[go: up one dir, main page]

MX2007000391A - Conversion de canal de audio. - Google Patents

Conversion de canal de audio.

Info

Publication number
MX2007000391A
MX2007000391A MX2007000391A MX2007000391A MX2007000391A MX 2007000391 A MX2007000391 A MX 2007000391A MX 2007000391 A MX2007000391 A MX 2007000391A MX 2007000391 A MX2007000391 A MX 2007000391A MX 2007000391 A MX2007000391 A MX 2007000391A
Authority
MX
Mexico
Prior art keywords
audio channels
channels
input audio
audio channel
channel conversion
Prior art date
Application number
MX2007000391A
Other languages
English (en)
Inventor
Erik G P Schuijers
Dirk J Breebaart
Heiko Purnhagen
Karl J Roden
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of MX2007000391A publication Critical patent/MX2007000391A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H04S5/005—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation  of the pseudo five- or more-channel type, e.g. virtual surround
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Physics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Stereophonic System (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Fats And Perfumes (AREA)
  • Stereo-Broadcasting Methods (AREA)

Abstract

Un dispositivo (1) que convierte un primer numero (M) de canales de audio de entrada en un segundo numero mas grande (N) de canales de audio de salida comprende: las unidades de decorrelacion (3) que descomponen los canales de audio de entrada en un conjunto de canales auxiliares decorrelacionados, al menos una unidad de mezclado ascendente (4) que combina los canales auxiliares decorrelacionados en los canales de audio de salida, y al menos una unidad de procesamiento previo (2) que procesa con anticipacion los canales de audio de entrada y alimenta los canales de audio de entrada previamente procesados a las unidades de decorrelacion (3). La unidad de procesamiento previo (2) y la unidad de mezclado ascendente (2) se prefiere que sean controladas a traves de parametros de audio.
MX2007000391A 2004-07-14 2005-07-11 Conversion de canal de audio. MX2007000391A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04103370 2004-07-14
EP05103072 2005-04-18
PCT/IB2005/052293 WO2006008697A1 (en) 2004-07-14 2005-07-11 Audio channel conversion

Publications (1)

Publication Number Publication Date
MX2007000391A true MX2007000391A (es) 2007-06-25

Family

ID=34980157

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2007000391A MX2007000391A (es) 2004-07-14 2005-07-11 Conversion de canal de audio.

Country Status (13)

