JP6013646B2 - オーディオ処理システム - Google Patents

オーディオ処理システム Download PDF

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JP6013646B2
JP6013646B2 JP2016505845A JP2016505845A JP6013646B2 JP 6013646 B2 JP6013646 B2 JP 6013646B2 JP 2016505845 A JP2016505845 A JP 2016505845A JP 2016505845 A JP2016505845 A JP 2016505845A JP 6013646 B2 JP6013646 B2 JP 6013646B2
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audio
frequency
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JP2016514858A (ja
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クヨーリング,クリストファー
プルンハーゲン,ヘイコ
ヴィレモーズ,ラーシュ
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ドルビー・インターナショナル・アーベー
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    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/008Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/02Speech 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
    • G10L19/032Quantisation or dequantisation of spectral components
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/04Speech 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 predictive techniques
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/04Speech 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 predictive techniques
    • G10L19/16Vocoder architecture
    • G10L19/18Vocoders using multiple modes
    • G10L19/20Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04SSTEREOPHONIC SYSTEMS 
    • H04S3/00Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008Systems 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Circuit For Audible Band Transducer (AREA)
JP2016505845A 2013-04-05 2014-04-04 オーディオ処理システム Active JP6013646B2 (ja)

Applications Claiming Priority (5)

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US201361809019P 2013-04-05 2013-04-05
US61/809,019 2013-04-05
US201361875959P 2013-09-10 2013-09-10
US61/875,959 2013-09-10
PCT/EP2014/056857 WO2014161996A2 (en) 2013-04-05 2014-04-04 Audio processing system

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JP2016184272A Division JP6407928B2 (ja) 2013-04-05 2016-09-21 オーディオ処理システム

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JP2016514858A JP2016514858A (ja) 2016-05-23
JP6013646B2 true JP6013646B2 (ja) 2016-10-25

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EP (1) EP2981956B1 (https=)
JP (2) JP6013646B2 (https=)
KR (1) KR101717006B1 (https=)
CN (2) CN105247613B (https=)
BR (1) BR112015025092B1 (https=)
ES (1) ES2934646T3 (https=)
IN (1) IN2015MN02784A (https=)
RU (1) RU2625444C2 (https=)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017017749A (ja) * 2013-04-05 2017-01-19 ドルビー・インターナショナル・アーベー オーディオ処理システム

