ATE215295T1 - Verfahren und vorrichtung zur codierung und decodierung mehrere tonkanäle mit geringer bitrate - Google Patents

Verfahren und vorrichtung zur codierung und decodierung mehrere tonkanäle mit geringer bitrate

Info

Publication number
ATE215295T1
ATE215295T1 AT98931197T AT98931197T ATE215295T1 AT E215295 T1 ATE215295 T1 AT E215295T1 AT 98931197 T AT98931197 T AT 98931197T AT 98931197 T AT98931197 T AT 98931197T AT E215295 T1 ATE215295 T1 AT E215295T1
Authority
AT
Austria
Prior art keywords
signals
spatial
signal
smoothing
coding
Prior art date
Application number
AT98931197T
Other languages
German (de)
English (en)
Inventor
Mark F Davis
Matthew C Fellers
Original Assignee
Dolby Lab 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 Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Application granted granted Critical
Publication of ATE215295T1 publication Critical patent/ATE215295T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H04H20/88—Stereophonic broadcast systems
    • 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
    • G10L19/0204—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 using subband decomposition
    • G10L19/0208—Subband vocoders
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/665—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using psychoacoustic properties of the ear, e.g. masking effect
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
    • 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)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
AT98931197T 1997-07-16 1998-06-19 Verfahren und vorrichtung zur codierung und decodierung mehrere tonkanäle mit geringer bitrate ATE215295T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/895,496 US5890125A (en) 1997-07-16 1997-07-16 Method and apparatus for encoding and decoding multiple audio channels at low bit rates using adaptive selection of encoding method
PCT/US1998/008647 WO1999004498A2 (en) 1997-07-16 1998-06-19 Method and apparatus for encoding and decoding multiple audio channels at low bit rates

Publications (1)

Publication Number Publication Date
ATE215295T1 true ATE215295T1 (de) 2002-04-15

Family

ID=25404588

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98931197T ATE215295T1 (de) 1997-07-16 1998-06-19 Verfahren und vorrichtung zur codierung und decodierung mehrere tonkanäle mit geringer bitrate

Country Status (12)

Country Link
US (1) US5890125A (enExample)
EP (1) EP1016320B1 (enExample)
JP (1) JP4223679B2 (enExample)
KR (1) KR100550399B1 (enExample)
CN (1) CN1151705C (enExample)
AT (1) ATE215295T1 (enExample)
AU (1) AU746416B2 (enExample)
CA (1) CA2295505C (enExample)
DE (1) DE69804478T2 (enExample)
DK (1) DK1016320T3 (enExample)
ES (1) ES2171031T3 (enExample)
WO (1) WO1999004498A2 (enExample)

