BR112013005683A2 - aparelho codificador e método de codificação - Google Patents

aparelho codificador e método de codificação

Info

Publication number
BR112013005683A2
BR112013005683A2 BR112013005683A BR112013005683A BR112013005683A2 BR 112013005683 A2 BR112013005683 A2 BR 112013005683A2 BR 112013005683 A BR112013005683 A BR 112013005683A BR 112013005683 A BR112013005683 A BR 112013005683A BR 112013005683 A2 BR112013005683 A2 BR 112013005683A2
Authority
BR
Brazil
Prior art keywords
spectrum
coding
unit
residual
suppression
Prior art date
Application number
BR112013005683A
Other languages
English (en)
Inventor
Oshikiri Masahiro
Kawashima Takuya
Original Assignee
Panasonic Corp
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 Panasonic Corp filed Critical Panasonic Corp
Publication of BR112013005683A2 publication Critical patent/BR112013005683A2/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
    • G10L19/02—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
    • 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
    • G10L19/16—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
    • 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
    • G10L19/0212—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 using orthogonal transformation
    • 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
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding

Landscapes

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

Abstract

aparelho codificador e método de codificação. a presente invenção refere-se a um aparelho codificador que pode suprimir a degradação de qualidade de processos de codificação. uma unidade de limitação de candidatos de seleção final (109) usa o espectro de um sinal de entrada e um espectro residual para designar um dado número de fatores de supressão pré-selecionados para uma unidade de supressão de componente celp (104). a unidade de supressão de componente celp (104) usa os fatores de supressão designados para gerar um espectro suprimido; uma unidade de cálculo de espectro de sinal residual celp (105), na qual o espectro suprimido é introduzido, calcula um espectro residual; uma unidade de codificação de conversão (110) usa o espectro residual para executar um segundo processo de codificação; e uma unidade de avaliação de distorção (112) determina um dos fatores de supressão designados pelo uso do espectro de um segundo sinal decodificado gerado ao decodificar um segundo código obtido pelo segundo processo de codificação e adicionalmente pelo uso do espectro suprimido e o espectro do sinal de entrada.
BR112013005683A 2010-09-10 2011-09-05 aparelho codificador e método de codificação BR112013005683A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010203657 2010-09-10
PCT/JP2011/004960 WO2012032759A1 (ja) 2010-09-10 2011-09-05 符号化装置及び符号化方法

Publications (1)

Publication Number Publication Date
BR112013005683A2 true BR112013005683A2 (pt) 2018-01-23

Family

ID=45810369

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112013005683A BR112013005683A2 (pt) 2010-09-10 2011-09-05 aparelho codificador e método de codificação

Country Status (10)

Country Link
US (1) US9361892B2 (pt)
JP (1) JP5679470B2 (pt)
KR (1) KR20130108281A (pt)
CN (1) CN103069483B (pt)
AU (1) AU2011300248B2 (pt)
BR (1) BR112013005683A2 (pt)
RU (1) RU2013110317A (pt)
SG (1) SG188413A1 (pt)
TW (1) TW201218188A (pt)
WO (1) WO2012032759A1 (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2581904B1 (en) * 2010-06-11 2015-10-07 Panasonic Intellectual Property Corporation of America Audio (de)coding apparatus and method
EP2733699B1 (en) * 2011-10-07 2017-09-06 Panasonic Intellectual Property Corporation of America Scalable audio encoding device and scalable audio encoding method
US8914515B2 (en) * 2011-10-28 2014-12-16 International Business Machines Corporation Cloud optimization using workload analysis
CA2899013C (en) 2013-01-29 2017-11-07 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Apparatus and method for selecting one of a first audio encoding algorithm and a second audio encoding algorithm
CN105493182B (zh) * 2013-08-28 2020-01-21 杜比实验室特许公司 混合波形编码和参数编码语音增强
US9911427B2 (en) * 2014-03-24 2018-03-06 Nippon Telegraph And Telephone Corporation Gain adjustment coding for audio encoder by periodicity-based and non-periodicity-based encoding methods
CN107851442B (zh) * 2015-04-13 2021-07-20 日本电信电话株式会社 匹配装置、判定装置、它们的方法、程序及记录介质
US10325588B2 (en) * 2017-09-28 2019-06-18 International Business Machines Corporation Acoustic feature extractor selected according to status flag of frame of acoustic signal

