HK1163915A1 - Apparatus, method and computer program for upmixing a downmix audio signal using a phase value smoothing - Google Patents

Apparatus, method and computer program for upmixing a downmix audio signal using a phase value smoothing

Info

Publication number
HK1163915A1
HK1163915A1 HK12104684.9A HK12104684A HK1163915A1 HK 1163915 A1 HK1163915 A1 HK 1163915A1 HK 12104684 A HK12104684 A HK 12104684A HK 1163915 A1 HK1163915 A1 HK 1163915A1
Authority
HK
Hong Kong
Prior art keywords
upmixing
computer program
audio signal
phase value
downmix audio
Prior art date
Application number
HK12104684.9A
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 HK1163915A1 publication Critical patent/HK1163915A1/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • 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
    • H04S2420/03—Application of parametric coding in stereophonic audio systems

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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
HK12104684.9A 2009-04-08 2012-05-14 Apparatus, method and computer program for upmixing a downmix audio signal using a phase value smoothing HK1163915A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16760709P 2009-04-08 2009-04-08
PCT/EP2010/054448 WO2010115850A1 (en) 2009-04-08 2010-04-01 Apparatus, method and computer program for upmixing a downmix audio signal using a phase value smoothing

Publications (1)

Publication Number Publication Date
HK1163915A1 true HK1163915A1 (en) 2012-09-14

Family

ID=42335156

Family Applications (2)

Application Number Title Priority Date Filing Date
HK12104684.9A HK1163915A1 (en) 2009-04-08 2012-05-14 Apparatus, method and computer program for upmixing a downmix audio signal using a phase value smoothing
HK12106712.0A HK1166174A1 (en) 2009-04-08 2012-07-10 Apparatus, method and computer program for upmixing a downmix audio signal using a phase value smoothing

Family Applications After (1)

Application Number Title Priority Date Filing Date
HK12106712.0A HK1166174A1 (en) 2009-04-08 2012-07-10 Apparatus, method and computer program for upmixing a downmix audio signal using a phase value smoothing

Country Status (20)

Country Link
US (6) US9053700B2 (ja)
EP (2) EP2405425B1 (ja)
JP (1) JP5358691B2 (ja)
KR (1) KR101356972B1 (ja)
CN (2) CN103325374B (ja)
AR (1) AR076238A1 (ja)
AU (1) AU2010233863B2 (ja)
BR (1) BRPI1004215B1 (ja)
CA (1) CA2746524C (ja)
CO (1) CO6501150A2 (ja)
ES (2) ES2452569T3 (ja)
HK (2) HK1163915A1 (ja)
MX (1) MX2011006248A (ja)
MY (1) MY160545A (ja)
PL (2) PL2405425T3 (ja)
RU (1) RU2550525C2 (ja)
SG (1) SG174117A1 (ja)
TW (1) TWI420512B (ja)
WO (1) WO2010115850A1 (ja)
ZA (1) ZA201103703B (ja)

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CN111816194B (zh) 2014-10-31 2024-08-09 杜比国际公司 多通道音频信号的参数编码和解码
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KR102517583B1 (ko) 2015-06-26 2023-04-03 칸도우 랩스 에스에이 고속 통신 시스템
US10224042B2 (en) * 2016-10-31 2019-03-05 Qualcomm Incorporated Encoding of multiple audio signals
CN110114826B (zh) * 2016-11-08 2023-09-05 弗劳恩霍夫应用研究促进协会 使用相位补偿对多声道信号进行下混合或上混合的装置和方法
PL3539127T3 (pl) * 2016-11-08 2021-04-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Moduł downmixu i sposób downmixu co najmniej dwóch kanałów oraz koder wielokanałowy i dekoder wielokanałowy
US10366695B2 (en) 2017-01-19 2019-07-30 Qualcomm Incorporated Inter-channel phase difference parameter modification
CN111684772B (zh) 2017-12-28 2023-06-16 康杜实验室公司 同步切换多输入解调比较器
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CN108770120B (zh) * 2018-05-25 2021-03-23 上海乘讯信息科技有限公司 一种智能通道状态灯
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Also Published As

Publication number Publication date
US10580418B2 (en) 2020-03-03
TWI420512B (zh) 2013-12-21
CO6501150A2 (es) 2012-08-15
US9734832B2 (en) 2017-08-15
US20110255714A1 (en) 2011-10-20
EP2405425A1 (en) 2012-01-11
KR101356972B1 (ko) 2014-02-05
KR20110095339A (ko) 2011-08-24
AU2010233863A1 (en) 2010-10-14
BRPI1004215A2 (pt) 2016-12-06
PL2405425T3 (pl) 2014-12-31
US9053700B2 (en) 2015-06-09
RU2550525C2 (ru) 2015-05-10
CA2746524A1 (en) 2010-10-14
EP2405425B1 (en) 2014-07-23
PL2394268T3 (pl) 2014-06-30
US20220358939A1 (en) 2022-11-10
US20170301356A1 (en) 2017-10-19
HK1166174A1 (en) 2012-10-19
EP2394268B1 (en) 2014-01-08
JP5358691B2 (ja) 2013-12-04
WO2010115850A1 (en) 2010-10-14
US20150131801A1 (en) 2015-05-14
MY160545A (en) 2017-03-15
CN102257563A (zh) 2011-11-23
EP2394268A1 (en) 2011-12-14
AR076238A1 (es) 2011-05-26
BRPI1004215B1 (pt) 2021-08-17
US20200168233A1 (en) 2020-05-28
RU2011123124A (ru) 2012-12-20
ZA201103703B (en) 2012-02-29
ES2511390T3 (es) 2014-10-22
US20180358026A1 (en) 2018-12-13
SG174117A1 (en) 2011-10-28
US11430453B2 (en) 2022-08-30
JP2012512438A (ja) 2012-05-31
TW201118860A (en) 2011-06-01
CN103325374B (zh) 2017-06-06
CN102257563B (zh) 2013-09-25
MX2011006248A (es) 2011-07-20
CN103325374A (zh) 2013-09-25
AU2010233863B2 (en) 2013-09-26
CA2746524C (en) 2015-03-03
US10056087B2 (en) 2018-08-21
ES2452569T3 (es) 2014-04-02

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