PL1683133T3 - Kodowanie lub dekodowanie sygnału audio - Google Patents

Kodowanie lub dekodowanie sygnału audio

Info

Publication number
PL1683133T3
PL1683133T3 PL04770333T PL04770333T PL1683133T3 PL 1683133 T3 PL1683133 T3 PL 1683133T3 PL 04770333 T PL04770333 T PL 04770333T PL 04770333 T PL04770333 T PL 04770333T PL 1683133 T3 PL1683133 T3 PL 1683133T3
Authority
PL
Poland
Prior art keywords
subband signals
downsampled
subband
audio signal
audio
Prior art date
Application number
PL04770333T
Other languages
English (en)
Inventor
Lars F Villemoes
Per Ekstrand
Heiko Purnhagen
Erik G P Schuijers
Bont Fransiscus M J De
Original Assignee
Koninl Philips Electronics Nv
Dolby Int Ag
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34530779&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=PL1683133(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Koninl Philips Electronics Nv, Dolby Int Ag filed Critical Koninl Philips Electronics Nv
Publication of PL1683133T3 publication Critical patent/PL1683133T3/pl

Links

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
    • 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
    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0248—Filters characterised by a particular frequency response or filtering method
    • H03H17/0264—Filter sets with mutual related characteristics
    • H03H17/0266—Filter banks

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Physics (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Stereophonic System (AREA)
  • Insulated Conductors (AREA)
PL04770333T 2003-10-30 2004-10-28 Kodowanie lub dekodowanie sygnału audio PL1683133T3 (pl)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP03104034 2003-10-30
EP04770333A EP1683133B1 (en) 2003-10-30 2004-10-28 Audio signal encoding or decoding
PCT/IB2004/052226 WO2005043511A1 (en) 2003-10-30 2004-10-28 Audio signal encoding or decoding

Publications (1)

Publication Number Publication Date
PL1683133T3 true PL1683133T3 (pl) 2007-07-31

Family

ID=34530779

Family Applications (1)

Application Number Title Priority Date Filing Date
PL04770333T PL1683133T3 (pl) 2003-10-30 2004-10-28 Kodowanie lub dekodowanie sygnału audio

Country Status (12)

Country Link
US (3) US7519538B2 (pl)
EP (1) EP1683133B1 (pl)
JP (4) JP4966013B2 (pl)
KR (2) KR101217649B1 (pl)
CN (2) CN101540171B (pl)
AT (1) ATE354160T1 (pl)
BR (2) BR122018007834B1 (pl)
DE (1) DE602004004818T2 (pl)
ES (1) ES2282899T3 (pl)
PL (1) PL1683133T3 (pl)
RU (1) RU2374703C2 (pl)
WO (1) WO2005043511A1 (pl)

Families Citing this family (109)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7240001B2 (en) * 2001-12-14 2007-07-03 Microsoft Corporation Quality improvement techniques in an audio encoder
US7502743B2 (en) * 2002-09-04 2009-03-10 Microsoft Corporation Multi-channel audio encoding and decoding with multi-channel transform selection
US7460990B2 (en) * 2004-01-23 2008-12-02 Microsoft Corporation Efficient coding of digital media spectral data using wide-sense perceptual similarity
ATE527654T1 (de) 2004-03-01 2011-10-15 Dolby Lab Licensing Corp Mehrkanal-audiodecodierung
JP4892184B2 (ja) * 2004-10-14 2012-03-07 パナソニック株式会社 音響信号符号化装置及び音響信号復号装置
JP4939424B2 (ja) * 2004-11-02 2012-05-23 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 複素値のフィルタ・バンクを用いたオーディオ信号の符号化及び復号化
JPWO2006059567A1 (ja) * 2004-11-30 2008-06-05 松下電器産業株式会社 ステレオ符号化装置、ステレオ復号装置、およびこれらの方法
KR100657916B1 (ko) * 2004-12-01 2006-12-14 삼성전자주식회사 주파수 대역간의 유사도를 이용한 오디오 신호 처리 장치및 방법
WO2006126844A2 (en) * 2005-05-26 2006-11-30 Lg Electronics Inc. Method and apparatus for decoding an audio signal
EP1905004A2 (en) * 2005-05-26 2008-04-02 LG Electronics Inc. Method of encoding and decoding an audio signal
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
AU2006266655B2 (en) * 2005-06-30 2009-08-20 Lg Electronics Inc. Apparatus for encoding and decoding audio signal and method thereof
WO2007004831A1 (en) * 2005-06-30 2007-01-11 Lg Electronics Inc. Method and apparatus for encoding and decoding an audio signal
US8082157B2 (en) 2005-06-30 2011-12-20 Lg Electronics Inc. Apparatus for encoding and decoding audio signal and method thereof
CN101248483B (zh) 2005-07-19 2011-11-23 皇家飞利浦电子股份有限公司 多声道音频信号的生成
US7788107B2 (en) * 2005-08-30 2010-08-31 Lg Electronics Inc. Method for decoding an audio signal
US8577483B2 (en) * 2005-08-30 2013-11-05 Lg Electronics, Inc. Method for decoding an audio signal
JP5108767B2 (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
JP5173811B2 (ja) * 2005-08-30 2013-04-03 エルジー エレクトロニクス インコーポレイティド オーディオ信号デコーディング方法及びその装置
KR100857111B1 (ko) * 2005-10-05 2008-09-08 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
ES2478004T3 (es) * 2005-10-05 2014-07-18 Lg Electronics Inc. Método y aparato para decodificar una señal de audio
US7751485B2 (en) * 2005-10-05 2010-07-06 Lg Electronics Inc. Signal processing using pilot based coding
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
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
US7653533B2 (en) * 2005-10-24 2010-01-26 Lg Electronics Inc. Removing time delays in signal paths
US7752053B2 (en) * 2006-01-13 2010-07-06 Lg Electronics Inc. Audio signal processing using pilot based coding
TWI329462B (en) 2006-01-19 2010-08-21 Lg Electronics Inc Method and apparatus for processing a media signal
EP1974344A4 (en) 2006-01-19 2011-06-08 Lg Electronics Inc METHOD AND APPARATUS FOR DECODING A SIGNAL
US8190425B2 (en) * 2006-01-20 2012-05-29 Microsoft Corporation Complex cross-correlation parameters for multi-channel audio
US7831434B2 (en) * 2006-01-20 2010-11-09 Microsoft Corporation Complex-transform channel coding with extended-band frequency coding
US7953604B2 (en) * 2006-01-20 2011-05-31 Microsoft Corporation Shape and scale parameters for extended-band frequency coding
JP5054035B2 (ja) 2006-02-07 2012-10-24 エルジー エレクトロニクス インコーポレイティド 符号化／復号化装置及び方法
KR100754220B1 (ko) 2006-03-07 2007-09-03 삼성전자주식회사 Ｍｐｅｇ 서라운드를 위한 바이노럴 디코더 및 그 디코딩방법
US7676374B2 (en) * 2006-03-28 2010-03-09 Nokia Corporation Low complexity subband-domain filtering in the case of cascaded filter banks
EP1999747B1 (en) 2006-03-29 2016-10-12 Koninklijke Philips N.V. Audio decoding
US7612275B2 (en) * 2006-04-18 2009-11-03 Nokia Corporation Method, apparatus and computer program product for providing rhythm information from an audio signal
US7818079B2 (en) * 2006-06-09 2010-10-19 Nokia Corporation Equalization based on digital signal processing in downsampled domains
US8682652B2 (en) 2006-06-30 2014-03-25 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic
US20080004866A1 (en) * 2006-06-30 2008-01-03 Nokia Corporation Artificial Bandwidth Expansion Method For A Multichannel Signal
EP2337224B1 (en) * 2006-07-04 2017-06-21 Dolby International AB Filter unit and method for generating subband filter impulse responses
US7876904B2 (en) 2006-07-08 2011-01-25 Nokia Corporation Dynamic decoding of binaural audio signals
JP2008076847A (ja) * 2006-09-22 2008-04-03 Matsushita Electric Ind Co Ltd 復号器及び信号処理システム
WO2008035949A1 (en) * 2006-09-22 2008-03-27 Samsung Electronics Co., Ltd. Method, medium, and system encoding and/or decoding audio signals by using bandwidth extension and stereo coding
KR101434198B1 (ko) * 2006-11-17 2014-08-26 삼성전자주식회사 신호 복호화 방법
JP5171842B2 (ja) 2006-12-12 2013-03-27 フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー．ファオ 時間領域データストリームを表している符号化および復号化のための符号器、復号器およびその方法
US7783478B2 (en) * 2007-01-03 2010-08-24 Alexander Goldin Two stage frequency subband decomposition
KR101379263B1 (ko) * 2007-01-12 2014-03-28 삼성전자주식회사 대역폭 확장 복호화 방법 및 장치
US7885819B2 (en) 2007-06-29 2011-02-08 Microsoft Corporation Bitstream syntax for multi-process audio decoding
KR101464977B1 (ko) * 2007-10-01 2014-11-25 삼성전자주식회사 메모리 관리 방법, 및 멀티 채널 데이터의 복호화 방법 및장치
US8655663B2 (en) * 2007-10-26 2014-02-18 D&M Holdings, Inc. Audio signal interpolation device and audio signal interpolation method
EP2215629A1 (en) * 2007-11-27 2010-08-11 Nokia Corporation Multichannel audio coding
CA2708861C (en) 2007-12-18 2016-06-21 Lg Electronics Inc. A method and an apparatus for processing an audio signal
EP2077550B8 (en) * 2008-01-04 2012-03-14 Dolby International AB Audio encoder and decoder
AU2009221443B2 (en) * 2008-03-04 2012-01-12 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus for mixing a plurality of input data streams
KR101428487B1 (ko) * 2008-07-11 2014-08-08 삼성전자주식회사 멀티 채널 부호화 및 복호화 방법 및 장치
CN101630509B (zh) * 2008-07-14 2012-04-18 华为技术有限公司 一种编解码方法、装置及系统
TWI662788B (zh) 2009-02-18 2019-06-11 瑞典商杜比國際公司 用於高頻重建或參數立體聲之複指數調變濾波器組
AU2016262695B2 (en) * 2009-02-18 2017-11-09 Dolby International Ab Low Delay Modulated Filter Bank
JP4932917B2 (ja) * 2009-04-03 2012-05-16 株式会社エヌ・ティ・ティ・ドコモ 音声復号装置、音声復号方法、及び音声復号プログラム
AU2012204119B2 (en) * 2009-04-03 2014-04-03 Ntt Docomo, Inc. Speech encoding device, speech decoding device, speech encoding method, speech decoding method, speech encoding program, and speech decoding program
CN101556799B (zh) * 2009-05-14 2013-08-28 华为技术有限公司 一种音频解码方法和音频解码器
JP5365363B2 (ja) * 2009-06-23 2013-12-11 ソニー株式会社 音響信号処理システム、音響信号復号装置、これらにおける処理方法およびプログラム
US9055374B2 (en) * 2009-06-24 2015-06-09 Arizona Board Of Regents For And On Behalf Of Arizona State University Method and system for determining an auditory pattern of an audio segment
ES2805349T3 (es) 2009-10-21 2021-02-11 Dolby Int Ab Sobremuestreo en un banco de filtros de reemisor combinado
CN102667920B (zh) * 2009-12-16 2014-03-12 杜比国际公司 Sbr比特流参数缩混
KR102020334B1 (ko) * 2010-01-19 2019-09-10 돌비 인터네셔널 에이비 고조파 전위에 기초하여 개선된 서브밴드 블록
CN102157149B (zh) * 2010-02-12 2012-08-08 华为技术有限公司 立体声信号下混方法、编解码装置和编解码系统
CA3097372C (en) 2010-04-09 2021-11-30 Dolby International Ab Mdct-based complex prediction stereo coding
ES2719102T3 (es) * 2010-04-16 2019-07-08 Fraunhofer Ges Forschung Aparato, procedimiento y programa informático para generar una señal de banda ancha que utiliza extensión de ancho de banda guiada y extensión de ancho de banda ciega
MX2012001696A (es) 2010-06-09 2012-02-22 Panasonic Corp Metodo de extension de ancho de banda, aparato de extension de ancho de banda, programa, circuito integrado, y aparato de descodificacion de audio.
US12002476B2 (en) 2010-07-19 2024-06-04 Dolby International Ab Processing of audio signals during high frequency reconstruction
CN103155033B (zh) * 2010-07-19 2014-10-22 杜比国际公司 高频重建期间的音频信号处理
BR122021003884B1 (pt) 2010-08-12 2021-11-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. Reamostrar sinais de saída de codecs de áudio com base em qmf
CA3191597C (en) 2010-09-16 2024-01-02 Dolby International Ab Cross product enhanced subband block based harmonic transposition