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI557727B (zh) 2013-04-05 2016-11-11 杜比國際公司 音訊處理系統、多媒體處理系統、處理音訊位元流的方法以及電腦程式產品
ES2726193T3 (es) * 2014-08-28 2019-10-02 Nokia Technologies Oy Cuantificación de parámetros de audio
WO2016142002A1 (en) 2015-03-09 2016-09-15 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, audio decoder, method for encoding an audio signal and method for decoding an encoded audio signal
RU2716911C2 (ru) * 2015-04-10 2020-03-17 Интердиджитал Се Пэйтент Холдингз Способ и устройство для кодирования множественных аудиосигналов и способ и устройство для декодирования смеси множественных аудиосигналов с улучшенным разделением
EP3107096A1 (en) * 2015-06-16 2016-12-21 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Downscaled decoding
WO2017080835A1 (en) * 2015-11-10 2017-05-18 Dolby International Ab Signal-dependent companding system and method to reduce quantization noise
CN108496221B (zh) 2016-01-26 2020-01-21 杜比实验室特许公司 自适应量化
KR102546098B1 (ko) * 2016-03-21 2023-06-22 한국전자통신연구원 블록 기반의 오디오 부호화/복호화 장치 및 그 방법
CN105847963A (zh) * 2016-03-31 2016-08-10 乐视控股(北京)有限公司 一种应用于电视的音频调试方法及装置
JP6976277B2 (ja) * 2016-06-22 2021-12-08 ドルビー・インターナショナル・アーベー 第一の周波数領域から第二の周波数領域にデジタル・オーディオ信号を変換するためのオーディオ・デコーダおよび方法
US10249307B2 (en) * 2016-06-27 2019-04-02 Qualcomm Incorporated Audio decoding using intermediate sampling rate
US10224042B2 (en) * 2016-10-31 2019-03-05 Qualcomm Incorporated Encoding of multiple audio signals
PL3748633T3 (pl) 2016-11-08 2025-11-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Moduł downmixu i sposób downmixu co najmniej dwóch kanałów oraz koder wielokanałowy i dekoder wielokanałowy
GB2559200A (en) * 2017-01-31 2018-08-01 Nokia Technologies Oy Stereo audio signal encoder
US10475457B2 (en) 2017-07-03 2019-11-12 Qualcomm Incorporated Time-domain inter-channel prediction
US10950251B2 (en) * 2018-03-05 2021-03-16 Dts, Inc. Coding of harmonic signals in transform-based audio codecs
IL313348B2 (en) * 2018-04-25 2025-08-01 Dolby Int Ab Integration of high frequency reconstruction techniques with reduced post-processing delay
US10863300B2 (en) 2018-06-18 2020-12-08 Magic Leap, Inc. Spatial audio for interactive audio environments
US11545165B2 (en) * 2018-07-03 2023-01-03 Panasonic Intellectual Property Corporation Of America Encoding device and encoding method using a determined prediction parameter based on an energy difference between channels
CN112384976B (zh) * 2018-07-12 2024-10-11 杜比国际公司 动态eq
EP3935581A4 (en) 2019-03-04 2022-11-30 Iocurrents, Inc. DATA COMPRESSION AND COMMUNICATION USING MACHINE LEARNING
WO2020216459A1 (en) 2019-04-23 2020-10-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method or computer program for generating an output downmix representation
CN110335615B (zh) * 2019-05-05 2021-11-16 北京字节跳动网络技术有限公司 音频数据的处理方法、装置、电子设备及存储介质
WO2021004049A1 (zh) * 2019-07-09 2021-01-14 海信视像科技股份有限公司 显示装置、音频数据传输方法及装置
CN114424282B (zh) * 2019-09-03 2026-03-24 杜比实验室特许公司 低时延低频率效应编译码器
RU2731602C1 (ru) * 2019-09-30 2020-09-04 Ордена трудового Красного Знамени федеральное государственное бюджетное образовательное учреждение высшего образования "Московский технический университет связи и информатики" (МТУСИ) Способ и устройство компандирования с предыскажением звуковых вещательных сигналов
CN113140225B (zh) * 2020-01-20 2024-07-02 腾讯科技(深圳)有限公司 语音信号处理方法、装置、电子设备及存储介质
CN111354365B (zh) * 2020-03-10 2023-10-31 苏宁云计算有限公司 一种纯语音数据采样率识别方法、装置、系统
JP7567180B2 (ja) * 2020-03-13 2024-10-16 ヤマハ株式会社 音響処理装置および音響処理方法
WO2022097239A1 (ja) * 2020-11-05 2022-05-12 日本電信電話株式会社 音信号精製方法、音信号復号方法、これらの装置、プログラム及び記録媒体
EP4738346A1 (en) 2020-12-02 2026-05-06 Dolby International AB Immersive voice and audio services (ivas) with adaptive downmix strategies
EP4243014A4 (en) 2021-01-25 2024-07-17 Samsung Electronics Co., Ltd. DEVICE AND METHOD FOR PROCESSING A MULTI-CHANNEL AUDIO SIGNAL
CN118038879A (zh) * 2022-11-07 2024-05-14 抖音视界有限公司 一种音频数据的编码方法、解码方法及装置
GB2624686B (en) * 2022-11-25 2025-07-23 Lenbrook Industries Ltd Improvements to audio coding
US20250078845A1 (en) * 2023-08-29 2025-03-06 Samsung Electronics Co., Ltd. Lossless audio coding for multichannel hierarchical reconstruction

