MX2016004918A - Estructura de decorrelador para la reconstruccion parametrica de señales de audio. - Google Patents

Estructura de decorrelador para la reconstruccion parametrica de señales de audio.

Info

Publication number
MX2016004918A
MX2016004918A MX2016004918A MX2016004918A MX2016004918A MX 2016004918 A MX2016004918 A MX 2016004918A MX 2016004918 A MX2016004918 A MX 2016004918A MX 2016004918 A MX2016004918 A MX 2016004918A MX 2016004918 A MX2016004918 A MX 2016004918A
Authority
MX
Mexico
Prior art keywords
signal
wet
coefficients
upmix
computes
Prior art date
Application number
MX2016004918A
Other languages
English (en)
Other versions
MX354832B (es
Inventor
Heiko Purnhagen
Lars Villemoes
Toni Hirvonen
Original Assignee
Dolby Int Ab
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 Dolby Int Ab filed Critical Dolby Int Ab
Publication of MX2016004918A publication Critical patent/MX2016004918A/es
Publication of MX354832B publication Critical patent/MX354832B/es

Links

Classifications

    • 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
    • G10L19/008—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
    • G10L19/002—Dynamic bit allocation
    • 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
    • G10L25/21—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 power information
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/03—Application of parametric coding in stereophonic audio systems

Landscapes

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

Abstract

Un sistema de codificación codifica múltiples señales de audio (X) como una señal de mezcla descendente (Y) junto con coeficientes de mezcla ascendente húmeda y seca (P,C). En un sistema de decodificación, un premultiplicador (101) calcula una señal intermedia ( W ) al mapear la señal de mezcla descendente de forma lineal de acuerdo con un primer conjunto de coeficientes (Q); una señal de descorrelación (102) emite una señal descorrelacionada ( Z ) basada en la señal intermedia; una sección de mezcla ascendente húmeda (103) calcula una señal de mezcla ascendente húmeda al mapear la señal descorrelacionada de forma lineal de acuerdo con los coeficientes de mezcla ascendente húmeda; una sección de mezcla ascendente seca (104) calcula una señal de mezcla ascendente seca, mediante el mapeo de forma lineal de la señal de mezcla descendente de acuerdo con los coeficientes de mezcla ascendente seca; una sección de combinación (105) proporciona una señal reconstruida multidimensional (X) al combinar las señales de mezcla ascendente húmeda y seca; y un convertidor (106) calcula el primer conjunto de coeficientes en función de los coeficientes de mezcla ascendente húmeda y seca y le suministra esto al premultiplicador.
MX2016004918A 2013-10-21 2014-10-21 Estructura de decorrelador para la reconstruccion parametrica de señales de audio. MX354832B (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201361893770P 2013-10-21 2013-10-21
US201461973646P 2014-04-01 2014-04-01
PCT/EP2014/072568 WO2015059152A1 (en) 2013-10-21 2014-10-21 Decorrelator structure for parametric reconstruction of audio signals

Publications (2)

Publication Number Publication Date
MX2016004918A true MX2016004918A (es) 2016-07-11
MX354832B MX354832B (es) 2018-03-21

Family

ID=51830286

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2016004918A MX354832B (es) 2013-10-21 2014-10-21 Estructura de decorrelador para la reconstruccion parametrica de señales de audio.

Country Status (15)

Country Link
US (1) US9848272B2 (es)
EP (1) EP3061088B1 (es)
JP (1) JP6201047B2 (es)
KR (1) KR101805327B1 (es)
CN (1) CN105637581B (es)
AU (1) AU2014339065B2 (es)
BR (1) BR112016008426B1 (es)
CA (1) CA2926243C (es)
ES (1) ES2659019T3 (es)
IL (1) IL244785B (es)
MX (1) MX354832B (es)
RU (1) RU2641463C2 (es)
SG (1) SG11201602628TA (es)
UA (1) UA117258C2 (es)
WO (1) WO2015059152A1 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018162472A1 (en) 2017-03-06 2018-09-13 Dolby International Ab Integrated reconstruction and rendering of audio signals
US10891962B2 (en) 2017-03-06 2021-01-12 Dolby International Ab Integrated reconstruction and rendering of audio signals
JP7471326B2 (ja) 2019-06-14 2024-04-19 フラウンホファー ゲセルシャフト ツール フェールデルンク ダー アンゲヴァンテン フォルシュンク エー．ファオ． パラメータの符号化および復号

