BR112012017551A2 - Aparelho e método para extrair um sinal direto/ambiente de um sinal downmix e informações paramétricas espaciais - Google Patents

Aparelho e método para extrair um sinal direto/ambiente de um sinal downmix e informações paramétricas espaciais

Info

Publication number
BR112012017551A2
BR112012017551A2 BR112012017551A BR112012017551A BR112012017551A2 BR 112012017551 A2 BR112012017551 A2 BR 112012017551A2 BR 112012017551 A BR112012017551 A BR 112012017551A BR 112012017551 A BR112012017551 A BR 112012017551A BR 112012017551 A2 BR112012017551 A2 BR 112012017551A2
Authority
BR
Brazil
Prior art keywords
direct
signal
ambient
environment
extracting
Prior art date
Application number
BR112012017551A
Other languages
English (en)
Other versions
BR112012017551B1 (pt
Inventor
Vilkamo Juha
Plogsties Jan
Neugebauer Bernhard
Herre Jürgen
Original Assignee
Fraunhofer Ges Forschung
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Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of BR112012017551A2 publication Critical patent/BR112012017551A2/pt
Publication of BR112012017551B1 publication Critical patent/BR112012017551B1/pt

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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
    • 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 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/01—Enhancing the perception of the sound image or of the spatial distribution using head related transfer functions [HRTF's] or equivalents thereof, e.g. interaural time difference [ITD] or interaural level difference [ILD]

Landscapes

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

Abstract

APARELHO E MÉTODO PARA EXTRAIR UM SINAL DIRETO/AMBIENTE DE UM SINAL DOWNMIX E INFORMAÇÕES PARAMÉTRICAS ESPACIAIS. É descrito um aparelho para extrair um sinal direto e/ou ambiente de um sinal downmix e informações paramétricas espaciais, o sinal downmix e as informações paramétricas espaciais representando um sinal de áudio de múltiplos canais tendo mais canais que o sinal downmix, em que as informações paramétricas espaciais compreendem relações intercanais do sinal de áudio de múltiplos canais. O aparelho compreende um estimador direto/ambiente e um extrator direto/ambiente. O estimador direto/ambiente é configurado para estimar uma informação de nível de uma parte direta e/ou uma parte ambiente do sinal de áudio de múltiplos canais com base nas informações paramétricas espaciais. O extrator direto/ambiente é configurado para extrair uma parte de sinal direto e/ou uma parte de sinal ambiente do sinal downmix com base nas informação de nível estimada da parte direta ou da parte ambiente.
BR112012017551-3A 2010-01-15 2011-01-11 Aparelho e método para extrair um sinal direto/ambiente de um sinal downmix e informações paramétricas espaciais BR112012017551B1 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US29527810P 2010-01-15 2010-01-15
US61/295,278 2010-01-15
EP10174230.2 2010-08-26
EP10174230A EP2360681A1 (en) 2010-01-15 2010-08-26 Apparatus and method for extracting a direct/ambience signal from a downmix signal and spatial parametric information
PCT/EP2011/050265 WO2011086060A1 (en) 2010-01-15 2011-01-11 Apparatus and method for extracting a direct/ambience signal from a downmix signal and spatial parametric information

Publications (2)

Publication Number Publication Date
BR112012017551A2 true BR112012017551A2 (pt) 2017-10-03
BR112012017551B1 BR112012017551B1 (pt) 2020-12-15

Family

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Family Applications (1)

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BR112012017551-3A BR112012017551B1 (pt) 2010-01-15 2011-01-11 Aparelho e método para extrair um sinal direto/ambiente de um sinal downmix e informações paramétricas espaciais

Country Status (14)