Family Cites Families (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3582589B2 (ja) * 2001-03-07 2004-10-27 日本電気株式会社 音声符号化装置及び音声復号化装置
US7644003B2 (en) * 2001-05-04 2010-01-05 Agere Systems Inc. Cue-based audio coding/decoding
US7292901B2 (en) 2002-06-24 2007-11-06 Agere Systems Inc. Hybrid multi-channel/cue coding/decoding of audio signals
JP4108317B2 (ja) * 2001-11-13 2008-06-25 日本電気株式会社 符号変換方法及び装置とプログラム並びに記憶媒体
US7657427B2 (en) 2002-10-11 2010-02-02 Nokia Corporation Methods and devices for source controlled variable bit-rate wideband speech coding
EP1618763B1 (en) * 2003-04-17 2007-02-28 Koninklijke Philips Electronics N.V. Audio signal synthesis
US7412380B1 (en) * 2003-12-17 2008-08-12 Creative Technology Ltd. Ambience extraction and modification for enhancement and upmix of audio signals
US7394903B2 (en) * 2004-01-20 2008-07-01 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Apparatus and method for constructing a multi-channel output signal or for generating a downmix signal
GB0402661D0 (en) * 2004-02-06 2004-03-10 Medical Res Council TPL2 and its expression
CA2457988A1 (en) * 2004-02-18 2005-08-18 Voiceage Corporation Methods and devices for audio compression based on acelp/tcx coding and multi-rate lattice vector quantization
CN1677493A (zh) * 2004-04-01 2005-10-05 北京宫羽数字技术有限责任公司 一种增强音频编解码装置及方法
SE0400998D0 (sv) * 2004-04-16 2004-04-16 Cooding Technologies Sweden Ab Method for representing multi-channel audio signals
TWI393120B (zh) * 2004-08-25 2013-04-11 Dolby Lab Licensing Corp 用於音訊信號編碼及解碼之方法和系統、音訊信號編碼器、音訊信號解碼器、攜帶有位元流之電腦可讀取媒體、及儲存於電腦可讀取媒體上的電腦程式
DE102004043521A1 (de) * 2004-09-08 2006-03-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Erzeugen eines Multikanalsignals oder eines Parameterdatensatzes
SE0402649D0 (sv) * 2004-11-02 2004-11-02 Coding Tech Ab Advanced methods of creating orthogonal signals
JP5106115B2 (ja) * 2004-11-30 2012-12-26 アギア システムズ インコーポレーテッド オブジェクト・ベースのサイド情報を用いる空間オーディオのパラメトリック・コーディング
US7903824B2 (en) * 2005-01-10 2011-03-08 Agere Systems Inc. Compact side information for parametric coding of spatial audio
PL1866912T3 (pl) * 2005-03-30 2011-03-31 Koninl Philips Electronics Nv Kodowanie wielokanałowego sygnału audio
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
KR101340233B1 (ko) * 2005-08-31 2013-12-10 파나소닉 주식회사 스테레오 부호화 장치, 스테레오 복호 장치 및 스테레오부호화 방법
US20080004883A1 (en) 2006-06-30 2008-01-03 Nokia Corporation Scalable audio coding
WO2008021247A2 (en) * 2006-08-15 2008-02-21 Dolby Laboratories Licensing Corporation Arbitrary shaping of temporal noise envelope without side-information
KR101012259B1 (ko) 2006-10-16 2011-02-08 돌비 스웨덴 에이비 멀티채널 다운믹스된 객체 코딩의 개선된 코딩 및 파라미터 표현
JP4930320B2 (ja) * 2006-11-30 2012-05-16 ソニー株式会社 再生方法及び装置、プログラム並びに記録媒体
US8363842B2 (en) 2006-11-30 2013-01-29 Sony Corporation Playback method and apparatus, program, and recording medium
US8200351B2 (en) 2007-01-05 2012-06-12 STMicroelectronics Asia PTE., Ltd. Low power downmix energy equalization in parametric stereo encoders
JP5554065B2 (ja) * 2007-02-06 2014-07-23 コーニンクレッカ フィリップス エヌ ヴェ 複雑さの軽減されたパラメトリックステレオデコーダ
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
GB2467247B (en) * 2007-10-04 2012-02-29 Creative Tech Ltd Phase-amplitude 3-D stereo encoder and decoder
ATE518224T1 (de) 2008-01-04 2011-08-15 Dolby Int Ab Audiokodierer und -dekodierer
US8546172B2 (en) * 2008-01-18 2013-10-01 Miasole Laser polishing of a back contact of a solar cell
EP2144230A1 (en) 2008-07-11 2010-01-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Low bitrate audio encoding/decoding scheme having cascaded switches
RU2494477C2 (ru) 2008-07-11 2013-09-27 Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. Устройство и способ генерирования выходных данных расширения полосы пропускания
KR101381513B1 (ko) * 2008-07-14 2014-04-07 광운대학교 산학협력단 음성/음악 통합 신호의 부호화/복호화 장치
