JP6046274B2 - 上方混合されたオーディオ信号のチャネル間コヒーレンスの制御方法 - Google Patents

上方混合されたオーディオ信号のチャネル間コヒーレンスの制御方法 Download PDF

Info

Publication number
JP6046274B2
JP6046274B2 JP2015556960A JP2015556960A JP6046274B2 JP 6046274 B2 JP6046274 B2 JP 6046274B2 JP 2015556960 A JP2015556960 A JP 2015556960A JP 2015556960 A JP2015556960 A JP 2015556960A JP 6046274 B2 JP6046274 B2 JP 6046274B2
Authority
JP
Japan
Prior art keywords
audio data
channel
decorrelation
audio
channels
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
JP2015556960A
Other languages
English (en)
Japanese (ja)
Other versions
JP2016510434A (ja
Inventor
イェン，クー−チェ
メルコーテ，ヴィナイ
フェラーズ，マシュー
エイ ダヴィッドソン，グラント
エイ ダヴィッドソン，グラント
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dolby Laboratories Licensing Corp
Original Assignee
Dolby Laboratories Licensing Corp
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 Dolby Laboratories Licensing Corp filed Critical Dolby Laboratories Licensing Corp
Publication of JP2016510434A publication Critical patent/JP2016510434A/ja
Application granted granted Critical
Publication of JP6046274B2 publication Critical patent/JP6046274B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • 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 
    • 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
    • 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
    • H04S2420/07—Synergistic effects of band splitting and sub-band processing
    • 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 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Mathematical Physics (AREA)
  • Stereophonic System (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Telephonic Communication Services (AREA)
JP2015556960A 2013-02-14 2014-01-22 上方混合されたオーディオ信号のチャネル間コヒーレンスの制御方法 Active JP6046274B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201361764857P 2013-02-14 2013-02-14
US61/764,857 2013-02-14
PCT/US2014/012599 WO2014126689A1 (en) 2013-02-14 2014-01-22 Methods for controlling the inter-channel coherence of upmixed audio signals

Publications (2)

Publication Number Publication Date
JP2016510434A JP2016510434A (ja) 2016-04-07
JP6046274B2 true JP6046274B2 (ja) 2016-12-14

Family

ID=50071787

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2015556960A Active JP6046274B2 (ja) 2013-02-14 2014-01-22 上方混合されたオーディオ信号のチャネル間コヒーレンスの制御方法

Country Status (9)

Country Link
US (1) US9754596B2 (enExample)
EP (1) EP2956935B1 (enExample)
JP (1) JP6046274B2 (enExample)
KR (1) KR101729930B1 (enExample)
CN (1) CN104981867B (enExample)
BR (1) BR112015018522B1 (enExample)
IN (1) IN2015MN01952A (enExample)
RU (1) RU2630370C9 (enExample)
WO (1) WO2014126689A1 (enExample)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PT3022949T (pt) * 2013-07-22 2018-01-23 Fraunhofer Ges Forschung Descodificador de áudio multicanal, codificador de áudio de multicanal, métodos, programa de computador e representação de áudio codificada usando uma descorrelação dos sinais de áudio renderizados
EP2830333A1 (en) * 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Multi-channel decorrelator, multi-channel audio decoder, multi-channel audio encoder, methods and computer program using a premix of decorrelator input 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
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
KR102486338B1 (ko) * 2014-10-31 2023-01-10 돌비 인터네셔널 에이비 멀티채널 오디오 신호의 파라메트릭 인코딩 및 디코딩
US12125492B2 (en) 2015-09-25 2024-10-22 Voiceage Coproration Method and system for decoding left and right channels of a stereo sound signal
RU2765565C2 (ru) 2015-09-25 2022-02-01 Войсэйдж Корпорейшн Способ и система для кодирования стереофонического звукового сигнала с использованием параметров кодирования первичного канала для кодирования вторичного канала
GB2549532A (en) * 2016-04-22 2017-10-25 Nokia Technologies Oy Merging audio signals with spatial metadata
EP3453190A4 (en) * 2016-05-06 2020-01-15 DTS, Inc. SYSTEMS FOR IMMERSIVE AUDIO PLAYBACK
EP3545693B1 (en) * 2016-11-23 2020-06-24 Telefonaktiebolaget LM Ericsson (PUBL) Method and apparatus for adaptive control of decorrelation filters
CN108966110B (zh) * 2017-05-19 2020-02-14 华为技术有限公司 声音信号处理方法、装置及系统、终端及存储介质
TWI812658B (zh) * 2017-12-19 2023-08-21 瑞典商都比國際公司 用於統一語音及音訊之解碼及編碼去關聯濾波器之改良之方法、裝置及系統
GB2572650A (en) * 2018-04-06 2019-10-09 Nokia Technologies Oy Spatial audio parameters and associated spatial audio playback
CN110047503B (zh) * 2018-09-25 2021-04-16 上海无线通信研究中心 一种声波的多径效应抑制方法
CN111107024B (zh) * 2018-10-25 2022-01-28 航天科工惯性技术有限公司 时间与频率混合编码的防错解码方法
CN109557509B (zh) * 2018-11-23 2020-08-11 安徽四创电子股份有限公司 一种用于改善脉间干扰的双脉冲信号合成器
GB2630112B (en) * 2023-05-17 2026-07-08 Sony Interactive Entertainment Europe Ltd A method for decorrelating a set of simulated audio signals
GB2634513A (en) * 2023-10-09 2025-04-16 Sony Interactive Entertainment Europe Ltd A method for decorrelating a set of simulated audio signals in a virtual environment
WO2025160833A1 (zh) * 2024-01-31 2025-08-07 北京小米移动软件有限公司 编解码方法、装置以及存储介质

Family Cites Families (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8308843D0 (en) 1983-03-30 1983-05-11 Clark A P Apparatus for adjusting receivers of data transmission channels
CN1256851A (zh) 1998-02-13 2000-06-14 皇家菲利浦电子有限公司 环绕声重放系统、声音/图象重放系统、环绕声处理装置和输入环绕声信号的处理方法
US6175631B1 (en) 1999-07-09 2001-01-16 Stephen A. Davis Method and apparatus for decorrelating audio signals
US7218665B2 (en) 2003-04-25 2007-05-15 Bae Systems Information And Electronic Systems Integration Inc. Deferred decorrelating decision-feedback detector for supersaturated communications
SE0301273D0 (sv) 2003-04-30 2003-04-30 Coding Technologies Sweden Ab Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods
JP4867914B2 (ja) 2004-03-01 2012-02-01 ドルビー ラボラトリーズ ライセンシング コーポレイション マルチチャンネルオーディオコーディング
US20090299756A1 (en) 2004-03-01 2009-12-03 Dolby Laboratories Licensing Corporation Ratio of speech to non-speech audio such as for elderly or hearing-impaired listeners
JP5032978B2 (ja) 2004-04-05 2012-09-26 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ ステレオコーディング及びデコーディングの方法及び装置
SE0400998D0 (sv) * 2004-04-16 2004-04-16 Cooding Technologies Sweden Ab Method for representing multi-channel audio signals
JP4989468B2 (ja) * 2004-07-14 2012-08-01 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ オーディオチャネル変換
TWI393121B (zh) 2004-08-25 2013-04-11 杜比實驗室特許公司 處理一組n個聲音信號之方法與裝置及與其相關聯之電腦程式
SE0402649D0 (sv) 2004-11-02 2004-11-02 Coding Tech Ab Advanced methods of creating orthogonal signals
US7787631B2 (en) 2004-11-30 2010-08-31 Agere Systems Inc. Parametric coding of spatial audio with cues based on transmitted channels
US7961890B2 (en) * 2005-04-15 2011-06-14 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung, E.V. Multi-channel hierarchical audio coding with compact side information
AU2006255662B2 (en) 2005-06-03 2012-08-23 Dolby Laboratories Licensing Corporation Apparatus and method for encoding audio signals with decoding instructions
CN102013256B (zh) * 2005-07-14 2013-12-18 皇家飞利浦电子股份有限公司 用于生成多个输出音频通道的方法及设备
CN101223821B (zh) 2005-07-15 2011-12-07 松下电器产业株式会社 音频解码器
RU2383942C2 (ru) 2005-08-30 2010-03-10 ЭлДжи ЭЛЕКТРОНИКС ИНК. Способ и устройство для декодирования аудиосигнала
JP5108768B2 (ja) 2005-08-30 2012-12-26 エルジー エレクトロニクス インコーポレイティド オーディオ信号をエンコーディング及びデコーディングするための装置とその方法
US7974713B2 (en) 2005-10-12 2011-07-05 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Temporal and spatial shaping of multi-channel audio signals
US7536299B2 (en) 2005-12-19 2009-05-19 Dolby Laboratories Licensing Corporation Correlating and decorrelating transforms for multiple description coding systems
EP1979898B1 (en) 2006-01-19 2014-08-06 Lg Electronics Inc. Method and apparatus for processing a media signal
TW200742275A (en) 2006-03-21 2007-11-01 Dolby Lab Licensing Corp Low bit rate audio encoding and decoding in which multiple channels are represented by fewer channels and auxiliary information
CA2646961C (en) 2006-03-28 2013-09-03 Sascha Disch Enhanced method for signal shaping in multi-channel audio reconstruction
ATE448638T1 (de) 2006-04-13 2009-11-15 Fraunhofer Ges Forschung Audiosignaldekorrelator
US8379868B2 (en) 2006-05-17 2013-02-19 Creative Technology Ltd Spatial audio coding based on universal spatial cues
EP1883067A1 (en) 2006-07-24 2008-01-30 Deutsche Thomson-Brandt Gmbh Method and apparatus for lossless encoding of a source signal, using a lossy encoded data stream and a lossless extension data stream
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
RU2406166C2 (ru) 2007-02-14 2010-12-10 ЭлДжи ЭЛЕКТРОНИКС ИНК. Способы и устройства кодирования и декодирования основывающихся на объектах ориентированных аудиосигналов
DE102007018032B4 (de) * 2007-04-17 2010-11-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Erzeugung dekorrelierter Signale
MX2009011405A (es) * 2007-04-26 2009-11-05 Dolby Sweden Ab Aparato y metodo para sintetizar una señal de salida.
EP2162882B1 (en) 2007-06-08 2010-12-29 Dolby Laboratories Licensing Corporation Hybrid derivation of surround sound audio channels by controllably combining ambience and matrix-decoded signal components
US8046214B2 (en) 2007-06-22 2011-10-25 Microsoft Corporation Low complexity decoder for complex transform coding of multi-channel sound
US8064624B2 (en) * 2007-07-19 2011-11-22 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Method and apparatus for generating a stereo signal with enhanced perceptual quality
US20100040243A1 (en) 2008-08-14 2010-02-18 Johnston James D Sound Field Widening and Phase Decorrelation System and Method
EP2209114B1 (en) 2007-10-31 2014-05-14 Panasonic Corporation Speech coding/decoding apparatus/method
US9196258B2 (en) 2008-05-12 2015-11-24 Broadcom Corporation Spectral shaping for speech intelligibility enhancement
EP2144229A1 (en) * 2008-07-11 2010-01-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Efficient use of phase information in audio encoding and decoding
JP5326465B2 (ja) 2008-09-26 2013-10-30 富士通株式会社 オーディオ復号方法、装置、及びプログラム
TWI413109B (zh) 2008-10-01 2013-10-21 Dolby Lab Licensing Corp 用於上混系統之解相關器
EP2214162A1 (en) 2009-01-28 2010-08-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Upmixer, method and computer program for upmixing a downmix audio signal
US8497467B2 (en) 2009-04-13 2013-07-30 Telcordia Technologies, Inc. Optical filter control
KR101388901B1 (ko) 2009-06-24 2014-04-24 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 오디오 신호 디코더, 오디오 신호를 디코딩하는 방법 및 캐스케이드된 오디오 객체 처리 단계들을 이용한 컴퓨터 프로그램
GB2465047B (en) 2009-09-03 2010-09-22 Peter Graham Craven Prediction of signals
DK2510515T3 (da) 2009-12-07 2014-05-19 Dolby Lab Licensing Corp Dekodning af flerkanalaudio-kodede bitstrømme ved anvendelse af adaptiv hybrid transformation
EP2360681A1 (en) * 2010-01-15 2011-08-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for extracting a direct/ambience signal from a downmix signal and spatial parametric information
TWI444989B (zh) 2010-01-22 2014-07-11 Dolby Lab Licensing Corp 針對改良多通道上混使用多通道解相關之技術
CA3045686C (en) 2010-04-09 2020-07-14 Dolby International Ab Audio upmixer operable in prediction or non-prediction mode
TWI516138B (zh) 2010-08-24 2016-01-01 杜比國際公司 從二聲道音頻訊號決定參數式立體聲參數之系統與方法及其電腦程式產品
EP2609590B1 (en) 2010-08-25 2015-05-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus for decoding a signal comprising transients using a combining unit and a mixer
US8908874B2 (en) 2010-09-08 2014-12-09 Dts, Inc. Spatial audio encoding and reproduction
EP2477188A1 (en) 2011-01-18 2012-07-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encoding and decoding of slot positions of events in an audio signal frame
AU2012230440C1 (en) 2011-03-18 2016-09-08 Dolby International Ab Frame element positioning in frames of a bitstream representing audio content
CN102903368B (zh) 2011-07-29 2017-04-12 杜比实验室特许公司 用于卷积盲源分离的方法和设备
WO2013017435A1 (en) 2011-08-04 2013-02-07 Dolby International Ab Improved fm stereo radio receiver by using parametric stereo
US8527264B2 (en) 2012-01-09 2013-09-03 Dolby Laboratories Licensing Corporation Method and system for encoding audio data with adaptive low frequency compensation
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

Also Published As

Publication number Publication date
WO2014126689A1 (en) 2014-08-21
BR112015018522B1 (pt) 2021-12-14
RU2630370C2 (ru) 2017-09-07
CN104981867B (zh) 2018-03-30
EP2956935B1 (en) 2017-01-04
EP2956935A1 (en) 2015-12-23
IN2015MN01952A (enExample) 2015-08-28
RU2630370C9 (ru) 2017-09-26
KR101729930B1 (ko) 2017-04-25
RU2015133289A (ru) 2017-02-15
CN104981867A (zh) 2015-10-14
HK1213687A1 (en) 2016-07-08
US20160005406A1 (en) 2016-01-07
US9754596B2 (en) 2017-09-05
JP2016510434A (ja) 2016-04-07
BR112015018522A2 (pt) 2017-07-18
KR20150106962A (ko) 2015-09-22

Similar Documents

Publication Publication Date Title
JP6038355B2 (ja) オーディオ処理システムにおける信号脱相関
JP6138279B2 (ja) 推定された空間的パラメータを使ったオーディオ信号の向上
EP2956935B1 (en) Controlling the inter-channel coherence of upmixed audio signals
US9830917B2 (en) Methods for audio signal transient detection and decorrelation control
US20150371646A1 (en) Time-Varying Filters for Generating Decorrelation Signals
HK1213686B (en) Signal decorrelation in an audio processing system
HK1218674B (en) Audio signal enhancement using estimated spatial parameters
HK1213687B (en) Controlling the inter-channel coherence of upmixed audio signals

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20150805

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20150805

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20161101

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20161116

R150 Certificate of patent or registration of utility model

Ref document number: 6046274

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250