Country Link
US (1) US8793125B2 (es)
EP (1) EP1769491B1 (es)
JP (1) JP4989468B2 (es)
KR (2) KR101283525B1 (es)
CN (1) CN101014998B (es)
AT (1) ATE444549T1 (es)
BR (1) BRPI0513255B1 (es)
DE (1) DE602005016931D1 (es)
ES (1) ES2333137T3 (es)
MX (1) MX2007000391A (es)
PL (1) PL1769491T3 (es)
RU (1) RU2391714C2 (es)
WO (1) WO2006008697A1 (es)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI497485B (zh) * 2004-08-25 2015-08-21 Dolby Lab Licensing Corp 用以重塑經合成輸出音訊信號之時域包絡以更接近輸入音訊信號之時域包絡的方法
TWI393121B (zh) * 2004-08-25 2013-04-11 杜比實驗室特許公司 處理一組n個聲音信號之方法與裝置及與其相關聯之電腦程式
KR100682904B1 (ko) * 2004-12-01 2007-02-15 삼성전자주식회사 공간 정보를 이용한 다채널 오디오 신호 처리 장치 및 방법
KR100888474B1 (ko) * 2005-11-21 2009-03-12 삼성전자주식회사 멀티채널 오디오 신호의 부호화/복호화 장치 및 방법
KR101218776B1 (ko) 2006-01-11 2013-01-18 삼성전자주식회사 다운믹스된 신호로부터 멀티채널 신호 생성방법 및 그 기록매체
US8619998B2 (en) * 2006-08-07 2013-12-31 Creative Technology Ltd Spatial audio enhancement processing method and apparatus
EP2070392A2 (en) * 2006-09-14 2009-06-17 Koninklijke Philips Electronics N.V. Sweet spot manipulation for a multi-channel signal
KR101100223B1 (ko) 2006-12-07 2011-12-28 엘지전자 주식회사 오디오 처리 방법 및 장치
JP5213339B2 (ja) * 2007-03-12 2013-06-19 アルパイン株式会社 オーディオ装置
US8908873B2 (en) 2007-03-21 2014-12-09 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Method and apparatus for conversion between multi-channel audio formats
US9015051B2 (en) 2007-03-21 2015-04-21 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Reconstruction of audio channels with direction parameters indicating direction of origin
US8290167B2 (en) 2007-03-21 2012-10-16 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Method and apparatus for conversion between multi-channel audio formats
DE102007018032B4 (de) * 2007-04-17 2010-11-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Erzeugung dekorrelierter Signale
KR101464977B1 (ko) * 2007-10-01 2014-11-25 삼성전자주식회사 메모리 관리 방법, 및 멀티 채널 데이터의 복호화 방법 및장치
KR101366997B1 (ko) 2008-07-31 2014-02-24 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 바이노럴 신호를 위한 신호생성
EP2154911A1 (en) 2008-08-13 2010-02-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. An apparatus for determining a spatial output multi-channel audio signal
US20120045065A1 (en) * 2009-04-17 2012-02-23 Pioneer Corporation Surround signal generating device, surround signal generating method and surround signal generating program
US20120076307A1 (en) * 2009-06-05 2012-03-29 Koninklijke Philips Electronics N.V. Processing of audio channels
KR20120004909A (ko) * 2010-07-07 2012-01-13 삼성전자주식회사 입체 음향 재생 방법 및 장치
JP6133413B2 (ja) 2012-06-14 2017-05-24 ドルビー・インターナショナル・アーベー マルチチャネル・オーディオのためのなめらかな構成切り換え
WO2014126689A1 (en) * 2013-02-14 2014-08-21 Dolby Laboratories Licensing Corporation Methods for controlling the inter-channel coherence of upmixed audio signals
TWI618051B (zh) 2013-02-14 2018-03-11 杜比實驗室特許公司 用於利用估計之空間參數的音頻訊號增強的音頻訊號處理方法及裝置
TWI618050B (zh) 2013-02-14 2018-03-11 杜比實驗室特許公司 用於音訊處理系統中之訊號去相關的方法及設備
WO2014126688A1 (en) 2013-02-14 2014-08-21 Dolby Laboratories Licensing Corporation Methods for audio signal transient detection and decorrelation control
US9679571B2 (en) 2013-04-10 2017-06-13 Electronics And Telecommunications Research Institute Encoder and encoding method for multi-channel signal, and decoder and decoding method for multi-channel signal
BR112015028914B1 (pt) * 2013-05-24 2021-12-07 Dolby International Ab Método e aparelho para reconstruir um bloco de tempo/frequência de objetos de áudio n, método e codificador para gerar pelo menos um parâmetro de ponderação, e meio legível por computador
EP4123643B1 (en) 2015-03-03 2024-06-19 Dolby Laboratories Licensing Corporation Enhancement of spatial audio signals by modulated decorrelation
JP6412292B2 (ja) * 2016-01-22 2018-10-24 フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン スペクトルドメイン・リサンプリングを用いて多チャネル信号を符号化又は復号化する装置及び方法
US9820073B1 (en) 2017-05-10 2017-11-14 Tls Corp. Extracting a common signal from multiple audio signals
GB2569214B (en) 2017-10-13 2021-11-24 Dolby Laboratories Licensing Corp Systems and methods for providing an immersive listening experience in a limited area using a rear sound bar
CN112261545A (zh) * 2019-07-22 2021-01-22 海信视像科技股份有限公司 显示装置
US11523239B2 (en) 2019-07-22 2022-12-06 Hisense Visual Technology Co., Ltd. Display apparatus and method for processing audio
DE112021007479T5 (de) * 2021-06-22 2024-03-21 Fanuc Corporation Spracherkennungsvorrichtung

