
EP1796084A1 (en) 2007-06-13
JP2006133423A (ja) 2006-05-25
CA2586251A1 (en) 2006-05-11
EP1796084B1 (en) 2014-06-04

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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 19/07 (2013.01), G10L 19/24 (2013.01), G10L 2