Families Citing this family (121)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6466912B1 (en) * 1997-09-25 2002-10-15 At&T Corp. Perceptual coding of audio signals employing envelope uncertainty
KR20010013152A (ko) * 1998-03-31 2001-02-26 요트.게.아. 롤페즈 코드화된 데이터를 수정하는 방법 및 데이터 수정 어셈블리
US6757326B1 (en) * 1998-12-28 2004-06-29 Motorola, Inc. Method and apparatus for implementing wavelet filters in a digital system
US6246345B1 (en) * 1999-04-16 2001-06-12 Dolby Laboratories Licensing Corporation Using gain-adaptive quantization and non-uniform symbol lengths for improved audio coding
US8767969B1 (en) * 1999-09-27 2014-07-01 Creative Technology Ltd Process for removing voice from stereo recordings
US6405163B1 (en) 1999-09-27 2002-06-11 Creative Technology Ltd. Process for removing voice from stereo recordings
SG98418A1 (en) * 2000-07-10 2003-09-19 Cyberinc Pte Ltd A method, a device and a system for compressing a musical and voice signal
US6377637B1 (en) * 2000-07-12 2002-04-23 Andrea Electronics Corporation Sub-band exponential smoothing noise canceling system
GB0102230D0 (en) * 2001-01-29 2001-03-14 Hewlett Packard Co Sound related systems and methods
US7308325B2 (en) 2001-01-29 2007-12-11 Hewlett-Packard Development Company, L.P. Audio system
US7660424B2 (en) * 2001-02-07 2010-02-09 Dolby Laboratories Licensing Corporation Audio channel spatial translation
US20030035553A1 (en) * 2001-08-10 2003-02-20 Frank Baumgarte Backwards-compatible perceptual coding of spatial cues
US7292901B2 (en) * 2002-06-24 2007-11-06 Agere Systems Inc. Hybrid multi-channel/cue coding/decoding of audio signals
US7006636B2 (en) * 2002-05-24 2006-02-28 Agere Systems Inc. Coherence-based audio coding and synthesis
US7116787B2 (en) * 2001-05-04 2006-10-03 Agere Systems Inc. Perceptual synthesis of auditory scenes
US7583805B2 (en) * 2004-02-12 2009-09-01 Agere Systems Inc. Late reverberation-based synthesis of auditory scenes
US7644003B2 (en) * 2001-05-04 2010-01-05 Agere Systems Inc. Cue-based audio coding/decoding
SE0202159D0 (sv) * 2001-07-10 2002-07-09 Coding Technologies Sweden Ab Efficientand scalable parametric stereo coding for low bitrate applications
US8605911B2 (en) * 2001-07-10 2013-12-10 Dolby International Ab Efficient and scalable parametric stereo coding for low bitrate audio coding applications
US7333929B1 (en) 2001-09-13 2008-02-19 Chmounk Dmitri V Modular scalable compressed audio data stream
US7469206B2 (en) 2001-11-29 2008-12-23 Coding Technologies Ab Methods for improving high frequency reconstruction
US6934677B2 (en) 2001-12-14 2005-08-23 Microsoft Corporation Quantization matrices based on critical band pattern information for digital audio wherein quantization bands differ from critical bands
US7240001B2 (en) * 2001-12-14 2007-07-03 Microsoft Corporation Quality improvement techniques in an audio encoder
DE10163569A1 (de) * 2001-12-21 2003-11-06 Endress & Hauser Gmbh & Co Kg Verfahren zur Bestimmung und/oder Überwachung einer physikalischen oder chemischen Prozeßgröße
DE60323331D1 (de) * 2002-01-30 2008-10-16 Matsushita Electric Industrial Co Ltd Verfahren und vorrichtung zur audio-kodierung und -dekodierung
KR20030068308A (ko) * 2002-02-15 2003-08-21 주식회사 엘지이아이 음성 코덱을 이용한 그래픽 표시장치 및 방법
US7328151B2 (en) 2002-03-22 2008-02-05 Sound Id Audio decoder with dynamic adjustment of signal modification
DE60306512T2 (de) * 2002-04-22 2007-06-21 Koninklijke Philips Electronics N.V. Parametrische beschreibung von mehrkanal-audio
KR100978018B1 (ko) * 2002-04-22 2010-08-25 코닌클리케 필립스 일렉트로닉스 엔.브이. 공간 오디오의 파라메터적 표현
US7257231B1 (en) 2002-06-04 2007-08-14 Creative Technology Ltd. Stream segregation for stereo signals
EP1523863A1 (en) 2002-07-16 2005-04-20 Koninklijke Philips Electronics N.V. Audio coding
US7502743B2 (en) 2002-09-04 2009-03-10 Microsoft Corporation Multi-channel audio encoding and decoding with multi-channel transform selection
SE0202770D0 (sv) 2002-09-18 2002-09-18 Coding Technologies Sweden Ab Method for reduction of aliasing introduces by spectral envelope adjustment in real-valued filterbanks
