BRPI0507207A - equipamento e método para o processamento de um sinal multicanais - Google Patents

equipamento e método para o processamento de um sinal multicanais

Info

Publication number
BRPI0507207A
BRPI0507207A BRPI0507207-7A BRPI0507207A BRPI0507207A BR PI0507207 A BRPI0507207 A BR PI0507207A BR PI0507207 A BRPI0507207 A BR PI0507207A BR PI0507207 A BRPI0507207 A BR PI0507207A
Authority
BR
Brazil
Prior art keywords
channel signal
channels
prediction
equipment
signal processing
Prior art date
Application number
BRPI0507207-7A
Other languages
English (en)
Inventor
Juergen Herre
Michael Schug
Alexandre Gr Schel
Original Assignee
Fraunhofer Ges Suz F Rderung D
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 Fraunhofer Ges Suz F Rderung D filed Critical Fraunhofer Ges Suz F Rderung D
Publication of BRPI0507207A publication Critical patent/BRPI0507207A/pt
Publication of BRPI0507207A8 publication Critical patent/BRPI0507207A8/pt
Publication of BRPI0507207B1 publication Critical patent/BRPI0507207B1/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
    • G10L19/03—Spectral prediction for preventing pre-echo; Temporary noise shaping [TNS], e.g. in MPEG2 or MPEG4
    • 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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • 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

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)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Stereophonic System (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Color Image Communication Systems (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Detergent Compositions (AREA)
  • Radio Relay Systems (AREA)

Abstract

EQUIPAMENTO E MéTODO PARA O PROCESSAMENTO DE UM SINAL MULTICANAIS. O equipamento para o processamento de um sinal multicanais inclui um meio (12) para a determinação de uma similaridade entre um primeiro de dois canais e um segundo dos dois canais. Além disso, é provido o meio (16) para uma realização de uma filtração de predição dos coeficientes espectrais, que é formado para realizar uma filtração de predição com somente um único filtro de predição (16a) para ambos canais no caso de alta similaridade entre o primeiro e o segundo canais, e para realizar uma filtração de predição com dois filtros de predição em separado (16b) no caso de uma dissimilaridade entre o primeiro e o segundo canais. Com isso, são evitadas uma introdução de problemas estéreo e uma deterioração do ganho de codificação nas técnicas de codificação estéreo.
BRPI0507207A 2004-03-01 2005-02-28 equipamento e método para o processamento de um sinal multicanais BRPI0507207B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004009954A DE102004009954B4 (de) 2004-03-01 2004-03-01 Vorrichtung und Verfahren zum Verarbeiten eines Multikanalsignals
PCT/EP2005/002110 WO2005083678A1 (de) 2004-03-01 2005-02-28 Vorrichtung und verfahren zum verarbeiten eines multikanalsignals

Publications (3)

Publication Number Publication Date
BRPI0507207A true BRPI0507207A (pt) 2007-06-12
BRPI0507207A8 BRPI0507207A8 (pt) 2018-06-12
BRPI0507207B1 BRPI0507207B1 (pt) 2018-12-26

Family

ID=34894904

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0507207A BRPI0507207B1 (pt) 2004-03-01 2005-02-28 equipamento e método para o processamento de um sinal multicanais

Country Status (18)

Country Link
US (1) US7340391B2 (pt)
EP (1) EP1697930B1 (pt)
JP (1) JP4413257B2 (pt)
KR (1) KR100823097B1 (pt)
CN (1) CN1926608B (pt)
AT (1) ATE364882T1 (pt)
AU (1) AU2005217517B2 (pt)
BR (1) BRPI0507207B1 (pt)
CA (1) CA2558161C (pt)
DE (2) DE102004009954B4 (pt)
DK (1) DK1697930T3 (pt)
ES (1) ES2286798T3 (pt)
HK (1) HK1095194A1 (pt)
IL (1) IL177213A (pt)
NO (1) NO339114B1 (pt)
PT (1) PT1697930E (pt)
RU (1) RU2332727C2 (pt)
WO (1) WO2005083678A1 (pt)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7725324B2 (en) * 2003-12-19 2010-05-25 Telefonaktiebolaget Lm Ericsson (Publ) Constrained filter encoding of polyphonic signals
US7809579B2 (en) * 2003-12-19 2010-10-05 Telefonaktiebolaget Lm Ericsson (Publ) Fidelity-optimized variable frame length encoding
US9626973B2 (en) * 2005-02-23 2017-04-18 Telefonaktiebolaget L M Ericsson (Publ) Adaptive bit allocation for multi-channel audio encoding
KR100718416B1 (ko) 2006-06-28 2007-05-14 주식회사 대우일렉트로닉스 예측필터를 이용한 채널간 스테레오 오디오 코딩 방법
JP4940888B2 (ja) * 2006-10-23 2012-05-30 ソニー株式会社 オーディオ信号伸張圧縮装置及び方法
KR20080053739A (ko) * 2006-12-11 2008-06-16 삼성전자주식회사 적응적으로 윈도우 크기를 적용하는 부호화 장치 및 방법
WO2008090970A1 (ja) * 2007-01-26 2008-07-31 Panasonic Corporation ステレオ符号化装置、ステレオ復号装置、およびこれらの方法
US7991622B2 (en) * 2007-03-20 2011-08-02 Microsoft Corporation Audio compression and decompression using integer-reversible modulated lapped transforms
US8086465B2 (en) 2007-03-20 2011-12-27 Microsoft Corporation Transform domain transcoding and decoding of audio data using integer-reversible modulated lapped transforms
BRPI0809940A2 (pt) * 2007-03-30 2014-10-07 Panasonic Corp Dispositivo de codificação e método de codificação
CN101067931B (zh) * 2007-05-10 2011-04-20 芯晟(北京)科技有限公司 一种高效可配置的频域参数立体声及多声道编解码方法与系统
CN101981616A (zh) * 2008-04-04 2011-02-23 松下电器产业株式会社 立体声信号变换装置、立体声信号逆变换装置及其方法
CN101770776B (zh) 2008-12-29 2011-06-08 华为技术有限公司 瞬态信号的编码方法和装置、解码方法和装置及处理系统
ES2400661T3 (es) * 2009-06-29 2013-04-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Codificación y decodificación de extensión de ancho de banda
PL3779975T3 (pl) * 2010-04-13 2023-12-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Dekoder audio i powiązane sposoby przetwarzania wielokanałowych sygnałów audio stereo z wykorzystaniem zmiennego kierunku predykcji
EP2707873B1 (en) * 2011-05-09 2015-04-08 Dolby International AB Method and encoder for processing a digital stereo audio signal
CN104269173B (zh) * 2014-09-30 2018-03-13 武汉大学深圳研究院 切换模式的音频带宽扩展装置与方法
RU2763374C2 (ru) 2015-09-25 2021-12-28 Войсэйдж Корпорейшн Способ и система с использованием разности долговременных корреляций между левым и правым каналами для понижающего микширования во временной области стереофонического звукового сигнала в первичный и вторичный каналы
CN107659888A (zh) * 2017-08-21 2018-02-02 广州酷狗计算机科技有限公司 识别伪立体声音频的方法、装置及存储介质
WO2019091573A1 (en) 2017-11-10 2019-05-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for encoding and decoding an audio signal using downsampling or interpolation of scale parameters
EP3483884A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Signal filtering
EP3483880A1 (en) * 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Temporal noise shaping
EP3483879A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Analysis/synthesis windowing function for modulated lapped transformation
WO2019091576A1 (en) 2017-11-10 2019-05-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoders, audio decoders, methods and computer programs adapting an encoding and decoding of least significant bits
EP3483878A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio decoder supporting a set of different loss concealment tools
EP3483882A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Controlling bandwidth in encoders and/or decoders
EP3483886A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Selecting pitch lag
EP3483883A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio coding and decoding with selective postfiltering
CN108962268B (zh) * 2018-07-26 2020-11-03 广州酷狗计算机科技有限公司 确定单声道的音频的方法和装置
CN112151045A (zh) 2019-06-29 2020-12-29 华为技术有限公司 一种立体声编码方法、立体声解码方法和装置
CN111654745B (zh) * 2020-06-08 2022-10-14 海信视像科技股份有限公司 多声道的信号处理方法及显示设备
CN112053669B (zh) * 2020-08-27 2023-10-27 海信视像科技股份有限公司 一种人声消除方法、装置、设备及介质