Country Link
US (1) US9093063B2 (pt)
EP (2) EP2360681A1 (pt)
JP (1) JP5820820B2 (pt)
KR (1) KR101491890B1 (pt)
CN (1) CN102804264B (pt)
AR (1) AR079998A1 (pt)
AU (1) AU2011206670B2 (pt)
BR (1) BR112012017551B1 (pt)
CA (1) CA2786943C (pt)
ES (1) ES2587196T3 (pt)
MX (1) MX2012008119A (pt)
RU (1) RU2568926C2 (pt)
TW (1) TWI459376B (pt)
WO (1) WO2011086060A1 (pt)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011083981A2 (en) * 2010-01-06 2011-07-14 Lg Electronics Inc. An apparatus for processing an audio signal and method thereof
TWI733583B (zh) * 2010-12-03 2021-07-11 美商杜比實驗室特許公司 音頻解碼裝置、音頻解碼方法及音頻編碼方法
US9253574B2 (en) 2011-09-13 2016-02-02 Dts, Inc. Direct-diffuse decomposition
BR112014010062B1 (pt) * 2011-11-01 2021-12-14 Koninklijke Philips N.V. Codificador de objeto de áudio, decodificador de objeto de áudio, método para a codificação de objeto de áudio, e método para a decodificação de objeto de áudio
US20150243289A1 (en) * 2012-09-14 2015-08-27 Dolby Laboratories Licensing Corporation Multi-Channel Audio Content Analysis Based Upmix Detection
IN2015MN01952A (pt) * 2013-02-14 2015-08-28 Dolby Lab Licensing Corp
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
KR101859453B1 (ko) 2013-03-29 2018-05-21 삼성전자주식회사 오디오 장치 및 이의 오디오 제공 방법
WO2014171791A1 (ko) 2013-04-19 2014-10-23 한국전자통신연구원 다채널 오디오 신호 처리 장치 및 방법
CN104982042B (zh) 2013-04-19 2018-06-08 韩国电子通信研究院 多信道音频信号处理装置及方法
EP2804176A1 (en) * 2013-05-13 2014-11-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio object separation from mixture signal using object-specific time/frequency resolutions
CN104240711B (zh) * 2013-06-18 2019-10-11 杜比实验室特许公司 用于生成自适应音频内容的方法、***和装置
EP2830053A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Multi-channel audio decoder, multi-channel audio encoder, methods and computer program using a residual-signal-based adjustment of a contribution of a decorrelated signal
US9319819B2 (en) 2013-07-25 2016-04-19 Etri Binaural rendering method and apparatus for decoding multi channel audio
BR122020017207B1 (pt) * 2013-08-28 2022-12-06 Dolby International Ab Método, sistema de processamento de mídia, aparelho e meio de armazenamento legível por computador não transitório
SG11201602628TA (en) 2013-10-21 2016-05-30 Dolby Int Ab Decorrelator structure for parametric reconstruction of audio signals
EP2866227A1 (en) 2013-10-22 2015-04-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for decoding and encoding a downmix matrix, method for presenting audio content, encoder and decoder for a downmix matrix, audio encoder and audio decoder
CN113630711B (zh) 2013-10-31 2023-12-01 杜比实验室特许公司 使用元数据处理的耳机的双耳呈现
CN103700372B (zh) * 2013-12-30 2016-10-05 北京大学 一种基于正交解相关技术的参数立体声编码、解码方法
EP2892250A1 (en) 2014-01-07 2015-07-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for generating a plurality of audio channels
US9955276B2 (en) 2014-10-31 2018-04-24 Dolby International Ab Parametric encoding and decoding of multichannel audio signals
CA2979598C (en) * 2015-03-27 2020-08-18 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for processing stereo signals for reproduction in cars to achieve individual three-dimensional sound by frontal loudspeakers
WO2017035281A2 (en) 2015-08-25 2017-03-02 Dolby International Ab Audio encoding and decoding using presentation transform parameters
CN105405445B (zh) * 2015-12-10 2019-03-22 北京大学 一种基于声道间传递函数的参数立体声编码、解码方法
RU2687882C1 (ru) 2016-03-15 2019-05-16 Фраунхофер-Гезеллшафт Цур Фёрдерунг Дер Ангевандтен Форшунг Е.В. Устройство, способ формирования характеристики звукового поля и машиночитаемый носитель информации
GB2549532A (en) * 2016-04-22 2017-10-25 Nokia Technologies Oy Merging audio signals with spatial metadata
JP6846822B2 (ja) * 2016-04-27 2021-03-24 国立大学法人富山大学 オーディオ信号処理装置、オーディオ信号処理方法、およびオーディオ信号処理プログラム
US9913061B1 (en) 2016-08-29 2018-03-06 The Directv Group, Inc. Methods and systems for rendering binaural audio content
US10187740B2 (en) * 2016-09-23 2019-01-22 Apple Inc. Producing headphone driver signals in a digital audio signal processing binaural rendering environment
CN109427337B (zh) * 2017-08-23 2021-03-30 华为技术有限公司 立体声信号编码时重建信号的方法和装置
US10306391B1 (en) 2017-12-18 2019-05-28 Apple Inc. Stereophonic to monophonic down-mixing
WO2020009350A1 (ko) * 2018-07-02 2020-01-09 엘지전자 주식회사 오클루션 이펙트에 관한 오디오 데이터를 송수신하는 방법 및 그 장치
EP3818730A4 (en) 2018-07-03 2022-08-31 Nokia Technologies Oy SIGNALING AND ENERGY REPORT SUMMARY
EP3618464A1 (en) * 2018-08-30 2020-03-04 Nokia Technologies Oy Reproduction of parametric spatial audio using a soundbar
CN109036455B (zh) * 2018-09-17 2020-11-06 中科上声（苏州）电子有限公司 直达声与背景声提取方法、扬声器***及其声重放方法
FI3874492T3 (fi) 2018-10-31 2024-01-08 Nokia Technologies Oy Spatiaalisten äänten parametrikoodauksen ja siihen liittyvän dekoodauksen määrittäminen
GB2578603A (en) * 2018-10-31 2020-05-20 Nokia Technologies Oy Determination of spatial audio parameter encoding and associated decoding
CN114402631B (zh) * 2019-05-15 2024-05-31 苹果公司 用于回放捕获的声音的方法和电子设备
WO2024081957A1 (en) * 2022-10-14 2024-04-18 Virtuel Works Llc Binaural externalization processing