Family Cites Families (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE21353T1 (de) * 1982-09-29 1986-08-15 Imc Acrylguss Gmbh Verfahren zum herstellen von verbundglas.
JPS6344600A (ja) 1986-08-12 1988-02-25 Tosoh Corp グロビンの製造法
JPH057840Y2 (es) * 1986-09-10 1993-02-26
US5222059A (en) * 1988-01-06 1993-06-22 Lucasfilm Ltd. Surround-sound system with motion picture soundtrack timbre correction, surround sound channel timbre correction, defined loudspeaker directionality, and reduced comb-filter effects
US5119422A (en) * 1990-10-01 1992-06-02 Price David A Optimal sonic separator and multi-channel forward imaging system
US5136650A (en) * 1991-01-09 1992-08-04 Lexicon, Inc. Sound reproduction
JPH0772906B2 (ja) 1991-07-10 1995-08-02 富士ゼロックス株式会社 文書認識装置
DE4236989C2 (de) 1992-11-02 1994-11-17 Fraunhofer Ges Forschung Verfahren zur Übertragung und/oder Speicherung digitaler Signale mehrerer Kanäle
DE4409368A1 (de) 1994-03-18 1995-09-21 Fraunhofer Ges Forschung Verfahren zum Codieren mehrerer Audiosignale
JP2953347B2 (ja) * 1995-06-06 1999-09-27 日本ビクター株式会社 サラウンド信号処理装置
US5844993A (en) 1995-01-25 1998-12-01 Victor Company Of Japan, Ltd. Surround signal processing apparatus
US5812971A (en) 1996-03-22 1998-09-22 Lucent Technologies Inc. Enhanced joint stereo coding method using temporal envelope shaping
US5796844A (en) * 1996-07-19 1998-08-18 Lexicon Multichannel active matrix sound reproduction with maximum lateral separation
US5870480A (en) * 1996-07-19 1999-02-09 Lexicon Multichannel active matrix encoder and decoder with maximum lateral separation
US5917917A (en) * 1996-09-13 1999-06-29 Crystal Semiconductor Corporation Reduced-memory reverberation simulator in a sound synthesizer
US6711266B1 (en) 1997-02-07 2004-03-23 Bose Corporation Surround sound channel encoding and decoding
AU5109899A (en) 1998-07-17 2000-02-07 Lucasfilm Ltd. Multi-channel audio surround system
US6539357B1 (en) * 1999-04-29 2003-03-25 Agere Systems Inc. Technique for parametric coding of a signal containing information
US7149313B1 (en) * 1999-05-17 2006-12-12 Bose Corporation Audio signal processing
EP1054575A3 (en) * 1999-05-17 2002-09-18 Bose Corporation Directional decoding
US7382888B2 (en) * 2000-12-12 2008-06-03 Bose Corporation Phase shifting audio signal combining
US7292901B2 (en) * 2002-06-24 2007-11-06 Agere Systems Inc. Hybrid multi-channel/cue coding/decoding of audio signals
US7583805B2 (en) * 2004-02-12 2009-09-01 Agere Systems Inc. Late reverberation-based synthesis of auditory scenes
US7006636B2 (en) 2002-05-24 2006-02-28 Agere Systems Inc. Coherence-based audio coding and synthesis
SE0202159D0 (sv) 2001-07-10 2002-07-09 Coding Technologies Sweden Ab Efficientand scalable parametric stereo coding for low bitrate applications
WO2003090206A1 (en) 2002-04-22 2003-10-30 Koninklijke Philips Electronics N.V. Signal synthesizing
US7391869B2 (en) * 2002-05-03 2008-06-24 Harman International Industries, Incorporated Base management systems
US7450727B2 (en) 2002-05-03 2008-11-11 Harman International Industries, Incorporated Multichannel downmixing device
US7443987B2 (en) * 2002-05-03 2008-10-28 Harman International Industries, Incorporated Discrete surround audio system for home and automotive listening
ATE377339T1 (de) * 2002-07-12 2007-11-15 Koninkl Philips Electronics Nv Audio-kodierung
US7299190B2 (en) 2002-09-04 2007-11-20 Microsoft Corporation Quantization and inverse quantization for audio
US7181019B2 (en) * 2003-02-11 2007-02-20 Koninklijke Philips Electronics N. V. Audio coding
CN1761998B (zh) * 2003-03-17 2010-09-08 皇家飞利浦电子股份有限公司 用于生成单声道信号的方法、部件、音频编码器和系统
US7412380B1 (en) * 2003-12-17 2008-08-12 Creative Technology Ltd. Ambience extraction and modification for enhancement and upmix of audio signals
US7394903B2 (en) 2004-01-20 2008-07-01 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Apparatus and method for constructing a multi-channel output signal or for generating a downmix signal
US7460990B2 (en) * 2004-01-23 2008-12-02 Microsoft Corporation Efficient coding of digital media spectral data using wide-sense perceptual similarity
CN1922654A (zh) * 2004-02-17 2007-02-28 皇家飞利浦电子股份有限公司 音频分发系统、音频编码器、音频解码器及其操作方法
CA3026267C (en) 2004-03-01 2019-04-16 Dolby Laboratories Licensing Corporation Reconstructing audio signals with multiple decorrelation techniques and differentially coded parameters
US7805313B2 (en) * 2004-03-04 2010-09-28 Agere Systems Inc. Frequency-based coding of channels in parametric multi-channel coding systems
KR101158698B1 (ko) * 2004-04-05 2012-06-22 코닌클리케 필립스 일렉트로닉스 엔.브이. 복수-채널 인코더, 입력 신호를 인코딩하는 방법, 저장 매체, 및 인코딩된 출력 데이터를 디코딩하도록 작동하는 디코더
SE0400998D0 (sv) * 2004-04-16 2004-04-16 Cooding Technologies Sweden Ab Method for representing multi-channel audio signals
CN1985544B (zh) * 2004-07-14 2010-10-13 皇家飞利浦电子股份有限公司 处理立体声下混合信号的方法、装置、编译码器和系统
US7508947B2 (en) * 2004-08-03 2009-03-24 Dolby Laboratories Licensing Corporation Method for combining audio signals using auditory scene analysis
SE0402649D0 (sv) * 2004-11-02 2004-11-02 Coding Tech Ab Advanced methods of creating orthogonal signals
SE0402650D0 (sv) * 2004-11-02 2004-11-02 Coding Tech Ab Improved parametric stereo compatible coding of spatial audio
SE0402652D0 (sv) * 2004-11-02 2004-11-02 Coding Tech Ab Methods for improved performance of prediction based multi- channel reconstruction
US7809580B2 (en) * 2004-11-04 2010-10-05 Koninklijke Philips Electronics N.V. Encoding and decoding of multi-channel audio signals
WO2006103584A1 (en) * 2005-03-30 2006-10-05 Koninklijke Philips Electronics N.V. Multi-channel audio coding
US7983922B2 (en) * 2005-04-15 2011-07-19 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating multi-channel synthesizer control signal and apparatus and method for multi-channel synthesizing
US7974713B2 (en) * 2005-10-12 2011-07-05 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Temporal and spatial shaping of multi-channel audio signals
EP1952392B1 (en) * 2005-10-20 2016-07-20 LG Electronics Inc. Method, apparatus and computer-readable recording medium for decoding a multi-channel audio signal
AU2008243406B2 (en) * 2007-04-26 2011-08-25 Dolby International Ab Apparatus and method for synthesizing an output signal
TWI516138B (zh) * 2010-08-24 2016-01-01 杜比國際公司 從二聲道音頻訊號決定參數式立體聲參數之系統與方法及其電腦程式產品