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5488665A (en) * 1993-11-23 1996-01-30 At&T Corp. Multi-channel perceptual audio compression system with encoding mode switching among matrixed channels
US5812971A (en) * 1996-03-22 1998-09-22 Lucent Technologies Inc. Enhanced joint stereo coding method using temporal envelope shaping
US5913187A (en) * 1997-08-29 1999-06-15 Nortel Networks Corporation Nonlinear filter for noise suppression in linear prediction speech processing devices
DE19747132C2 (de) * 1997-10-24 2002-11-28 Fraunhofer Ges Forschung Verfahren und Vorrichtungen zum Codieren von Audiosignalen sowie Verfahren und Vorrichtungen zum Decodieren eines Bitstroms
DE19829284C2 (de) * 1998-05-15 2000-03-16 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Verarbeiten eines zeitlichen Stereosignals und Verfahren und Vorrichtung zum Decodieren eines unter Verwendung einer Prädiktion über der Frequenz codierten Audiobitstroms
US6771723B1 (en) * 2000-07-14 2004-08-03 Dennis W. Davis Normalized parametric adaptive matched filter receiver
US6622117B2 (en) * 2001-05-14 2003-09-16 International Business Machines Corporation EM algorithm for convolutive independent component analysis (CICA)
KR100443405B1 (ko) * 2001-07-05 2004-08-09 주식회사 이머시스 멀티채널 스피커용 오디오 신호를 멀티 채널 헤드폰용 오디오 신호로 변환하여 재분배 하는 장치
GB0124352D0 (en) * 2001-10-11 2001-11-28 1 Ltd Signal processing device for acoustic transducer array
ATE459957T1 (de) * 2002-04-10 2010-03-15 Koninkl Philips Electronics Nv Kodierung und dekodierung für mehrkanalige signale
JP2007009804A (ja) * 2005-06-30 2007-01-18 Tohoku Electric Power Co Inc 風力発電施設の出力電力制御スケジュールシステム
JP2007095002A (ja) * 2005-09-30 2007-04-12 Noritsu Koki Co Ltd 写真処理装置

Also Published As

Publication number Publication date
DE102004009954A1 (de) 2005-09-29
IL177213A (en) 2011-10-31
WO2005083678A1 (de) 2005-09-09
RU2006134641A (ru) 2008-04-10
HK1095194A1 (en) 2007-04-27
RU2332727C2 (ru) 2008-08-27
KR20060121982A (ko) 2006-11-29
EP1697930B1 (de) 2007-06-13
DE102004009954B4 (de) 2005-12-15
US20070033056A1 (en) 2007-02-08
BRPI0507207A8 (pt) 2018-06-12
JP4413257B2 (ja) 2010-02-10
CN1926608B (zh) 2010-05-05
AU2005217517A1 (en) 2005-09-09
ATE364882T1 (de) 2007-07-15
US7340391B2 (en) 2008-03-04
BRPI0507207B1 (pt) 2018-12-26
ES2286798T3 (es) 2007-12-01
PT1697930E (pt) 2007-09-25
DK1697930T3 (da) 2007-10-08
AU2005217517B2 (en) 2008-06-26
JP2007525718A (ja) 2007-09-06
KR100823097B1 (ko) 2008-04-18
CN1926608A (zh) 2007-03-07
NO339114B1 (no) 2016-11-14
NO20064431L (no) 2006-09-29
DE502005000864D1 (de) 2007-07-26
IL177213A0 (en) 2006-12-10
EP1697930A1 (de) 2006-09-06
CA2558161A1 (en) 2005-09-09
CA2558161C (en) 2010-05-11

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Legal Events

Date Code Title Description
B06T Formal requirements before examination [chapter 6.20 patent gazette]
B15K Others concerning applications: alteration of classification

Ipc: G10L 19/008 (2013.01), G10L 19/03 (2013.01)

B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 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 26/12/2018, OBSERVADAS AS CONDICOES LEGAIS.