US7787632B2 (en) * 2003-03-04 2010-08-31 Nokia Corporation Support of a multichannel audio extension
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
US7519538B2 (en) 2003-10-30 2009-04-14 Koninklijke Philips Electronics N.V. Audio signal encoding or decoding
US7539614B2 (en) * 2003-11-14 2009-05-26 Nxp B.V. System and method for audio signal processing using different gain factors for voiced and unvoiced phonemes
US7970144B1 (en) 2003-12-17 2011-06-28 Creative Technology Ltd Extracting and modifying a panned source for enhancement and upmix of audio signals
US7460990B2 (en) * 2004-01-23 2008-12-02 Microsoft Corporation Efficient coding of digital media spectral data using wide-sense perceptual similarity
KR20070001115A (ko) * 2004-01-28 2007-01-03 코닌클리케 필립스 일렉트로닉스 엔.브이. 복소수 값 데이터를 이용하는 오디오 신호 디코딩
AU2005219956B2 (en) * 2004-03-01 2009-05-28 Dolby Laboratories Licensing Corporation Multichannel audio coding
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
US7805313B2 (en) * 2004-03-04 2010-09-28 Agere Systems Inc. Frequency-based coding of channels in parametric multi-channel coding systems
CN102122509B (zh) * 2004-04-05 2016-03-23 皇家飞利浦电子股份有限公司 多信道解码器和多信道解码方法
EP1895512A3 (en) * 2004-04-05 2014-09-17 Koninklijke Philips N.V. Multi-channel encoder
SE0400997D0 (sv) * 2004-04-16 2004-04-16 Cooding Technologies Sweden Ab Efficient coding of multi-channel audio
SE0400998D0 (sv) 2004-04-16 2004-04-16 Cooding Technologies Sweden Ab Method for representing multi-channel audio signals
US7490044B2 (en) * 2004-06-08 2009-02-10 Bose Corporation Audio signal processing
US7391870B2 (en) * 2004-07-09 2008-06-24 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E V Apparatus and method for generating a multi-channel output signal
US7536302B2 (en) * 2004-07-13 2009-05-19 Industrial Technology Research Institute Method, process and device for coding audio signals
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
US7720230B2 (en) * 2004-10-20 2010-05-18 Agere Systems, Inc. Individual channel shaping for BCC schemes and the like
US8204261B2 (en) * 2004-10-20 2012-06-19 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Diffuse sound shaping for BCC schemes and the like
CN101065797B (zh) * 2004-10-28 2011-07-27 Dts（英属维尔京群岛）有限公司 动态下混频的系统
SE0402652D0 (sv) * 2004-11-02 2004-11-02 Coding Tech Ab Methods for improved performance of prediction based multi- channel reconstruction
US8340306B2 (en) * 2004-11-30 2012-12-25 Agere Systems Llc Parametric coding of spatial audio with object-based side information
JP5017121B2 (ja) * 2004-11-30 2012-09-05 アギア システムズ インコーポレーテッド 外部的に供給されるダウンミックスとの空間オーディオのパラメトリック・コーディングの同期化
US7787631B2 (en) * 2004-11-30 2010-08-31 Agere Systems Inc. Parametric coding of spatial audio with cues based on transmitted channels
US7903824B2 (en) * 2005-01-10 2011-03-08 Agere Systems Inc. Compact side information for parametric coding of spatial audio
EP1851866B1 (en) * 2005-02-23 2011-08-17 Telefonaktiebolaget LM Ericsson (publ) Adaptive bit allocation for multi-channel audio encoding
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
ATE421845T1 (de) * 2005-04-15 2009-02-15 Dolby Sweden Ab Zeitliche hüllkurvenformgebung von entkorrelierten signalen
US7983922B2 (en) * 2005-04-15 2011-07-19 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating multi-channel synthesizer control signal and apparatus and method for multi-channel synthesizing
JP4988716B2 (ja) 2005-05-26 2012-08-01 エルジー エレクトロニクス インコーポレイティド オーディオ信号のデコーディング方法及び装置
EP1905002B1 (en) * 2005-05-26 2013-05-22 LG Electronics Inc. Method and apparatus for decoding audio signal
WO2006126858A2 (en) * 2005-05-26 2006-11-30 Lg Electronics Inc. Method of encoding and decoding an audio signal
US7548853B2 (en) * 2005-06-17 2009-06-16 Shmunk Dmitry V Scalable compressed audio bit stream and codec using a hierarchical filterbank and multichannel joint coding
EP1913577B1 (en) * 2005-06-30 2021-05-05 Lg Electronics Inc. Apparatus for encoding an audio signal and method thereof
