CN104205879B - 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置 - Google Patents

从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置 Download PDF

Info

Publication number
CN104205879B
CN104205879B CN201380016236.8A CN201380016236A CN104205879B CN 104205879 B CN104205879 B CN 104205879B CN 201380016236 A CN201380016236 A CN 201380016236A CN 104205879 B CN104205879 B CN 104205879B
Authority
CN
China
Prior art keywords
matrix
function
sampling points
circle
decoding
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
CN201380016236.8A
Other languages
English (en)
Chinese (zh)
Other versions
CN104205879A (zh
Inventor
F.基勒
J.贝姆
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 International AB
Original Assignee
Thomson Licensing SAS
Dolby International AB
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 Thomson Licensing SAS, Dolby International AB filed Critical Thomson Licensing SAS
Priority to CN201710587966.3A priority Critical patent/CN107222824B/zh
Priority to CN201710587968.2A priority patent/CN107182022B/zh
Priority to CN201710587976.7A priority patent/CN107241677B/zh
Priority to CN201710587967.8A priority patent/CN107135460B/zh
Priority to CN201710587980.3A priority patent/CN107172567B/zh
Publication of CN104205879A publication Critical patent/CN104205879A/zh
Application granted granted Critical
Publication of CN104205879B publication Critical patent/CN104205879B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • 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 
    • H04S1/00—Two-channel systems
    • H04S1/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/007—Two-channel systems in which the audio signals are in digital form
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • 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
    • H04S2400/11—Positioning of individual sound objects, e.g. moving airplane, within a sound field
    • 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
    • H04S2420/11—Application of ambisonics in stereophonic audio systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Human Computer Interaction (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Stereophonic System (AREA)
CN201380016236.8A 2012-03-28 2013-03-20 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置 Active CN104205879B (zh)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN201710587966.3A CN107222824B (zh) 2012-03-28 2013-03-20 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置
CN201710587968.2A CN107182022B (zh) 2012-03-28 2013-03-20 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置
CN201710587976.7A CN107241677B (zh) 2012-03-28 2013-03-20 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置
CN201710587967.8A CN107135460B (zh) 2012-03-28 2013-03-20 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置
CN201710587980.3A CN107172567B (zh) 2012-03-28 2013-03-20 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP12305356.3 2012-03-28
EP12305356.3A EP2645748A1 (en) 2012-03-28 2012-03-28 Method and apparatus for decoding stereo loudspeaker signals from a higher-order Ambisonics audio signal
PCT/EP2013/055792 WO2013143934A1 (en) 2012-03-28 2013-03-20 Method and apparatus for decoding stereo loudspeaker signals from a higher-order ambisonics audio signal

Related Child Applications (5)

Application Number Title Priority Date Filing Date
CN201710587980.3A Division CN107172567B (zh) 2012-03-28 2013-03-20 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置
CN201710587966.3A Division CN107222824B (zh) 2012-03-28 2013-03-20 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置
CN201710587968.2A Division CN107182022B (zh) 2012-03-28 2013-03-20 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置
CN201710587967.8A Division CN107135460B (zh) 2012-03-28 2013-03-20 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置
CN201710587976.7A Division CN107241677B (zh) 2012-03-28 2013-03-20 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置

Publications (2)

Publication Number Publication Date
CN104205879A CN104205879A (zh) 2014-12-10
CN104205879B true CN104205879B (zh) 2017-08-11

Family

ID=47915205

Family Applications (6)

Application Number Title Priority Date Filing Date
CN201380016236.8A Active CN104205879B (zh) 2012-03-28 2013-03-20 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置
CN201710587967.8A Active CN107135460B (zh) 2012-03-28 2013-03-20 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置
CN201710587968.2A Active CN107182022B (zh) 2012-03-28 2013-03-20 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置
CN201710587980.3A Active CN107172567B (zh) 2012-03-28 2013-03-20 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置
CN201710587976.7A Active CN107241677B (zh) 2012-03-28 2013-03-20 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置
CN201710587966.3A Active CN107222824B (zh) 2012-03-28 2013-03-20 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置