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL129752A (en) * 1999-05-04 2003-01-12 Eci Telecom Ltd Telecommunication method and system for using same
CN1144224C (zh) * 2000-02-14 2004-03-31 王幼庚 耳前声波记录生成空间声信号的方法
US7567845B1 (en) 2002-06-04 2009-07-28 Creative Technology Ltd Ambience generation for stereo signals
SE0400997D0 (sv) * 2004-04-16 2004-04-16 Cooding Technologies Sweden Ab Efficient coding of multi-channel audio
SE0402652D0 (sv) * 2004-11-02 2004-11-02 Coding Tech Ab Methods for improved performance of prediction based multi- channel reconstruction
EP1761110A1 (en) 2005-09-02 2007-03-07 Ecole Polytechnique Fédérale de Lausanne Method to generate multi-channel audio signals from stereo signals
CA2646961C (en) * 2006-03-28 2013-09-03 Sascha Disch Enhanced method for signal shaping in multi-channel audio reconstruction
US8103005B2 (en) 2008-02-04 2012-01-24 Creative Technology Ltd Primary-ambient decomposition of stereo audio signals using a complex similarity index
CN102246543B (zh) * 2008-12-11 2014-06-18 弗兰霍菲尔运输应用研究公司 产生多信道音频信号的装置

Also Published As

Publication number Publication date
CN102804264B (zh) 2016-03-09
KR20120109627A (ko) 2012-10-08
JP2013517518A (ja) 2013-05-16
AU2011206670B2 (en) 2014-01-23
MX2012008119A (es) 2012-10-09
US20120314876A1 (en) 2012-12-13
US9093063B2 (en) 2015-07-28
CA2786943A1 (en) 2011-07-21
EP2360681A1 (en) 2011-08-24
EP2524370A1 (en) 2012-11-21
RU2568926C2 (ru) 2015-11-20
AU2011206670A1 (en) 2012-08-09
CN102804264A (zh) 2012-11-28
TWI459376B (zh) 2014-11-01
TW201142825A (en) 2011-12-01
EP2524370B1 (en) 2016-07-27
BR112012017551B1 (pt) 2020-12-15
ES2587196T3 (es) 2016-10-21
CA2786943C (en) 2017-11-07
AR079998A1 (es) 2012-03-07
RU2012136027A (ru) 2014-02-20
KR101491890B1 (ko) 2015-02-09
JP5820820B2 (ja) 2015-11-24
WO2011086060A1 (en) 2011-07-21

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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]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 11/01/2011, OBSERVADAS AS CONDICOES LEGAIS.