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
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 Forschung filed Critical Fraunhofer Ges Forschung
Publication of BR112012017551A2 publication Critical patent/BR112012017551A2/pt
Publication of BR112012017551B1 publication Critical patent/BR112012017551B1/pt

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
    • 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

ID=43536672

Family Applications (1)

Application Number Title Priority Date Filing Date
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
KR101405976B1 (ko) * 2010-01-06 2014-06-12 엘지전자 주식회사 오디오 신호 처리 방법 및 장치
TW202405797A (zh) * 2010-12-03 2024-02-01 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
CN103890841B (zh) * 2011-11-01 2017-10-17 皇家飞利浦有限公司 音频对象编码和解码
EP2896040B1 (en) * 2012-09-14 2016-11-09 Dolby Laboratories Licensing Corporation Multi-channel audio content analysis based upmix detection
KR101729930B1 (ko) * 2013-02-14 2017-04-25 돌비 레버러토리즈 라이쎈싱 코오포레이션 업믹스된 오디오 신호들의 채널간 코히어런스를 제어하기 위한 방법
WO2014126688A1 (en) 2013-02-14 2014-08-21 Dolby Laboratories Licensing Corporation Methods for audio signal transient detection and decorrelation control
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
EP2981101B1 (en) 2013-03-29 2019-08-14 Samsung Electronics Co., Ltd. Audio apparatus and audio providing method thereof
CN108810793B (zh) 2013-04-19 2020-12-15 韩国电子通信研究院 多信道音频信号处理装置及方法
CN108806704B (zh) 2013-04-19 2023-06-06 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、系统和装置
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
BR112016004299B1 (pt) 2013-08-28 2022-05-17 Dolby Laboratories Licensing Corporation Método, aparelho e meio de armazenamento legível por computador para melhora de fala codificada paramétrica e codificada com forma de onda híbrida
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
CN107004421B (zh) 2014-10-31 2020-07-07 杜比国际公司 多通道音频信号的参数编码和解码
CN107743713B (zh) * 2015-03-27 2019-11-26 弗劳恩霍夫应用研究促进协会 处理用于在汽车中再现的立体声信号以通过前置扬声器实现单独的三维声音的装置和方法
EA034936B1 (ru) 2015-08-25 2020-04-08 Долби Интернешнл Аб Кодирование и декодирование звука с использованием параметров преобразования представления
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
CN108886649B (zh) 2016-03-15 2020-11-10 弗劳恩霍夫应用研究促进协会 用于生成声场描述的装置、方法或计算机程序
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
WO2020008112A1 (en) 2018-07-03 2020-01-09 Nokia Technologies Oy Energy-ratio signalling and synthesis
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、扬声器系统及其声重放方法
GB2578603A (en) * 2018-10-31 2020-05-20 Nokia Technologies Oy Determination of spatial audio parameter encoding and associated decoding
FI3874492T3 (fi) 2018-10-31 2024-01-08 Nokia Technologies Oy Spatiaalisten äänten parametrikoodauksen ja siihen liittyvän dekoodauksen määrittäminen
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
CN101406073B (zh) * 2006-03-28 2013-01-09 弗劳恩霍夫应用研究促进协会 用于多声道音频重构中的信号成形的增强的方法
US8103005B2 (en) 2008-02-04 2012-01-24 Creative Technology Ltd Primary-ambient decomposition of stereo audio signals using a complex similarity index
ES2875416T3 (es) * 2008-12-11 2021-11-10 Fraunhofer Ges Forschung Aparato para generar una señal de audio multicanal

Also Published As

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

Similar Documents

Publication Publication Date Title
BR112012017551A2 (pt) Aparelho e método para extrair um sinal direto/ambiente de um sinal downmix e informações paramétricas espaciais
BR112012015018A2 (pt) Um aparelho e um método para converter um primeiro sinal de áudio espacial paramétrico em um segundo sinal de áudio espacial paramétrico
BR112019000398A2 (pt) realidade virtual, aumentada e mista
EP3489945A4 (en) MUSICAL PERFORMANCE ANALYSIS METHOD, AUTOMATIC MUSICAL PERFORMANCE METHOD AND AUTOMATIC MUSICAL PERFORMANCE SYSTEM
WO2012021861A3 (en) Detection of anatomical landmarks
CA2863637C (en) External files for distribution of molecular diagnostic tests and determination of compatibility between tests
WO2012024658A3 (en) Integrated analysis system
ATE522409T1 (de) System und verfahren für eine automatische bremsfunktion eines elektrischen flugzeugbremssystems
WO2013181158A3 (en) Synchronizing translated digital content
WO2011146917A3 (en) Apparatuses, systems and methods for determining installed software applications on a computing device
GB2526495A (en) Systems and methods for identifying and separately presenting different portions of multimedia content
EP2806425A3 (en) System and method for speaker verification
BR112018010073A2 (pt) monitoramento de cabeça para método e sistema de saída binaural paramétrica
WO2014018590A3 (en) Method and system for collecting and providing application usage analytics
AR080866A1 (es) Codificador de audio o video, decodificador de audio o video y metodos re-lacionados para procesar senales de audio o video multicanal usando una direccion de prediccion variable
BRPI0913460A2 (pt) Aparelho, método e programa de computador para prover um conjunto de indicadores espaciais na base de um sinal de microfone e aparelho para prover um sinal de áudio de dois canais e um conjunto de indicadores espaciais
AU2012204223A8 (en) Communicating channel state information (CSI) of multiple transmission points
WO2011150108A3 (en) Methods and systems for analyzing user preferences to dynamically identify remotely located media for local access
PL2489038T3 (pl) Urządzenie do dostarczania reprezentacji sygnału upmixu na bazie reprezentacji sygnału downmixu, urządzenie do dostarczania strumienia bitów reprezentującego wielokanałowy sygnał audio, sposoby, programy komputerowe i strumień bitów reprezentujący wielokanałowy sygnał audio z zastosowaniem parametru kombinacji liniowej
EP2477342A4 (en) Method and system for acquiring channel state information
EP3737022A4 (en) PROCESS, DEVICE AND EQUIPMENT FOR DETERMINING QUASI-COLOCATION INFORMATION
EP3077963A4 (en) Visual effects system for "big data" analysis workflow editors, distribution platforms, execution engines, and management systems comprising same
WO2014105359A3 (en) Voice inspection guidance
EP2584729A4 (en) Method and system for acquiring channel information
EP3182409A3 (en) Determining the inter-channel time difference of a multi-channel audio signal

Legal Events

Date Code Title Description
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.