US8214221B2 (en) * 2005-06-30 2012-07-03 Lg Electronics Inc. Method and apparatus for decoding an audio signal and identifying information included in the audio signal
US8082157B2 (en) * 2005-06-30 2011-12-20 Lg Electronics Inc. Apparatus for encoding and decoding audio signal and method thereof
DE102005032724B4 (de) * 2005-07-13 2009-10-08 Siemens Ag Verfahren und Vorrichtung zur künstlichen Erweiterung der Bandbreite von Sprachsignalen
WO2007010785A1 (ja) * 2005-07-15 2007-01-25 Matsushita Electric Industrial Co., Ltd. オーディオデコーダ
TWI396188B (zh) * 2005-08-02 2013-05-11 Dolby Lab Licensing Corp 依聆聽事件之函數控制空間音訊編碼參數的技術
US7788107B2 (en) * 2005-08-30 2010-08-31 Lg Electronics Inc. Method for decoding an audio signal
US7831435B2 (en) * 2005-08-30 2010-11-09 Lg Electronics Inc. Slot position coding of OTT syntax of spatial audio coding application
US8577483B2 (en) * 2005-08-30 2013-11-05 Lg Electronics, Inc. Method for decoding an audio signal
MX2008002760A (es) * 2005-08-30 2008-04-07 Lg Electronics Inc Metodo para decodificar una senal de audio.
US7646319B2 (en) * 2005-10-05 2010-01-12 Lg Electronics Inc. Method and apparatus for signal processing and encoding and decoding method, and apparatus therefor
WO2007040349A1 (en) * 2005-10-05 2007-04-12 Lg Electronics Inc. Method and apparatus for signal processing
KR100857112B1 (ko) * 2005-10-05 2008-09-05 엘지전자 주식회사 신호 처리 방법 및 이의 장치, 그리고 인코딩 및 디코딩방법 및 이의 장치
US7672379B2 (en) * 2005-10-05 2010-03-02 Lg Electronics Inc. Audio signal processing, encoding, and decoding
US7751485B2 (en) 2005-10-05 2010-07-06 Lg Electronics Inc. Signal processing using pilot based coding
US7696907B2 (en) * 2005-10-05 2010-04-13 Lg Electronics Inc. Method and apparatus for signal processing and encoding and decoding method, and apparatus therefor
US7716043B2 (en) 2005-10-24 2010-05-11 Lg Electronics Inc. Removing time delays in signal paths
US7676360B2 (en) * 2005-12-01 2010-03-09 Sasken Communication Technologies Ltd. Method for scale-factor estimation in an audio encoder
US7752053B2 (en) * 2006-01-13 2010-07-06 Lg Electronics Inc. Audio signal processing using pilot based coding
KR20070077134A (ko) * 2006-01-19 2007-07-25 엘지전자 주식회사 미디어 신호의 처리 방법 및 장치
US7831434B2 (en) * 2006-01-20 2010-11-09 Microsoft Corporation Complex-transform channel coding with extended-band frequency coding
US8190425B2 (en) * 2006-01-20 2012-05-29 Microsoft Corporation Complex cross-correlation parameters for multi-channel audio
US8296156B2 (en) * 2006-02-07 2012-10-23 Lg Electronics, Inc. Apparatus and method for encoding/decoding signal
WO2007116809A1 (ja) * 2006-03-31 2007-10-18 Matsushita Electric Industrial Co., Ltd. ステレオ音声符号化装置、ステレオ音声復号装置、およびこれらの方法
US8379868B2 (en) * 2006-05-17 2013-02-19 Creative Technology Ltd Spatial audio coding based on universal spatial cues
US8374365B2 (en) * 2006-05-17 2013-02-12 Creative Technology Ltd Spatial audio analysis and synthesis for binaural reproduction and format conversion
US9697844B2 (en) * 2006-05-17 2017-07-04 Creative Technology Ltd Distributed spatial audio decoder
US8712061B2 (en) * 2006-05-17 2014-04-29 Creative Technology Ltd Phase-amplitude 3-D stereo encoder and decoder
WO2008032209A2 (en) * 2006-09-14 2008-03-20 Lg Electronics Inc. Controller and user interface for dialogue enhancement techniques
RU2408164C1 (ru) * 2006-09-14 2010-12-27 ЭлДжи ЭЛЕКТРОНИКС ИНК. Методы улучшения диалогов
US8103006B2 (en) * 2006-09-25 2012-01-24 Dolby Laboratories Licensing Corporation Spatial resolution of the sound field for multi-channel audio playback systems by deriving signals with high order angular terms
US9015051B2 (en) 2007-03-21 2015-04-21 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Reconstruction of audio channels with direction parameters indicating direction of origin
US20080232601A1 (en) * 2007-03-21 2008-09-25 Ville Pulkki Method and apparatus for enhancement of audio reconstruction
US8908873B2 (en) 2007-03-21 2014-12-09 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Method and apparatus for conversion between multi-channel audio formats
