MX359381B - Concepto para generar una señal de mezcla descendente. - Google Patents

Concepto para generar una señal de mezcla descendente.

Info

Publication number
MX359381B
MX359381B MX2016003504A MX2016003504A MX359381B MX 359381 B MX359381 B MX 359381B MX 2016003504 A MX2016003504 A MX 2016003504A MX 2016003504 A MX2016003504 A MX 2016003504A MX 359381 B MX359381 B MX 359381B
Authority
MX
Mexico
Prior art keywords
signal
input signal
input
concept
generating
Prior art date
Application number
MX2016003504A
Other languages
English (en)
Other versions
MX2016003504A (es
Inventor
Jürgen Herre
Emanuel Habets
Alexander Adami
Original Assignee
Fraunhofer Ges Zur Foerderung Der Angewandten Forshung E V
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 Zur Foerderung Der Angewandten Forshung E V filed Critical Fraunhofer Ges Zur Foerderung Der Angewandten Forshung E V
Publication of MX2016003504A publication Critical patent/MX2016003504A/es
Publication of MX359381B publication Critical patent/MX359381B/es

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
    • G10L19/008—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
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • 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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/03—Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Stereophonic System (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Amplifiers (AREA)
  • Filters That Use Time-Delay Elements (AREA)

Abstract

Un dispositivo procesador de señales de audio (1) para la mezcla descendente de una primera señal de entrada (X1) y una segunda señal de entrada (X2) a una señal de mezcla descendente (XD) que comprende: un extractor de disparidad (2) configurado para recibir la primera señal de entrada (X1) y la segunda señal de entrada (X2) así como para sacar una señal extraída (Û 2), que está menos correlacionada con respecto a la primera señal de entrada (X1) que la segunda señal de entrada (X2) y un combinador (3) configurado para combinar la primera señal de entrada (X1) y la señal extraída (Û2) fin de obtener la señal de mezcla descendente (XD).
MX2016003504A 2013-09-27 2014-09-02 Concepto para generar una señal de mezcla descendente. MX359381B (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13186480 2013-09-27
EP14161059.2A EP2854133A1 (en) 2013-09-27 2014-03-21 Generation of a downmix signal
PCT/EP2014/068611 WO2015043891A1 (en) 2013-09-27 2014-09-02 Concept for generating a downmix signal

Publications (2)

Publication Number Publication Date
MX2016003504A MX2016003504A (es) 2016-07-06
MX359381B true MX359381B (es) 2018-09-25

Family

ID=50442340

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2016003504A MX359381B (es) 2013-09-27 2014-09-02 Concepto para generar una señal de mezcla descendente.

Country Status (11)

Country Link
US (1) US10021501B2 (es)
EP (2) EP2854133A1 (es)
JP (1) JP6275831B2 (es)
KR (1) KR101833380B1 (es)
CN (1) CN105765652B (es)
BR (1) BR112016006323B1 (es)
CA (1) CA2925230C (es)
ES (1) ES2649481T3 (es)
MX (1) MX359381B (es)
RU (1) RU2661310C2 (es)
WO (1) WO2015043891A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PT3539127T (pt) * 2016-11-08 2020-12-04 Fraunhofer Ges Forschung Dispositivo de downmix e método para executar o downmix de pelo menos dois canais e codificador multicanal e descodificador multicanal
US11363377B2 (en) 2017-10-16 2022-06-14 Sony Europe B.V. Audio processing
CN110060696B (zh) * 2018-01-19 2021-06-15 腾讯科技（深圳）有限公司 混音方法及装置、终端及可读存储介质
CN110556116B (zh) 2018-05-31 2021-10-22 华为技术有限公司 计算下混信号和残差信号的方法和装置

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JP3526185B2 (ja) * 1997-10-07 2004-05-10 パイオニア株式会社 記録情報再生装置におけるクロストーク除去装置
DK1173925T3 (da) * 1999-04-07 2004-03-29 Dolby Lab Licensing Corp Matriksforbedringer til tabsfri kodning og dekodning
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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
US7573912B2 (en) * 2005-02-22 2009-08-11 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschunng E.V. Near-transparent or transparent multi-channel encoder/decoder scheme
CN101197798B (zh) * 2006-12-07 2011-11-02 华为技术有限公司 信号处理系统、芯片、外接卡、滤波、收发装置及方法
GB0704622D0 (en) * 2007-03-09 2007-04-18 Skype Ltd Speech coding system and method
JP5133401B2 (ja) * 2007-04-26 2013-01-30 ドルビー・インターナショナル・アクチボラゲット 出力信号の合成装置及び合成方法
KR101434200B1 (ko) * 2007-10-01 2014-08-26 삼성전자주식회사 혼합 사운드로부터의 음원 판별 방법 및 장치
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DE102008056704B4 (de) 2008-11-11 2010-11-04 Institut für Rundfunktechnik GmbH Verfahren zum Erzeugen eines abwärtskompatiblen Tonformates
EP2214162A1 (en) * 2009-01-28 2010-08-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Upmixer, method and computer program for upmixing a downmix audio signal
EP2214161A1 (en) * 2009-01-28 2010-08-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method and computer program for upmixing a downmix audio signal
JP5358691B2 (ja) 2009-04-08 2013-12-04 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 位相値平滑化を用いてダウンミックスオーディオ信号をアップミックスする装置、方法、およびコンピュータプログラム
KR101697550B1 (ko) * 2010-09-16 2017-02-02 삼성전자주식회사 멀티채널 오디오 대역폭 확장 장치 및 방법
JP5533502B2 (ja) * 2010-09-28 2014-06-25 富士通株式会社 オーディオ符号化装置、オーディオ符号化方法及びオーディオ符号化用コンピュータプログラム
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JP2013207487A (ja) 2012-03-28 2013-10-07 Nec Corp 携帯端末不正利用防止システム

Also Published As

Publication number Publication date
CN105765652A (zh) 2016-07-13
EP3050054B1 (en) 2017-10-18
KR101833380B1 (ko) 2018-02-28
US20160212561A1 (en) 2016-07-21
ES2649481T3 (es) 2018-01-12
CA2925230A1 (en) 2015-04-02
BR112016006323B1 (pt) 2021-12-14
CN105765652B (zh) 2019-11-19
CA2925230C (en) 2018-08-14
EP3050054A1 (en) 2016-08-03
RU2016116285A (ru) 2017-11-01
KR20160067099A (ko) 2016-06-13
RU2661310C2 (ru) 2018-07-13
EP2854133A1 (en) 2015-04-01
MX2016003504A (es) 2016-07-06
JP2016538578A (ja) 2016-12-08
BR112016006323A2 (pt) 2017-08-01
WO2015043891A1 (en) 2015-04-02
US10021501B2 (en) 2018-07-10
JP6275831B2 (ja) 2018-02-07

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