WO2009050896A1 - ストリーム合成装置、復号装置、方法 - Google Patents

ストリーム合成装置、復号装置、方法 Download PDF

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Publication number
WO2009050896A1
WO2009050896A1 PCT/JP2008/002941 JP2008002941W WO2009050896A1 WO 2009050896 A1 WO2009050896 A1 WO 2009050896A1 JP 2008002941 W JP2008002941 W JP 2008002941W WO 2009050896 A1 WO2009050896 A1 WO 2009050896A1
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WO
WIPO (PCT)
Prior art keywords
signals
encoding
mixed
mixed acoustic
acoustic signals
Prior art date
Application number
PCT/JP2008/002941
Other languages
English (en)
French (fr)
Inventor
Tomokazu Ishikawa
Takeshi Norimatsu
Takashi Katayama
Original Assignee
Panasonic Corporation
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 Corporation filed Critical Panasonic Corporation
Priority to EP20080839632 priority Critical patent/EP2128856A4/en
Priority to BRPI0806228A priority patent/BRPI0806228A8/pt
Priority to US12/519,248 priority patent/US8391513B2/en
Priority to CN200880001370XA priority patent/CN101578655B/zh
Priority to JP2009512090A priority patent/JPWO2009050896A1/ja
Priority to RU2009122690/08A priority patent/RU2473139C2/ru
Publication of WO2009050896A1 publication Critical patent/WO2009050896A1/ja

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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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)

Abstract

　多拠点接続時の臨場感を向上させつつ、多拠点接続装置での演算負荷を減らすことが可能になるようにする。 　２つ以上の音信号がダウンミックスされた音響信号が符号化された第１のダウンミックス音響信号と、当該第１のダウンミックス音響信号から前記２つ以上の音信号を取得するための拡張信号とが含まれる符号化信号を２つ以上入力する入力部と、前記入力部によって入力された各符号化信号に基いて、前記各第１のダウンミックス音響信号が取得される第２のダウンミックス音響信号と、当該第２のダウンミックス音響信号から前記各第１のダウンミックス音響信号を取得するための拡張信号とを生成し、生成された当該第２のダウンミックス音響信号と、生成された当該拡張信号と、入力された前記各符号化信号の各拡張信号とが含まれる符号化信号を生成する符号化信号生成部と、生成された当該符号化信号を出力する出力部とを備えるストリーム合成装置が構成される。
PCT/JP2008/002941 2007-10-16 2008-10-16 ストリーム合成装置、復号装置、方法 WO2009050896A1 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP20080839632 EP2128856A4 (en) 2007-10-16 2008-10-16 DEVICE FOR PRODUCING A STREAM AND DECODING DEVICE AND CORRESPONDING METHOD
BRPI0806228A BRPI0806228A8 (pt) 2007-10-16 2008-10-16 Dispositivo de sintetização de fluxo, unidade de decodificação e método
US12/519,248 US8391513B2 (en) 2007-10-16 2008-10-16 Stream synthesizing device, decoding unit and method
CN200880001370XA CN101578655B (zh) 2007-10-16 2008-10-16 流合成装置、解码装置、方法
JP2009512090A JPWO2009050896A1 (ja) 2007-10-16 2008-10-16 ストリーム合成装置、復号装置、方法
RU2009122690/08A RU2473139C2 (ru) 2007-10-16 2008-10-16 Устройство объединения потоков, модуль и способ декодирования

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007-269127 2007-10-16
JP2007269127 2007-10-16
JP2008184666 2008-07-16
JP2008-184666 2008-07-16

Publications (1)

Publication Number Publication Date
WO2009050896A1 true WO2009050896A1 (ja) 2009-04-23

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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

Country Status (7)

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

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JP2011530720A (ja) * 2008-08-13 2011-12-22 フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー．ファオ 空間オーディオストリームをマージするための装置
EP2490426A1 (en) * 2009-11-13 2012-08-22 Huawei Device Co., Ltd. Method, apparatus and system for implementing audio mixing
JP2013502608A (ja) * 2009-08-18 2013-01-24 サムスン エレクトロニクス カンパニー リミテッド マルチチャネル・オーディオ信号の符号化方法及び該装置、その復号化方法及び該装置

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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
US9460729B2 (en) 2012-09-21 2016-10-04 Dolby Laboratories Licensing Corporation Layered approach to spatial audio coding
US9491299B2 (en) * 2012-11-27 2016-11-08 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
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

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Also Published As

Publication number Publication date
RU2009122690A (ru) 2010-12-20
BRPI0806228A2 (pt) 2011-09-06
CN101578655B (zh) 2013-06-05
EP2128856A4 (en) 2011-11-02
JP2013137563A (ja) 2013-07-11
RU2473139C2 (ru) 2013-01-20
CN101578655A (zh) 2009-11-11
BRPI0806228A8 (pt) 2016-11-29
EP2128856A1 (en) 2009-12-02
US8391513B2 (en) 2013-03-05
US20100063828A1 (en) 2010-03-11
JPWO2009050896A1 (ja) 2011-02-24

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