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6263312B1 (en) * 1997-10-03 2001-07-17 Alaris, Inc. Audio compression and decompression employing subband decomposition of residual signal and distortion reduction
BRPI0612579A2 (pt) * 2005-06-17 2012-01-03 Matsushita Electric Ind Co Ltd pàs-filtro, decodificador e mÉtodo de pàs-filtraÇço
US8396717B2 (en) * 2005-09-30 2013-03-12 Panasonic Corporation Speech encoding apparatus and speech encoding method
KR20080047443A (ko) * 2005-10-14 2008-05-28 마츠시타 덴끼 산교 가부시키가이샤 변환 부호화 장치 및 변환 부호화 방법
JPWO2008072733A1 (ja) * 2006-12-15 2010-04-02 パナソニック株式会社 符号化装置および符号化方法
JP5294713B2 (ja) * 2007-03-02 2013-09-18 パナソニック株式会社 符号化装置、復号装置およびそれらの方法
JP4708446B2 (ja) 2007-03-02 2011-06-22 パナソニック株式会社 符号化装置、復号装置およびそれらの方法
JP4633774B2 (ja) * 2007-10-05 2011-02-16 日本電信電話株式会社 多重ベクトル量子化方法、装置、プログラム及びその記録媒体
US8209190B2 (en) 2007-10-25 2012-06-26 Motorola Mobility, Inc. Method and apparatus for generating an enhancement layer within an audio coding system
JP5483051B2 (ja) 2009-03-03 2014-05-07 学校法人金沢工業大学 住宅換気システム

Also Published As

Publication number Publication date
CN103069483B (zh) 2014-10-22
SG188413A1 (en) 2013-04-30
JP5679470B2 (ja) 2015-03-04
KR20130108281A (ko) 2013-10-02
AU2011300248B2 (en) 2014-05-15
TW201218188A (en) 2012-05-01
JPWO2012032759A1 (ja) 2014-01-20
CN103069483A (zh) 2013-04-24
WO2012032759A1 (ja) 2012-03-15
US9361892B2 (en) 2016-06-07
RU2013110317A (ru) 2014-10-20
AU2011300248A1 (en) 2013-03-28
US20130166308A1 (en) 2013-06-27

Similar Documents

Publication Publication Date Title
BR112013005683A2 (pt) aparelho codificador e método de codificação
AR123837A2 (es) Codificador de audio para la codificación de una señal de múltiples canales, un decodificador de audio para la decodificación de una señal de audio codificada, métodos y programa de computación
BR112019006756A2 (pt) precisão de vetor de movimento adaptativo para codificação de vídeo
AR115901A2 (es) Énfasis de bajas frecuencias para codificación basada en lpc (codificación de predicción lineal) en el dominio de frecuencia
BR112017000629A2 (pt) aparelho de codificação de sinal de áudio, aparelho de decodificação de sinal de áudio, método de codificação de sinal de áudio, e método de decodificação de sinal de áudio
BR112013022672A2 (pt) aparelho e método de processamento de imagem
BR112021024111A2 (pt) Determinação de antidepressivos por espetrometria de massa
BR112013031624A2 (pt) método de decodificação de imagem, método de codificação de imagem, aparelho de decodificação de imagem, aparelho de codificação de imagem, e aparelho de codificação e decodificação de imagem
BR112014017500A8 (pt) método para codificar e decodificar matriz quantizada e aparelho usando o mesmo
AR109391A1 (es) Aparato y método para codificar una señal de audio usando un valor de compensación
BR112016021142A8 (pt) parâmetros de quantização para codificação com conversão no espaço de cores
RU2013142349A (ru) Декодер речи, кодер речи, способ декодирования речи, способ кодирования речи, программа декодирования речи и программа кодирования речи
RU2015149810A (ru) Устройство и способ выбора одного из первого алгоритма кодирования и второго алгоритма кодирования с использованием уменьшения гармоник
AR089772A1 (es) Aparato y metodo para la codificacion y decodificacion de audio que emplea sustitucion sinusoidal
RU2013158190A (ru) Способ кодирования видеоизображений, способ декодирования видеоизображений, устройство кодирования видеоизображений, устройство декодирования видеоизображений и устройство кодирования-декодирования видеоизображений
MY169635A (en) Image coding method, image decoding method, image coding apparatus, image decoding apparatus, and image coding and decoding apparatus
BR112014000374A8 (pt) Método de codificação de imagem, dispositivo de codificação de imagem, método de decodificação de imagem, dispositivo de decodificação de imagem e dispositivo de codificação e decodificação de imagem
ATE537537T1 (de) Signalkomprimierungsverfahren und -vorrichtung
HRP20230094T1 (hr) Ponovno odabiranje audio signala za kodiranje / dekodiranje s malim kašnjenjem
BR112012032746A2 (pt) dispositivo de descodificação, dispositivo de codificação, e métodos para os mesmos.
RU2017134620A (ru) Аудиокодер, аудиодекодер, способ кодирования аудиосигнала и способ декодирования кодированного аудиосигнала
BR112015015600A2 (pt) provisão de informação de precisão em um dispositivo de codificação de imagem, método e programa de codificação de imagem, dispositivo de decodificação de imagem e método e programa de decodificação de imagem
AR099616A1 (es) Concepto para la codificación de información
RU2017117896A (ru) Кодирование и декодирование аудиосигналов
IN2014CN00678A (pt)

Legal Events

Date Code Title Description
B08F Application fees: application dismissed [chapter 8.6 patent gazette]
B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]