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BRPI0806228A8 - Dispositivo de sintetização de fluxo, unidade de decodificação e método - Google Patents

Dispositivo de sintetização de fluxo, unidade de decodificação e método

Info

Publication number
BRPI0806228A8
BRPI0806228A8 BRPI0806228A BRPI0806228A BRPI0806228A8 BR PI0806228 A8 BRPI0806228 A8 BR PI0806228A8 BR PI0806228 A BRPI0806228 A BR PI0806228A BR PI0806228 A BRPI0806228 A BR PI0806228A BR PI0806228 A8 BRPI0806228 A8 BR PI0806228A8
Authority
BR
Brazil
Prior art keywords
signal
signals
extended
downmix
downmix acoustic
Prior art date
Application number
BRPI0806228A
Other languages
English (en)
Inventor
Ishikawa Tomokazu
Norimatsu Takeshi
Katayama Takashi
Original Assignee
Panasonic Ip Man 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 Panasonic Ip Man Co Ltd filed Critical Panasonic Ip Man Co Ltd
Publication of BRPI0806228A2 publication Critical patent/BRPI0806228A2/pt
Publication of BRPI0806228A8 publication Critical patent/BRPI0806228A8/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H04M3/568—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities audio processing specific to telephonic conferencing, e.g. spatial distribution, mixing of participants
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/70—Media network packetisation
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/12—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being prediction coefficients

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

DISPOSITIVO DE SINTETIZAÇÃO DE FLUXO, UNIDADE DE DECODIFICAÇÃO E MÉTODO. Prover uma atmosfera melhorada fiel à realidade melhorada desfrutada em uma conexão de multiponto, e reduzir uma carga de cálculo em uma unidade de conexão de multiponto, também. Um dispositivo de sintetização de fluxo inclui uma unidade de entrada a qual introduz pelo menos dois sinais codificados, cada um incluindo um primeiro sinal acústico de downmix e um sinal estendido, cada um dos primeiros sinais acústicos de downmix sendo obtido pela codificação de um sinal acústico no qual pelo menos dois sinais de som sofrem um downmix, e o sinal estendido sendo para a obtenção de pelo menos dois sinais de som do primeiro sinal acústico de downmix; uma unidade de geração de sinal codificado a qual gera: um segundo sinal acústico de downmix e um sinal estendido com base em cada um dos sinais codificados introduzidos pela unidade de entrada, o segundo sinal acústico de downmix sendo para a obtenção de cada um dos primeiros sinais acústicos de downmix, e o sinal estendido gerado sendo para a obtenção de cada um dos primeiros sinais acústicos de downmix do segundo sinal acústico de downmix; e a geração de um sinal codificado incluindo o segundo sinal acústico de downmix gerado, o sinal estendido gerado e cada um dos sinais estendidos incluídos no sinal codificado introduzido correspondente; e uma unidade de saída, a qual extrai o sinal codificado gerado.
BRPI0806228A 2007-10-16 2008-10-16 Dispositivo de sintetização de fluxo, unidade de decodificação e método BRPI0806228A8 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2007269127 2007-10-16
JP2007-269127 2007-10-16
JP2008-184666 2008-07-16
JP2008184666 2008-07-16
PCT/JP2008/002941 WO2009050896A1 (ja) 2007-10-16 2008-10-16 ストリーム合成装置、復号装置、方法

Publications (2)

Publication Number Publication Date
BRPI0806228A2 BRPI0806228A2 (pt) 2011-09-06
BRPI0806228A8 true BRPI0806228A8 (pt) 2016-11-29

Family

ID=40567182

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0806228A BRPI0806228A8 (pt) 2007-10-16 2008-10-16 Dispositivo de sintetização de fluxo, unidade de decodificação e método

Country Status (7)

Country Link
US (1) US8391513B2 (pt)
EP (1) EP2128856A4 (pt)
JP (2) JPWO2009050896A1 (pt)
CN (1) CN101578655B (pt)
BR (1) BRPI0806228A8 (pt)
RU (1) RU2473139C2 (pt)
WO (1) WO2009050896A1 (pt)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2154910A1 (en) 2008-08-13 2010-02-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus for merging spatial audio streams
KR101613975B1 (ko) * 2009-08-18 2016-05-02 삼성전자주식회사 멀티 채널 오디오 신호의 부호화 방법 및 장치, 그 복호화 방법 및 장치
CN102065265B (zh) * 2009-11-13 2012-10-17 华为终端有限公司 实现混音的方法、装置和系统
JP5977434B2 (ja) * 2012-04-05 2016-08-24 ホアウェイ・テクノロジーズ・カンパニー・リミテッド パラメトリック空間オーディオ符号化および復号化のための方法、パラメトリック空間オーディオ符号器およびパラメトリック空間オーディオ復号器
EP2898506B1 (en) 2012-09-21 2018-01-17 Dolby Laboratories Licensing Corporation Layered approach to spatial audio coding
WO2014085050A1 (en) 2012-11-27 2014-06-05 Dolby Laboratories Licensing Corporation Teleconferencing using monophonic audio mixed with positional metadata
US10149072B2 (en) * 2016-09-28 2018-12-04 Cochlear Limited Binaural cue preservation in a bilateral system
JP7092047B2 (ja) * 2019-01-17 2022-06-28 日本電信電話株式会社 符号化復号方法、復号方法、これらの装置及びプログラム
WO2022158943A1 (ko) * 2021-01-25 2022-07-28 삼성전자 주식회사 다채널 오디오 신호 처리 장치 및 방법
CN113160837B (zh) * 2021-04-16 2022-12-23 北京百瑞互联技术有限公司 一种sbc码流的混音方法、装置、介质及设备
CN113423006B (zh) * 2021-05-31 2022-07-15 惠州华阳通用电子有限公司 一种基于主副声道的多音频流混音播放方法及系统