Family Applications After (5)

Application Number Title Priority Date Filing Date
CN201710587967.8A Active CN107135460B (zh) 2012-03-28 2013-03-20 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置
CN201710587968.2A Active CN107182022B (zh) 2012-03-28 2013-03-20 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置
CN201710587980.3A Active CN107172567B (zh) 2012-03-28 2013-03-20 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置
CN201710587976.7A Active CN107241677B (zh) 2012-03-28 2013-03-20 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置
CN201710587966.3A Active CN107222824B (zh) 2012-03-28 2013-03-20 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置

Country Status (7)

Country Link
US (7) US9666195B2 (enExample)
EP (4) EP2645748A1 (enExample)
JP (6) JP6316275B2 (enExample)
KR (6) KR20250141277A (enExample)
CN (6) CN104205879B (enExample)
TW (10) TWI808842B (enExample)
WO (1) WO2013143934A1 (enExample)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2637427A1 (en) * 2012-03-06 2013-09-11 Thomson Licensing Method and apparatus for playback of a higher-order ambisonics audio signal
EP2645748A1 (en) 2012-03-28 2013-10-02 Thomson Licensing Method and apparatus for decoding stereo loudspeaker signals from a higher-order Ambisonics audio signal
US9769586B2 (en) 2013-05-29 2017-09-19 Qualcomm Incorporated Performing order reduction with respect to higher order ambisonic coefficients
EP2866475A1 (en) 2013-10-23 2015-04-29 Thomson Licensing Method for and apparatus for decoding an audio soundfield representation for audio playback using 2D setups
EP2879408A1 (en) 2013-11-28 2015-06-03 Thomson Licensing Method and apparatus for higher order ambisonics encoding and decoding using singular value decomposition
WO2015172854A1 (en) * 2014-05-13 2015-11-19 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for edge fading amplitude panning
US10770087B2 (en) 2014-05-16 2020-09-08 Qualcomm Incorporated Selecting codebooks for coding vectors decomposed from higher-order ambisonic audio signals
EP3860154B1 (en) * 2014-06-27 2024-02-21 Dolby International AB Method for decoding a compressed hoa dataframe representation of a sound field.
US9747910B2 (en) * 2014-09-26 2017-08-29 Qualcomm Incorporated Switching between predictive and non-predictive quantization techniques in a higher order ambisonics (HOA) framework
WO2016077317A1 (en) * 2014-11-11 2016-05-19 Google Inc. Virtual sound systems and methods
WO2016172254A1 (en) 2015-04-21 2016-10-27 Dolby Laboratories Licensing Corporation Spatial audio signal manipulation
US10334387B2 (en) 2015-06-25 2019-06-25 Dolby Laboratories Licensing Corporation Audio panning transformation system and method
US9961467B2 (en) * 2015-10-08 2018-05-01 Qualcomm Incorporated Conversion from channel-based audio to HOA
US10249312B2 (en) 2015-10-08 2019-04-02 Qualcomm Incorporated Quantization of spatial vectors
WO2017081222A1 (en) * 2015-11-13 2017-05-18 Dolby International Ab Method and apparatus for generating from a multi-channel 2d audio input signal a 3d sound representation signal
US11387006B2 (en) 2015-11-30 2022-07-12 In Hand Health, LLC Client monitoring, management, communication, and performance system and method of use
EP3209036A1 (en) * 2016-02-19 2017-08-23 Thomson Licensing Method, computer readable storage medium, and apparatus for determining a target sound scene at a target position from two or more source sound scenes
JP7140766B2 (ja) 2017-01-27 2022-09-21 アウロ テクノロジーズ エンフェー． オーディオオブジェクトをパンする処理方法及び処理システム
CN106960672B (zh) * 2017-03-30 2020-08-21 国家计算机网络与信息安全管理中心 一种立体声音频的带宽扩展方法与装置
WO2018213159A1 (en) * 2017-05-15 2018-11-22 Dolby Laboratories Licensing Corporation Methods, systems and apparatus for conversion of spatial audio format(s) to speaker signals
US11277705B2 (en) 2017-05-15 2022-03-15 Dolby Laboratories Licensing Corporation Methods, systems and apparatus for conversion of spatial audio format(s) to speaker signals
CN111123202B (zh) * 2020-01-06 2022-01-11 北京大学 一种室内早期反射声定位方法及系统
CN111615045B (zh) * 2020-06-23 2021-06-11 腾讯音乐娱乐科技（深圳）有限公司 音频处理方法、装置、设备及存储介质
CN112530445A (zh) * 2020-11-23 2021-03-19 雷欧尼斯（北京）信息技术有限公司 高阶Ambisonic音频的编解码方法及芯片
CN115038028B (zh) * 2021-03-05 2023-07-28 华为技术有限公司 虚拟扬声器集合确定方法和装置
US20250104719A1 (en) * 2023-09-27 2025-03-27 Apple Inc. Method and System for Producing an Augmented Ambisonic Format

