BRPI1005299A2 - aparelho, método e programa de computador para realizar o upmmix em um sinal de áudio downmix - Google Patents

aparelho, método e programa de computador para realizar o upmmix em um sinal de áudio downmix

Info

Publication number
BRPI1005299A2
BRPI1005299A2 BRPI1005299A BRPI1005299A BRPI1005299A2 BR PI1005299 A2 BRPI1005299 A2 BR PI1005299A2 BR PI1005299 A BRPI1005299 A BR PI1005299A BR PI1005299 A BRPI1005299 A BR PI1005299A BR PI1005299 A2 BRPI1005299 A2 BR PI1005299A2
Authority
BR
Brazil
Prior art keywords
upmixing
computer program
audio signal
downmix audio
downmix
Prior art date
Application number
BRPI1005299A
Other languages
English (en)
Inventor
Johannes Hilpert
Julien Robilliard
Matthias Neusinger
Original Assignee
Fraunhofer Ges Zur Förderung Der Angewandten Ten Forschung 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 Förderung Der Angewandten Ten Forschung E V filed Critical Fraunhofer Ges Zur Förderung Der Angewandten Ten Forschung E V
Publication of BRPI1005299A2 publication Critical patent/BRPI1005299A2/pt
Publication of BRPI1005299B1 publication Critical patent/BRPI1005299B1/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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Mathematical Physics (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Stereophonic System (AREA)
BRPI1005299-2A 2009-01-28 2010-01-12 aparelho e método para realizar o upmmix em um sinal de áudio downmix BRPI1005299B1 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US14781509P 2009-01-28 2009-01-28
US61/147,815 2009-01-28
EP09007086A EP2214161A1 (en) 2009-01-28 2009-05-27 Apparatus, method and computer program for upmixing a downmix audio signal
EP09007086.3 2009-05-27
PCT/EP2010/050279 WO2010086216A1 (en) 2009-01-28 2010-01-12 Apparatus, method and computer program for upmixing a downmix audio signal

Publications (2)

Publication Number Publication Date
BRPI1005299A2 true BRPI1005299A2 (pt) 2016-12-06
BRPI1005299B1 BRPI1005299B1 (pt) 2020-11-24

Family

ID=41139170

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI1005299-2A BRPI1005299B1 (pt) 2009-01-28 2010-01-12 aparelho e método para realizar o upmmix em um sinal de áudio downmix

Country Status (20)

Country Link
US (1) US8867753B2 (pt)
EP (2) EP2214161A1 (pt)
JP (1) JP5174973B2 (pt)
KR (1) KR101290486B1 (pt)
CN (1) CN102301420B (pt)
AR (1) AR075163A1 (pt)
AU (1) AU2010209869B2 (pt)
BR (1) BRPI1005299B1 (pt)
CA (1) CA2750272C (pt)
CO (1) CO6420380A2 (pt)
ES (1) ES2401554T3 (pt)
HK (1) HK1163912A1 (pt)
MX (1) MX2011007924A (pt)
MY (1) MY156497A (pt)
PL (1) PL2380167T3 (pt)
RU (1) RU2518696C2 (pt)
SG (1) SG173138A1 (pt)
TW (1) TWI417870B (pt)
WO (1) WO2010086216A1 (pt)
ZA (1) ZA201105417B (pt)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5513976B2 (ja) * 2010-05-12 2014-06-04 株式会社東芝 超音波診断装置
KR101666465B1 (ko) * 2010-07-22 2016-10-17 삼성전자주식회사 다채널 오디오 신호 부호화/복호화 장치 및 방법
US9236064B2 (en) * 2012-02-15 2016-01-12 Microsoft Technology Licensing, Llc Sample rate converter with automatic anti-aliasing filter
MX346944B (es) 2013-01-29 2017-04-06 Fraunhofer Ges Forschung Aparato y metodo para generar una señal de frecuencia reforzada mediante la suavizacion temporal de las subbandas.
BR112015025092B1 (pt) * 2013-04-05 2022-01-11 Dolby International Ab Sistema de processamento de áudio e método para processar um fluxo de bits de áudio
CN110085240B (zh) * 2013-05-24 2023-05-23 杜比国际公司 包括音频对象的音频场景的高效编码
EP3961622B1 (en) 2013-05-24 2023-11-01 Dolby International AB Audio encoder
US9892737B2 (en) 2013-05-24 2018-02-13 Dolby International Ab Efficient coding of audio scenes comprising audio objects
EP2830335A3 (en) 2013-07-22 2015-02-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method, and computer program for mapping first and second input channels to at least one output channel
EP2830052A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio decoder, audio encoder, method for providing at least four audio channel signals on the basis of an encoded representation, method for providing an encoded representation on the basis of at least four audio channel signals and computer program using a bandwidth extension
EP2838086A1 (en) * 2013-07-22 2015-02-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. In an reduction of comb filter artifacts in multi-channel downmix with adaptive phase alignment
EP3293734B1 (en) * 2013-09-12 2019-05-15 Dolby International AB Decoding of multichannel audio content
EP2854133A1 (en) 2013-09-27 2015-04-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Generation of a downmix signal
TWI557724B (zh) * 2013-09-27 2016-11-11 杜比實驗室特許公司 用於將 n 聲道音頻節目編碼之方法、用於恢復 n 聲道音頻節目的 m 個聲道之方法、被配置成將 n 聲道音頻節目編碼之音頻編碼器及被配置成執行 n 聲道音頻節目的恢復之解碼器
KR102381216B1 (ko) * 2013-10-21 2022-04-08 돌비 인터네셔널 에이비 오디오 신호들의 파라메트릭 재구성
US10049683B2 (en) * 2013-10-21 2018-08-14 Dolby International Ab Audio encoder and decoder
WO2015150384A1 (en) 2014-04-01 2015-10-08 Dolby International Ab Efficient coding of audio scenes comprising audio objects
TWI587286B (zh) * 2014-10-31 2017-06-11 杜比國際公司 音頻訊號之解碼和編碼的方法及系統、電腦程式產品、與電腦可讀取媒體
CN107818790B (zh) * 2017-11-16 2020-08-11 苏州麦迪斯顿医疗科技股份有限公司 一种多路音频混音方法及装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2105269C (en) * 1992-10-09 1998-08-25 Yair Shoham Time-frequency interpolation with application to low rate speech coding
KR20070001111A (ko) * 2004-01-28 2007-01-03 코닌클리케 필립스 일렉트로닉스 엔.브이. 신호를 시간 스케일링하는 방법 및 장치
DE602005005640T2 (de) 2004-03-01 2009-05-14 Dolby Laboratories Licensing Corp., San Francisco Mehrkanalige audiocodierung
CN1930914B (zh) * 2004-03-04 2012-06-27 艾格瑞***有限公司 对多声道音频信号进行编码和合成的方法和装置
KR100663729B1 (ko) * 2004-07-09 2007-01-02 한국전자통신연구원 가상 음원 위치 정보를 이용한 멀티채널 오디오 신호부호화 및 복호화 방법 및 장치
TWI498882B (zh) * 2004-08-25 2015-09-01 Dolby Lab Licensing Corp 音訊解碼器
SE0402651D0 (sv) * 2004-11-02 2004-11-02 Coding Tech Ab Advanced methods for interpolation and parameter signalling
US20070055510A1 (en) 2005-07-19 2007-03-08 Johannes Hilpert Concept for bridging the gap between parametric multi-channel audio coding and matrixed-surround multi-channel coding
WO2007032648A1 (en) * 2005-09-14 2007-03-22 Lg Electronics Inc. Method and apparatus for decoding an audio signal
US20080221907A1 (en) 2005-09-14 2008-09-11 Lg Electronics, Inc. Method and Apparatus for Decoding an Audio Signal
KR100888474B1 (ko) 2005-11-21 2009-03-12 삼성전자주식회사 멀티채널 오디오 신호의 부호화/복호화 장치 및 방법
CN101379766B (zh) 2006-03-29 2011-12-14 株式会社日立制作所 宽带无线通信中的资源分配方法、基站装置以及终端装置
CN101518103B (zh) * 2006-09-14 2016-03-23 皇家飞利浦电子股份有限公司 多通道信号的甜点操纵
US7647229B2 (en) * 2006-10-18 2010-01-12 Nokia Corporation Time scaling of multi-channel audio signals

Also Published As

Publication number Publication date
WO2010086216A1 (en) 2010-08-05
AR075163A1 (es) 2011-03-16
ZA201105417B (en) 2012-03-28
HK1163912A1 (en) 2012-09-14
CO6420380A2 (es) 2012-04-16
EP2214161A1 (en) 2010-08-04
TW201034005A (en) 2010-09-16
US8867753B2 (en) 2014-10-21
SG173138A1 (en) 2011-08-29
CA2750272A1 (en) 2010-08-05
CA2750272C (en) 2015-04-21
KR20110111432A (ko) 2011-10-11
KR101290486B1 (ko) 2013-07-26
MY156497A (en) 2016-02-26
JP5174973B2 (ja) 2013-04-03
EP2380167B1 (en) 2013-01-02
CN102301420A (zh) 2011-12-28
AU2010209869B2 (en) 2013-07-11
BRPI1005299B1 (pt) 2020-11-24
RU2518696C2 (ru) 2014-06-10
PL2380167T3 (pl) 2013-06-28
JP2012516461A (ja) 2012-07-19
US20110317842A1 (en) 2011-12-29
ES2401554T3 (es) 2013-04-22
CN102301420B (zh) 2014-12-24
MX2011007924A (es) 2011-08-17
RU2011133700A (ru) 2013-03-10
TWI417870B (zh) 2013-12-01
EP2380167A1 (en) 2011-10-26
AU2010209869A1 (en) 2011-08-25

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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 Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]
B15K Others concerning applications: alteration of classification

Free format text: AS CLASSIFICACOES ANTERIORES ERAM: G10L 19/00 , H04B 1/66

Ipc: G10L 19/008 (2013.01)

B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 24/11/2020, OBSERVADAS AS CONDICOES LEGAIS.