Family Cites Families (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5956674A (en) * 1995-12-01 1999-09-21 Digital Theater Systems, Inc. Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels
US6252965B1 (en) * 1996-09-19 2001-06-26 Terry D. Beard Multichannel spectral mapping audio apparatus and method
GB2343347B (en) 1998-06-20 2002-12-31 Central Research Lab Ltd A method of synthesising an audio signal
KR101016982B1 (ko) 2002-04-22 2011-02-28 코닌클리케 필립스 일렉트로닉스 엔.브이. 디코딩 장치
US7502743B2 (en) 2002-09-04 2009-03-10 Microsoft Corporation Multi-channel audio encoding and decoding with multi-channel transform selection
ATE355590T1 (de) 2003-04-17 2006-03-15 Koninkl Philips Electronics Nv Audiosignalsynthese
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
ATE430360T1 (de) 2004-03-01 2009-05-15 Dolby Lab Licensing Corp Mehrkanalige audiodekodierung
SE0400998D0 (sv) 2004-04-16 2004-04-16 Cooding Technologies Sweden Ab Method for representing multi-channel audio signals
SE0402649D0 (sv) 2004-11-02 2004-11-02 Coding Tech Ab Advanced methods of creating orthogonal signals
SE0402652D0 (sv) 2004-11-02 2004-11-02 Coding Tech Ab Methods for improved performance of prediction based multi- channel reconstruction
RU2407068C2 (ru) * 2004-11-04 2010-12-20 Конинклейке Филипс Электроникс Н.В. Многоканальное кодирование и декодирование
ES2374309T3 (es) 2005-07-14 2012-02-15 Koninklijke Philips Electronics N.V. Decodificación de audio.
US8626503B2 (en) 2005-07-14 2014-01-07 Erik Gosuinus Petrus Schuijers Audio encoding and decoding
CN101253556B (zh) 2005-09-02 2011-06-22 松下电器产业株式会社 能量整形装置以及能量整形方法
KR100888474B1 (ko) * 2005-11-21 2009-03-12 삼성전자주식회사 멀티채널 오디오 신호의 부호화/복호화 장치 및 방법
RU2008132156A (ru) 2006-01-05 2010-02-10 Телефонактиеболагет ЛМ Эрикссон (пабл) (SE) Персонализированное декодирование многоканального объемного звука
KR101218776B1 (ko) 2006-01-11 2013-01-18 삼성전자주식회사 다운믹스된 신호로부터 멀티채널 신호 생성방법 및 그 기록매체
KR100803212B1 (ko) 2006-01-11 2008-02-14 삼성전자주식회사 스케일러블 채널 복호화 방법 및 장치
EP1994796A1 (en) * 2006-03-15 2008-11-26 Dolby Laboratories Licensing Corporation Binaural rendering using subband filters
US7965848B2 (en) 2006-03-29 2011-06-21 Dolby International Ab Reduced number of channels decoding
PL2137725T3 (pl) 2007-04-26 2014-06-30 Dolby Int Ab Urządzenie i sposób do syntetyzowania sygnału wyjściowego
KR101464977B1 (ko) 2007-10-01 2014-11-25 삼성전자주식회사 메모리 관리 방법, 및 멀티 채널 데이터의 복호화 방법 및장치
ES2461601T3 (es) * 2007-10-09 2014-05-20 Koninklijke Philips N.V. Procedimiento y aparato para generar una señal de audio binaural
US8091836B2 (en) * 2007-12-19 2012-01-10 Pratt & Whitney Rocketdyne, Inc. Rotary wing system with ion field flow control
EP2283483B1 (en) 2008-05-23 2013-03-13 Koninklijke Philips Electronics N.V. A parametric stereo upmix apparatus, a parametric stereo decoder, a parametric stereo downmix apparatus, a parametric stereo encoder
EP2144229A1 (en) * 2008-07-11 2010-01-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Efficient use of phase information in audio encoding and decoding
WO2010036062A2 (en) * 2008-09-25 2010-04-01 Lg Electronics Inc. A method and an apparatus for processing a signal
KR20100035121A (ko) * 2008-09-25 2010-04-02 엘지전자 주식회사 신호 처리 방법 및 이의 장치
EP2175670A1 (en) 2008-10-07 2010-04-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Binaural rendering of a multi-channel audio signal
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
KR101356972B1 (ko) * 2009-04-08 2014-02-05 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 위상값 평활화를 이용하여 다운믹스 오디오 신호를 업믹스하는 장치, 방법 및 컴퓨터 프로그램
WO2010122455A1 (en) 2009-04-21 2010-10-28 Koninklijke Philips Electronics N.V. Audio signal synthesizing
EP2535892B1 (en) 2009-06-24 2014-08-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio signal decoder, method for decoding an audio signal and computer program using cascaded audio object processing stages
JP5793675B2 (ja) 2009-07-31 2015-10-14 パナソニックＩｐマネジメント株式会社 符号化装置および復号装置
AU2010309867B2 (en) * 2009-10-20 2014-05-08 Dolby International Ab Apparatus for providing an upmix signal representation on the basis of a downmix signal representation, apparatus for providing a bitstream representing a multichannel audio signal, methods, computer program and bitstream using a distortion control signaling
EP2360681A1 (en) 2010-01-15 2011-08-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for extracting a direct/ambience signal from a downmix signal and spatial parametric information
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
AU2011295367B2 (en) * 2010-08-25 2014-07-31 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus for decoding a signal comprising transients using a combining unit and a mixer
CN103262159B (zh) 2010-10-05 2016-06-08 华为技术有限公司 用于对多声道音频信号进行编码/解码的方法和装置
EP2477188A1 (en) * 2011-01-18 2012-07-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encoding and decoding of slot positions of events in an audio signal frame
US9042867B2 (en) 2012-02-24 2015-05-26 Agnitio S.L. System and method for speaker recognition on mobile devices
US9728194B2 (en) 2012-02-24 2017-08-08 Dolby International Ab Audio processing
CN105393304B (zh) 2013-05-24 2019-05-28 杜比国际公司 音频编码和解码方法、介质以及音频编码器和解码器
EP3061089B1 (en) * 2013-10-21 2018-01-17 Dolby International AB Parametric reconstruction of audio signals

Also Published As

Publication number Publication date
CA2926243C (en) 2018-01-23
RU2016115360A (ru) 2017-11-28
IL244785B (en) 2019-02-28
CA2926243A1 (en) 2015-04-30
KR101805327B1 (ko) 2017-12-05
JP2016539358A (ja) 2016-12-15
AU2014339065B2 (en) 2017-04-20
EP3061088B1 (en) 2017-12-27
BR112016008426B1 (pt) 2022-09-27
SG11201602628TA (en) 2016-05-30
RU2641463C2 (ru) 2018-01-17
EP3061088A1 (en) 2016-08-31
JP6201047B2 (ja) 2017-09-20
WO2015059152A1 (en) 2015-04-30
US9848272B2 (en) 2017-12-19
BR112016008426A2 (es) 2017-08-01
IL244785A0 (en) 2016-04-21
CN105637581A (zh) 2016-06-01
US20160261967A1 (en) 2016-09-08
ES2659019T3 (es) 2018-03-13
KR20160056324A (ko) 2016-05-19
CN105637581B (zh) 2019-09-20
AU2014339065A1 (en) 2016-04-21
UA117258C2 (uk) 2018-07-10
MX354832B (es) 2018-03-21

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