KR101261677B1 (ko) * 2008-07-14 2013-05-06 광운대학교 산학협력단 음성/음악 통합 신호의 부호화/복호화 장치
ES2592416T3 (es) * 2008-07-17 2016-11-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Esquema de codificación/decodificación de audio que tiene una derivación conmutable
WO2010009098A1 (en) * 2008-07-18 2010-01-21 Dolby Laboratories Licensing Corporation Method and system for frequency domain postfiltering of encoded audio data in a decoder
EP2345027B1 (en) 2008-10-10 2018-04-18 Telefonaktiebolaget LM Ericsson (publ) Energy-conserving multi-channel audio coding and decoding
US8965000B2 (en) * 2008-12-19 2015-02-24 Dolby International Ab Method and apparatus for applying reverb to a multi-channel audio signal using spatial cue parameters
WO2010075895A1 (en) 2008-12-30 2010-07-08 Nokia Corporation Parametric audio coding
EP2214161A1 (en) * 2009-01-28 2010-08-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method and computer program for upmixing a downmix audio signal
CN105225667B (zh) 2009-03-17 2019-04-05 杜比国际公司 编码器系统、解码器系统、编码方法和解码方法
FR2947945A1 (fr) 2009-07-07 2011-01-14 France Telecom Allocation de bits dans un codage/decodage d'amelioration d'un codage/decodage hierarchique de signaux audionumeriques
KR20110022252A (ko) 2009-08-27 2011-03-07 삼성전자주식회사 스테레오 오디오의 부호화, 복호화 방법 및 장치
KR20110049068A (ko) * 2009-11-04 2011-05-12 삼성전자주식회사 멀티 채널 오디오 신호의 부호화/복호화 장치 및 방법
US9117458B2 (en) * 2009-11-12 2015-08-25 Lg Electronics Inc. Apparatus for processing an audio signal and method thereof
US8442837B2 (en) 2009-12-31 2013-05-14 Motorola Mobility Llc Embedded speech and audio coding using a switchable model core
TWI557723B (zh) * 2010-02-18 2016-11-11 杜比實驗室特許公司 解碼方法及系統
US8423355B2 (en) 2010-03-05 2013-04-16 Motorola Mobility Llc Encoder for audio signal including generic audio and speech frames
EP2375409A1 (en) 2010-04-09 2011-10-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder, audio decoder and related methods for processing multi-channel audio signals using complex prediction
US8489391B2 (en) 2010-08-05 2013-07-16 Stmicroelectronics Asia Pacific Pte., Ltd. Scalable hybrid auto coder for transient detection in advanced audio coding with spectral band replication
EP2612321B1 (en) 2010-09-28 2016-01-06 Huawei Technologies Co., Ltd. Device and method for postprocessing decoded multi-channel audio signal or decoded stereo signal
CN102844808B (zh) 2010-11-03 2016-01-13 华为技术有限公司 用于编码多通道音频信号的参数编码器
TWI564882B (zh) 2011-02-14 2017-01-01 弗勞恩霍夫爾協會 利用重疊變換之資訊信號表示技術(一)
EP2523473A1 (en) * 2011-05-11 2012-11-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for generating an output signal employing a decomposer
USRE48258E1 (en) * 2011-11-11 2020-10-13 Dolby International Ab Upsampling using oversampled SBR
US9478224B2 (en) * 2013-04-05 2016-10-25 Dolby International Ab Audio processing system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017017749A (ja) * 2013-04-05 2017-01-19 ドルビー・インターナショナル・アーベー オーディオ処理システム

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US20160372123A1 (en) 2016-12-22
BR112015025092B1 (pt) 2022-01-11
CN105247613B (zh) 2019-01-18
WO2014161996A2 (en) 2014-10-09
IN2015MN02784A (https=) 2015-10-23
RU2015147158A (ru) 2017-05-17
HK1214026A1 (zh) 2016-07-15
US9478224B2 (en) 2016-10-25
RU2625444C2 (ru) 2017-07-13
ES2934646T3 (es) 2023-02-23
EP2981956A2 (en) 2016-02-10
EP2981956B1 (en) 2022-11-30
JP6407928B2 (ja) 2018-10-17
BR112015025092A2 (pt) 2017-07-18
CN109509478A (zh) 2019-03-22
WO2014161996A3 (en) 2014-12-04
US9812136B2 (en) 2017-11-07
CN105247613A (zh) 2016-01-13
CN109509478B (zh) 2023-09-05
KR101717006B1 (ko) 2017-03-15
JP2016514858A (ja) 2016-05-23
JP2017017749A (ja) 2017-01-19
KR20150139601A (ko) 2015-12-11
US20160055855A1 (en) 2016-02-25

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