US8290167B2 (en) 2007-03-21 2012-10-16 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Method and apparatus for conversion between multi-channel audio formats
US7885819B2 (en) 2007-06-29 2011-02-08 Microsoft Corporation Bitstream syntax for multi-process audio decoding
WO2009067741A1 (en) * 2007-11-27 2009-06-04 Acouity Pty Ltd Bandwidth compression of parametric soundfield representations for transmission and storage
CN101527327B (zh) * 2008-03-07 2012-09-19 清华大学 太阳能电池
JP4661901B2 (ja) * 2008-04-18 2011-03-30 ソニー株式会社 信号処理装置および方法、プログラム、並びに信号処理システム
BR122019023877B1 (pt) 2009-03-17 2021-08-17 Dolby International Ab Sistema codificador, sistema decodificador, método para codificar um sinal estéreo para um sinal de fluxo de bits e método para decodificar um sinal de fluxo de bits para um sinal estéreo
TWI591625B (zh) 2009-05-27 2017-07-11 杜比國際公司 從訊號的低頻成份產生該訊號之高頻成份的系統與方法，及其機上盒、電腦程式產品、軟體程式及儲存媒體
US11657788B2 (en) 2009-05-27 2023-05-23 Dolby International Ab Efficient combined harmonic transposition
CN102754159B (zh) 2009-10-19 2016-08-24 杜比国际公司 指示音频对象的部分的元数据时间标记信息
US8759661B2 (en) 2010-08-31 2014-06-24 Sonivox, L.P. System and method for audio synthesizer utilizing frequency aperture arrays
WO2012093290A1 (en) * 2011-01-05 2012-07-12 Nokia Corporation Multi-channel encoding and/or decoding
US8653354B1 (en) * 2011-08-02 2014-02-18 Sonivoz, L.P. Audio synthesizing systems and methods
WO2013186593A1 (en) * 2012-06-14 2013-12-19 Nokia Corporation Audio capture apparatus
WO2014159898A1 (en) * 2013-03-29 2014-10-02 Dolby Laboratories Licensing Corporation Methods and apparatuses for generating and using low-resolution preview tracks with high-quality encoded object and multichannel audio signals
CN104681032B (zh) * 2013-11-28 2018-05-11 中国移动通信集团公司 一种语音通信方法和设备
EP3332557B1 (en) 2015-08-07 2019-06-19 Dolby Laboratories Licensing Corporation Processing object-based audio signals
NO343581B1 (no) * 2017-03-01 2019-04-08 Dolby Int Ab Fremgangsmåte, anordning og program til spektralinnhyllingsjustering
US10984808B2 (en) * 2019-07-09 2021-04-20 Blackberry Limited Method for multi-stage compression in sub-band processing
CN115472170A (zh) * 2021-06-11 2022-12-13 华为技术有限公司 一种三维音频信号的处理方法和装置
CN113873420B (zh) * 2021-09-28 2023-06-23 联想(北京)有限公司 音频数据处理方法及装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9000338A (nl) * 1989-06-02 1991-01-02 Koninkl Philips Electronics Nv Digitaal transmissiesysteem, zender en ontvanger te gebruiken in het transmissiesysteem en registratiedrager verkregen met de zender in de vorm van een optekeninrichting.
US5539829A (en) * 1989-06-02 1996-07-23 U.S. Philips Corporation Subband coded digital transmission system using some composite signals
KR100228688B1 (ko) * 1991-01-08 1999-11-01 쥬더 에드 에이. 다차원 음장용 인코우더/디코우더
US5632005A (en) * 1991-01-08 1997-05-20 Ray Milton Dolby Encoder/decoder for multidimensional sound fields
US5274740A (en) * 1991-01-08 1993-12-28 Dolby Laboratories Licensing Corporation Decoder for variable number of channel presentation of multidimensional sound fields
US5581653A (en) * 1993-08-31 1996-12-03 Dolby Laboratories Licensing Corporation Low bit-rate high-resolution spectral envelope coding for audio encoder and decoder
ATE191107T1 (de) * 1994-12-20 2000-04-15 Dolby Lab Licensing Corp Verfahren und gerät zum anwenden von wellenformprädiktion auf teilbänder in einem perzeptiven kodiersystem

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EP1016320A2 (en) 2000-07-05
CN1151705C (zh) 2004-05-26
KR100550399B1 (ko) 2006-02-08
DE69804478D1 (de) 2002-05-02
DK1016320T3 (da) 2002-07-08
ES2171031T3 (es) 2002-08-16
JP4223679B2 (ja) 2009-02-12
AU746416B2 (en) 2002-05-02
AU8138098A (en) 1999-02-10
EP1016320B1 (en) 2002-03-27
JP2001510953A (ja) 2001-08-07
WO1999004498A2 (en) 1999-01-28
DE69804478T2 (de) 2002-10-02
WO1999004498A3 (en) 1999-09-16
US5890125A (en) 1999-03-30
CA2295505A1 (en) 1999-01-28
KR20010020540A (ko) 2001-03-15
CA2295505C (en) 2008-09-02
CN1264533A (zh) 2000-08-23

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