Also Published As

Publication number Publication date
EP1769491A1 (en) 2007-04-04
WO2006008697A8 (en) 2007-03-15
CN101014998B (zh) 2011-02-23
US20080091436A1 (en) 2008-04-17
CN101014998A (zh) 2007-08-08
BRPI0513255B1 (pt) 2019-06-25
ES2333137T3 (es) 2010-02-17
JP4989468B2 (ja) 2012-08-01
RU2007105501A (ru) 2008-08-20
KR101205480B1 (ko) 2012-11-28
ATE444549T1 (de) 2009-10-15
WO2006008697A1 (en) 2006-01-26
DE602005016931D1 (de) 2009-11-12
KR20070042145A (ko) 2007-04-20
PL1769491T3 (pl) 2010-03-31
JP2008507184A (ja) 2008-03-06
RU2391714C2 (ru) 2010-06-10
EP1769491B1 (en) 2009-09-30
KR20120099287A (ko) 2012-09-07
BRPI0513255A (pt) 2008-04-29
KR101283525B1 (ko) 2013-07-15
US8793125B2 (en) 2014-07-29

Similar Documents

Publication Publication Date Title
PL1769491T3 (pl) Przekształcanie kanałów audio
MY143234A (en) Enhanced method for signal shaping in multi-channel audio reconstruction
DE60225806D1 (en) Audiokanalübersetzung
TW200617884A (en) Apparatus and method for generating a multi-channel output signal
WO2002047464A3 (en) Nested compact fuel processor for producing hydrogen rich gas
WO2009045652A3 (en) Biomass treatment apparatus
AU2003296981A1 (en) Techniques for disambiguating speech input using multimodal interfaces
GB0310609D0 (en) Noise eliminating system on chip and method of making same
NO20083188L (no) Anordning og fremgangsmate for syntetisering av tre utgangskanaler ved anvendelse av to inngangskanaler
EP1471699A3 (en) Frame processing
SE0003284D0 (sv) Kodare
WO2006102613A3 (en) Digital remote device management system for selectively operating a plurality of remote devices
GB2440878A (en) Nibble de-skew method,apparatus and system
EP2046066A8 (en) Image generation unit with four primary colors
EP1686700A3 (en) Multiple input and multiple output communication apparatus and channel scanning method thereof
AU2003295870A8 (en) Membrane for fuel cell, and fuel cell incorporating that membrane
UA87813C2 (ru) Система контролируемого высвобождения темозоломида
TW200715819A (en) Automatic document feeder
EP1635557A3 (en) Image switching apparatus and image switching method
ATE393494T1 (de) Satelliten-verstärkervorrichtung
TW200511750A (en) Method for outer loop power control to comply with quality requirements of all transport channels within a coded composite transport channel
EP1686562A3 (en) Method and apparatus for encoding and decoding multi-channel signals
TW200723738A (en) Channel emulating device and channel emulating method
TW200701035A (en) System and method for inputting character
AU2003209576A1 (en) Implementation of wide multiplexers in reconfigurable logic

Legal Events

Date Code Title Description
FG Grant or registration
HC Change of company name or juridical status