KR102168054B1 - 멀티 채널 코딩 - Google Patents

멀티 채널 코딩 Download PDF

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Publication number
KR102168054B1
KR102168054B1 KR1020187026599A KR20187026599A KR102168054B1 KR 102168054 B1 KR102168054 B1 KR 102168054B1 KR 1020187026599 A KR1020187026599 A KR 1020187026599A KR 20187026599 A KR20187026599 A KR 20187026599A KR 102168054 B1 KR102168054 B1 KR 102168054B1
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South Korea
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windows
window
signal
decoder
length
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Korean (ko)
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KR20180125475A (ko
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벤카타 수브라마니암 찬드라 세카르 체비얌
벤카트라만 에스 아티
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퀄컴 인코포레이티드
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    • 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
    • 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
    • G10L19/02—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 using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/01—Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/03—Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/05—Generation or adaptation of centre channel in multi-channel audio systems

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereo-Broadcasting Methods (AREA)
KR1020187026599A 2016-03-18 2017-03-17 멀티 채널 코딩 Active KR102168054B1 (ko)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201662310635P 2016-03-18 2016-03-18
US62/310,635 2016-03-18
US15/461,312 US9959877B2 (en) 2016-03-18 2017-03-16 Multi channel coding
US15/461,312 2017-03-16
PCT/US2017/023035 WO2017161315A1 (en) 2016-03-18 2017-03-17 Multi channel coding

Publications (2)

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KR20180125475A KR20180125475A (ko) 2018-11-23
KR102168054B1 true KR102168054B1 (ko) 2020-10-20

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KR1020187026599A Active KR102168054B1 (ko) 2016-03-18 2017-03-17 멀티 채널 코딩

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US (1) US9959877B2 (enExample)
EP (1) EP3430623B1 (enExample)
JP (1) JP6768824B2 (enExample)
KR (1) KR102168054B1 (enExample)
CN (1) CN108780651B (enExample)
BR (1) BR112018068491A2 (enExample)
CA (1) CA3014784C (enExample)
ES (1) ES2783975T3 (enExample)
TW (1) TWI640980B (enExample)
WO (1) WO2017161315A1 (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112352277B (zh) * 2018-07-03 2024-05-31 松下电器（美国）知识产权公司 编码装置及编码方法
WO2020094263A1 (en) 2018-11-05 2020-05-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and audio signal processor, for providing a processed audio signal representation, audio decoder, audio encoder, methods and computer programs
KR102799690B1 (ko) * 2019-06-14 2025-04-23 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 매개변수 인코딩 및 디코딩
CN115039172A (zh) * 2020-02-03 2022-09-09 沃伊斯亚吉公司 多声道声音编解码器中立体声编解码模式之间的切换
CN115917643B (zh) * 2020-06-24 2025-05-02 日本电信电话株式会社 声音信号解码方法、声音信号解码装置、计算机程序产品以及记录介质
US12482473B2 (en) * 2020-06-24 2025-11-25 Ntt, Inc. Sound signal encoding method, sound signal encoder, program, and recording medium

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050137729A1 (en) 2003-12-18 2005-06-23 Atsuhiro Sakurai Time-scale modification stereo audio signals
US20130268264A1 (en) 2010-10-15 2013-10-10 Huawei Technologies Co., Ltd. Signal analyzer, signal analyzing method, signal synthesizer, signal synthesizing, windower, transformer and inverse transformer
US20160035361A1 (en) 2009-01-28 2016-02-04 Dolby International Ab Harmonic Transposition in an Audio Coding Method and System

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7072726B2 (en) * 2002-06-19 2006-07-04 Microsoft Corporation Converting M channels of digital audio data into N channels of digital audio data
US7325023B2 (en) * 2003-09-29 2008-01-29 Sony Corporation Method of making a window type decision based on MDCT data in audio encoding
US20050276430A1 (en) * 2004-05-28 2005-12-15 Microsoft Corporation Fast headphone virtualization
EP2345030A2 (en) * 2008-10-08 2011-07-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Multi-resolution switched audio encoding/decoding scheme
IL286761B (en) * 2010-04-09 2022-09-01 Dolby Int Ab An uplink mixer is active in predictive or non-predictive mode
EP2980791A1 (en) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Processor, method and computer program for processing an audio signal using truncated analysis or synthesis window overlap portions

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050137729A1 (en) 2003-12-18 2005-06-23 Atsuhiro Sakurai Time-scale modification stereo audio signals
US20160035361A1 (en) 2009-01-28 2016-02-04 Dolby International Ab Harmonic Transposition in an Audio Coding Method and System
US20130268264A1 (en) 2010-10-15 2013-10-10 Huawei Technologies Co., Ltd. Signal analyzer, signal analyzing method, signal synthesizer, signal synthesizing, windower, transformer and inverse transformer

Also Published As

Publication number Publication date
JP6768824B2 (ja) 2020-10-14
CA3014784A1 (en) 2017-09-21
EP3430623B1 (en) 2020-01-01
KR20180125475A (ko) 2018-11-23
US9959877B2 (en) 2018-05-01
CN108780651A (zh) 2018-11-09
CN108780651B (zh) 2023-05-30
EP3430623A1 (en) 2019-01-23
CA3014784C (en) 2023-04-25
TW201737242A (zh) 2017-10-16
BR112018068491A2 (pt) 2019-01-22
US20170270936A1 (en) 2017-09-21
JP2019512737A (ja) 2019-05-16
TWI640980B (zh) 2018-11-11
WO2017161315A1 (en) 2017-09-21
ES2783975T3 (es) 2020-09-21

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