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1690334B1 (en) * 2003-12-05 2007-09-05 Semiconductors Ideas to the Market (ITOM) B.V. Multiplier device
CN101263742A (zh) * 2005-09-13 2008-09-10 皇家飞利浦电子股份有限公司 音频编码
WO2011117399A1 (en) * 2010-03-26 2011-09-29 Thomson Licensing Method and device for decoding an audio soundfield representation for audio playback

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB394325A (en) 1931-12-14 1933-06-14 Alan Dower Blumlein Improvements in and relating to sound-transmission, sound-recording and sound-reproducing systems
US4704728A (en) * 1984-12-31 1987-11-03 Peter Scheiber Signal re-distribution, decoding and processing in accordance with amplitude, phase, and other characteristics
JPH05103391A (ja) 1991-10-07 1993-04-23 Matsushita Electric Ind Co Ltd 指向性制御スピーカシステム
JPH06165281A (ja) 1992-11-18 1994-06-10 Matsushita Electric Ind Co Ltd 指向性スピーカ装置
US7231054B1 (en) 1999-09-24 2007-06-12 Creative Technology Ltd Method and apparatus for three-dimensional audio display
BRPI0308691A2 (pt) * 2002-04-10 2016-11-16 Koninkl Philips Electronics Nv métodos para codificar um sinal de canal múltiplo e para decodificar informação de sinal de canal múltiplo, arranjos para codificar e decodificar um sinal de canal múltiplo, sinal de dados, meio legível por computador, e, dispositivo para comunicar um sinal de canal múltiplo.
FR2847376B1 (fr) 2002-11-19 2005-02-04 France Telecom Procede de traitement de donnees sonores et dispositif d'acquisition sonore mettant en oeuvre ce procede
US7447317B2 (en) * 2003-10-02 2008-11-04 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V Compatible multi-channel coding/decoding by weighting the downmix channel
US7787631B2 (en) 2004-11-30 2010-08-31 Agere Systems Inc. Parametric coding of spatial audio with cues based on transmitted channels
ATE378793T1 (de) * 2005-06-23 2007-11-15 Akg Acoustics Gmbh Methode zur modellierung eines mikrofons
EP1761110A1 (en) * 2005-09-02 2007-03-07 Ecole Polytechnique Fédérale de Lausanne Method to generate multi-channel audio signals from stereo signals
JP2007208709A (ja) 2006-02-02 2007-08-16 Kenwood Corp 音声再生装置
US9215544B2 (en) 2006-03-09 2015-12-15 Orange Optimization of binaural sound spatialization based on multichannel encoding
US8712061B2 (en) 2006-05-17 2014-04-29 Creative Technology Ltd Phase-amplitude 3-D stereo encoder and decoder
US7501605B2 (en) * 2006-08-29 2009-03-10 Lam Research Corporation Method of tuning thermal conductivity of electrostatic chuck support assembly
JP4949477B2 (ja) * 2006-09-25 2012-06-06 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 高次角度項による信号を抽出することでマルチチャンネルオーディオ再生システムの空間分解能を改善したサウンドフィールド
KR101368859B1 (ko) * 2006-12-27 2014-02-27 삼성전자주식회사 개인 청각 특성을 고려한 2채널 입체 음향 재생 방법 및장치
TWI424755B (zh) 2008-01-11 2014-01-21 Dolby Lab Licensing Corp 矩陣解碼器
EP2094032A1 (en) 2008-02-19 2009-08-26 Deutsche Thomson OHG Audio signal, method and apparatus for encoding or transmitting the same and method and apparatus for processing the same
JP4922211B2 (ja) * 2008-03-07 2012-04-25 日本放送協会 音響信号変換装置、その方法及びそのプログラム
KR101335975B1 (ko) * 2008-08-14 2013-12-04 돌비 레버러토리즈 라이쎈싱 코오포레이션 복수의 오디오 입력 신호를 리포맷팅하는 방법
GB0815362D0 (en) * 2008-08-22 2008-10-01 Queen Mary & Westfield College Music collection navigation
WO2010048157A1 (en) * 2008-10-20 2010-04-29 Genaudio, Inc. Audio spatialization and environment simulation
WO2010062479A1 (en) * 2008-11-02 2010-06-03 David Chaum System and apparatus for eyeglass appliance platform
US8705750B2 (en) * 2009-06-25 2014-04-22 Berges Allmenndigitale Rådgivningstjeneste Device and method for converting spatial audio signal
NZ587483A (en) * 2010-08-20 2012-12-21 Ind Res Ltd Holophonic speaker system with filters that are pre-configured based on acoustic transfer functions
JP5826996B2 (ja) 2010-08-30 2015-12-02 日本放送協会 音響信号変換装置およびそのプログラム、ならびに、３次元音響パンニング装置およびそのプログラム
EP2450880A1 (en) 2010-11-05 2012-05-09 Thomson Licensing Data structure for Higher Order Ambisonics audio data
EP2645748A1 (en) * 2012-03-28 2013-10-02 Thomson Licensing Method and apparatus for decoding stereo loudspeaker signals from a higher-order Ambisonics audio signal
US9514620B2 (en) * 2013-09-06 2016-12-06 Immersion Corporation Spatialized haptic feedback based on dynamically scaled values