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1131508C (zh) 1993-05-05 2003-12-17 皇家菲利浦电子有限公司 包括至少一个编码器的传输系统
US7583805B2 (en) 2004-02-12 2009-09-01 Agere Systems Inc. Late reverberation-based synthesis of auditory scenes
US7644003B2 (en) * 2001-05-04 2010-01-05 Agere Systems Inc. Cue-based audio coding/decoding
US7292901B2 (en) * 2002-06-24 2007-11-06 Agere Systems Inc. Hybrid multi-channel/cue coding/decoding of audio signals
US8498422B2 (en) * 2002-04-22 2013-07-30 Koninklijke Philips N.V. Parametric multi-channel audio representation
ATE377339T1 (de) 2002-07-12 2007-11-15 Koninkl Philips Electronics Nv Audio-kodierung
US7447317B2 (en) * 2003-10-02 2008-11-04 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V Compatible multi-channel coding/decoding by weighting the downmix channel
JP4033840B2 (ja) 2004-02-12 2008-01-16 日本電信電話株式会社 音声ミキシング方法、音声ミキシング装置、音声ミキシングプログラム及びこれを記録した記録媒体
US7392195B2 (en) * 2004-03-25 2008-06-24 Dts, Inc. Lossless multi-channel audio codec
SE0400998D0 (sv) * 2004-04-16 2004-04-16 Cooding Technologies Sweden Ab Method for representing multi-channel audio signals
DE602005024548D1 (de) * 2004-05-19 2010-12-16 Panasonic Corp Audiosignalcodierer und audiosignaldecodierer
WO2006004048A1 (ja) * 2004-07-06 2006-01-12 Matsushita Electric Industrial Co., Ltd. オーディオ信号符号化装置、オーディオ信号復号化装置、方法、及びプログラム
JP2006067367A (ja) * 2004-08-27 2006-03-09 Matsushita Electric Ind Co Ltd 符号化オーディオ信号の編集装置
JP5017121B2 (ja) * 2004-11-30 2012-09-05 アギア システムズ インコーポレーテッド 外部的に供給されるダウンミックスとの空間オーディオのパラメトリック・コーディングの同期化
KR100682904B1 (ko) * 2004-12-01 2007-02-15 삼성전자주식회사 공간 정보를 이용한 다채널 오디오 신호 처리 장치 및 방법
EP1691348A1 (en) * 2005-02-14 2006-08-16 Ecole Polytechnique Federale De Lausanne Parametric joint-coding of audio sources
US7961890B2 (en) * 2005-04-15 2011-06-14 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung, E.V. Multi-channel hierarchical audio coding with compact side information
US7751572B2 (en) * 2005-04-15 2010-07-06 Dolby International Ab Adaptive residual audio coding
JP2006323314A (ja) * 2005-05-20 2006-11-30 Matsushita Electric Ind Co Ltd マルチチャネル音声信号をバイノーラルキュー符号化する装置
EP1938662B1 (en) * 2005-08-30 2016-09-28 LG Electronics Inc. Method, apparatus, computer-readable medium for decoding an audio signal
US20070092086A1 (en) * 2005-10-24 2007-04-26 Pang Hee S Removing time delays in signal paths
KR100888474B1 (ko) * 2005-11-21 2009-03-12 삼성전자주식회사 멀티채널 오디오 신호의 부호화/복호화 장치 및 방법
US9009057B2 (en) * 2006-02-21 2015-04-14 Koninklijke Philips N.V. Audio encoding and decoding to generate binaural virtual spatial signals
US8626515B2 (en) * 2006-03-30 2014-01-07 Lg Electronics Inc. Apparatus for processing media signal and method thereof
US8379868B2 (en) * 2006-05-17 2013-02-19 Creative Technology Ltd Spatial audio coding based on universal spatial cues
EP2112652B1 (en) * 2006-07-07 2012-11-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for combining multiple parametrically coded audio sources
CN100512422C (zh) * 2006-11-23 2009-07-08 北京航空航天大学 多mcu视频会议系统中的混音方法
US8315396B2 (en) * 2008-07-17 2012-11-20 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating audio output signals using object based metadata

Also Published As

Publication number Publication date
BRPI0806228A2 (pt) 2011-09-06
EP2128856A4 (en) 2011-11-02
CN101578655A (zh) 2009-11-11
RU2009122690A (ru) 2010-12-20
US8391513B2 (en) 2013-03-05
US20100063828A1 (en) 2010-03-11
JPWO2009050896A1 (ja) 2011-02-24
CN101578655B (zh) 2013-06-05
RU2473139C2 (ru) 2013-01-20
EP2128856A1 (en) 2009-12-02
WO2009050896A1 (ja) 2009-04-23
JP2013137563A (ja) 2013-07-11

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Legal Events

Date Code Title Description
B25A Requested transfer of rights approved

Owner name: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LT

B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements