HK1163912A1 - Apparatus, method and computer program for upmixing a downmix audio signal - Google Patents

Apparatus, method and computer program for upmixing a downmix audio signal

Info

Publication number
HK1163912A1
HK1163912A1 HK12104067.6A HK12104067A HK1163912A1 HK 1163912 A1 HK1163912 A1 HK 1163912A1 HK 12104067 A HK12104067 A HK 12104067A HK 1163912 A1 HK1163912 A1 HK 1163912A1
Authority
HK
Hong Kong
Prior art keywords
upmixing
computer program
audio signal
downmix audio
downmix
Prior art date
Application number
HK12104067.6A
Other languages
English (en)
Inventor
Matthias Neusinger
Julien Robilliard
Johannes Hilpert
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 HK1163912A1 publication Critical patent/HK1163912A1/xx

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
HK12104067.6A 2009-01-28 2012-04-25 Apparatus, method and computer program for upmixing a downmix audio signal HK1163912A1 (en)

Applications Claiming Priority (3)

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

Publications (1)

Publication Number Publication Date
HK1163912A1 true HK1163912A1 (en) 2012-09-14

Family

ID=41139170

Family Applications (1)

Application Number Title Priority Date Filing Date
HK12104067.6A HK1163912A1 (en) 2009-01-28 2012-04-25 Apparatus, method and computer program for upmixing a downmix audio signal

Country Status (20)

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

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RU2643489C2 (ru) 2013-05-24 2018-02-01 Долби Интернэшнл Аб Аудиокодер и аудиодекодер
WO2014187990A1 (en) 2013-05-24 2014-11-27 Dolby International Ab Efficient coding of audio scenes comprising audio objects
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
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
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
CN110648674B (zh) * 2013-09-12 2023-09-22 杜比国际公司 多声道音频内容的编码
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
EP2854133A1 (en) 2013-09-27 2015-04-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Generation of a downmix signal
BR112016008817B1 (pt) 2013-10-21 2022-03-22 Dolby International Ab Método para reconstruir um sinal de áudio de n canais, sistema de decodificação de áudio, método para codificar um sinal de áudio de n canais e sistema de codificação de áudio
CN105659320B (zh) * 2013-10-21 2019-07-12 杜比国际公司 音频编码器和解码器
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

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Also Published As

Publication number Publication date
WO2010086216A1 (en) 2010-08-05
SG173138A1 (en) 2011-08-29
US8867753B2 (en) 2014-10-21
EP2380167A1 (en) 2011-10-26
TWI417870B (zh) 2013-12-01
US20110317842A1 (en) 2011-12-29
CO6420380A2 (es) 2012-04-16
AR075163A1 (es) 2011-03-16
EP2214161A1 (en) 2010-08-04
KR20110111432A (ko) 2011-10-11
ZA201105417B (en) 2012-03-28
MX2011007924A (es) 2011-08-17
CA2750272A1 (en) 2010-08-05
JP5174973B2 (ja) 2013-04-03
BRPI1005299B1 (pt) 2020-11-24
CN102301420B (zh) 2014-12-24
AU2010209869A1 (en) 2011-08-25
KR101290486B1 (ko) 2013-07-26
MY156497A (en) 2016-02-26
JP2012516461A (ja) 2012-07-19
CN102301420A (zh) 2011-12-28
PL2380167T3 (pl) 2013-06-28
BRPI1005299A2 (pt) 2016-12-06
TW201034005A (en) 2010-09-16
RU2518696C2 (ru) 2014-06-10
RU2011133700A (ru) 2013-03-10
CA2750272C (en) 2015-04-21
EP2380167B1 (en) 2013-01-02
AU2010209869B2 (en) 2013-07-11
ES2401554T3 (es) 2013-04-22

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