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1690334B1 (en) * 2003-12-05 2007-09-05 Semiconductors Ideas to the Market (ITOM) B.V. Multiplier device
CN101263742A (zh) * 2005-09-13 2008-09-10 皇家飞利浦电子股份有限公司 音频编码
WO2011117399A1 (en) * 2010-03-26 2011-09-29 Thomson Licensing Method and device for decoding an audio soundfield representation for audio playback

Also Published As

Publication number Publication date
KR20240100475A (ko) 2024-07-01
KR102481338B1 (ko) 2022-12-27
US10433090B2 (en) 2019-10-01
US20240373186A1 (en) 2024-11-07
JP2024138554A (ja) 2024-10-08
CN107172567A (zh) 2017-09-15
US20190364376A1 (en) 2019-11-28
CN107241677A (zh) 2017-10-10
TW202322100A (zh) 2023-06-01
US20220182775A1 (en) 2022-06-09
TW202217798A (zh) 2022-05-01
TWI675366B (zh) 2019-10-21
WO2013143934A1 (en) 2013-10-03
US20240298128A1 (en) 2024-09-05
JP7529370B2 (ja) 2024-08-06
TWI590230B (zh) 2017-07-01
TWI880743B (zh) 2025-04-11
KR102207035B1 (ko) 2021-01-25
CN107182022A (zh) 2017-09-19
TW202416269A (zh) 2024-04-16
TWI734539B (zh) 2021-07-21
US20150081310A1 (en) 2015-03-19
US9666195B2 (en) 2017-05-30
TWI845344B (zh) 2024-06-11
JP7459019B2 (ja) 2024-04-01
EP2832113B1 (en) 2020-07-22
CN104205879A (zh) 2014-12-10
US11172317B2 (en) 2021-11-09
TW201937481A (zh) 2019-09-16
KR102059486B1 (ko) 2019-12-26
CN107182022B (zh) 2019-10-01
KR102678270B1 (ko) 2024-06-26
EP2645748A1 (en) 2013-10-02
EP4297439A2 (en) 2023-12-27
TWI651715B (zh) 2019-02-21
US12495261B2 (en) 2025-12-09
KR102863957B1 (ko) 2025-09-25
KR20250141277A (ko) 2025-09-26
JP2020043590A (ja) 2020-03-19
CN107222824B (zh) 2020-02-21
CN107172567B (zh) 2019-12-03
JP7739546B2 (ja) 2025-09-16
JP6316275B2 (ja) 2018-04-25
US12010501B2 (en) 2024-06-11
KR20200003222A (ko) 2020-01-08
JP2023065646A (ja) 2023-05-12
TW201742051A (zh) 2017-12-01
EP4297439A3 (en) 2024-03-20
US20180160249A1 (en) 2018-06-07
EP2832113A1 (en) 2015-02-04
TWI808842B (zh) 2023-07-11
TW202018698A (zh) 2020-05-16
KR20140138773A (ko) 2014-12-04
JP6622344B2 (ja) 2019-12-18
TWI775497B (zh) 2022-08-21
JP2018137785A (ja) 2018-08-30
CN107222824A (zh) 2017-09-29
CN107135460A (zh) 2017-09-05
TW201921337A (zh) 2019-06-01
JP2015511800A (ja) 2015-04-20
TW202115714A (zh) 2021-04-16
TWI698858B (zh) 2020-07-11
TW202512163A (zh) 2025-03-16
US20170208410A1 (en) 2017-07-20
CN107241677B (zh) 2019-10-11
JP2021153315A (ja) 2021-09-30
TW201344678A (zh) 2013-11-01
TWI666629B (zh) 2019-07-21
US9913062B2 (en) 2018-03-06
KR20230003436A (ko) 2023-01-05
JP6898419B2 (ja) 2021-07-07
CN107135460B (zh) 2019-11-15
EP3796679B1 (en) 2023-08-09
EP3796679A1 (en) 2021-03-24
KR20210009448A (ko) 2021-01-26

Similar Documents

Publication Publication Date Title
CN104205879B (zh) 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置
JP2025186291A (ja) 高次アンビソニックス・オーディオ信号からステレオ・ラウドスピーカー信号を復号する方法および装置
TWI907295B (zh) 從三維度空間性高階保真立體音響聲頻訊號解碼立體聲擴音器訊號之方法及裝置，以及所用解碼矩陣之決定方法
HK40098553A (en) Method and apparatus for decoding stereo loudspeaker signals from a higher-order ambisonics audio signal
HK1238836B (zh) 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置
HK1238838B (zh) 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置
HK1238839B (zh) 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置
HK1238835B (zh) 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置
HK1238837B (zh) 从高阶立体混响声音频信号解码立体声扬声器信号的方法和装置
HK40039379B (en) Method and apparatus for decoding stereo loudspeaker signals from a higher-order ambisonics audio signal
HK1238836A1 (en) Method and apparatus for decoding stereo loudspeaker signals from a higher-order ambisonics audio signal
HK1238838A1 (en) Method and apparatus for decoding stereo loudspeaker signals from a higher-order ambisonics audio signal
HK1238835A1 (en) Method and apparatus for decoding stereo loudspeaker signals from a higher-order ambisonics audio signal
HK1238837A1 (en) Method and apparatus for decoding stereo loudspeaker signals from a higher-order ambisonics audio signal
TW202544794A (zh) 從三維度空間性高階保真立體音響聲頻訊號解碼立體聲擴音器訊號之方法及裝置，以及所用解碼矩陣之決定方法

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right

Effective date of registration: 20170602

Address after: Amsterdam

Applicant after: Dolby International AB

Address before: I Si Eli Murli Nor, France

Applicant before: Thomson Licensing SA

TA01 Transfer of patent application right
GR01 Patent grant
GR01 Patent grant