KR20120038311A (ko) 2010-10-13 2012-04-23 삼성전자주식회사 공간 파라미터 부호화 장치 및 방법，그리고 공간 파라미터 복호화 장치 및 방법
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
PL2676265T3 (pl) 2011-02-14 2019-09-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Urządzenie i sposób do kodowania sygnału audio z stosowaniem zrównanej części antycypacji
BR112013020482B1 (pt) * 2011-02-14 2021-02-23 Fraunhofer Ges Forschung aparelho e método para processar um sinal de áudio decodificado em um domínio espectral
MY166394A (en) 2011-02-14 2018-06-25 Fraunhofer Ges Forschung Information signal representation using lapped transform
TWI488176B (zh) 2011-02-14 2015-06-11 Fraunhofer Ges Forschung 音訊信號音軌脈衝位置之編碼與解碼技術
KR101551046B1 (ko) 2011-02-14 2015-09-07 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 저-지연 통합 스피치 및 오디오 코딩에서 에러 은닉을 위한 장치 및 방법
PL2676264T3 (pl) 2011-02-14 2015-06-30 Fraunhofer Ges Forschung Koder audio estymujący szum tła podczas faz aktywnych
KR101525185B1 (ko) 2011-02-14 2015-06-02 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 트랜지언트 검출 및 품질 결과를 사용하여 일부분의 오디오 신호를 코딩하기 위한 장치 및 방법
EP3544006A1 (en) 2011-11-11 2019-09-25 Dolby International AB Upsampling using oversampled sbr
EP2828854B1 (en) 2012-03-23 2016-03-16 Dolby Laboratories Licensing Corporation Hierarchical active voice detection
US9601122B2 (en) * 2012-06-14 2017-03-21 Dolby International Ab Smooth configuration switching for multichannel audio
EP3528249A1 (en) 2013-04-05 2019-08-21 Dolby International AB Stereo audio encoder and decoder
EP3742440B1 (en) 2013-04-05 2024-07-31 Dolby International AB Audio decoder for interleaved waveform coding
EP2830053A1 (en) * 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Multi-channel audio decoder, multi-channel audio encoder, methods and computer program using a residual-signal-based adjustment of a contribution of a decorrelated signal
EP2830052A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio decoder, audio encoder, method for providing at least four audio channel signals on the basis of an encoded representation, method for providing an encoded representation on the basis of at least four audio channel signals and computer program using a bandwidth extension
EP2830061A1 (en) 2013-07-22 2015-01-28 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for encoding and decoding an encoded audio signal using temporal noise/patch shaping
TWI557726B (zh) * 2013-08-29 2016-11-11 杜比國際公司 用於決定音頻信號的高頻帶信號的主比例因子頻帶表之系統和方法
KR102318581B1 (ko) * 2014-06-10 2021-10-27 엠큐에이 리미티드 오디오 신호의 디지털 캡슐화
EP2963646A1 (en) 2014-07-01 2016-01-06 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Decoder and method for decoding an audio signal, encoder and method for encoding an audio signal
EP3192282A1 (en) * 2014-09-12 2017-07-19 Dolby Laboratories Licensing Corp. Rendering audio objects in a reproduction environment that includes surround and/or height speakers
US9837065B2 (en) 2014-12-08 2017-12-05 Ford Global Technologies, Llc Variable bandwidth delayless subband algorithm for broadband active noise control system
EP3067889A1 (en) 2015-03-09 2016-09-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method and apparatus for signal-adaptive transform kernel switching in audio coding
TWI693594B (zh) 2015-03-13 2020-05-11 瑞典商杜比國際公司 解碼具有增強頻譜帶複製元資料在至少一填充元素中的音訊位元流
US10672408B2 (en) 2015-08-25 2020-06-02 Dolby Laboratories Licensing Corporation Audio decoder and decoding method
WO2017124007A1 (en) * 2016-01-15 2017-07-20 Dolby Laboratories Licensing Corporation Audio signal processing with low latency
EP3203472A1 (en) * 2016-02-08 2017-08-09 Oticon A/s A monaural speech intelligibility predictor unit
TWI807562B (zh) 2017-03-23 2023-07-01 瑞典商都比國際公司 用於音訊信號之高頻重建的諧波轉置器的回溯相容整合
PL3707706T3 (pl) * 2017-11-10 2021-11-22 Nokia Technologies Oy Określanie kodowania przestrzennego parametrów dźwięku i związane z tym dekodowanie
CN107918710B (zh) * 2017-11-22 2020-11-06 桂林电子科技大学 基于凸优化的非下采样图滤波器组的设计方法
CN108806705A (zh) * 2018-06-19 2018-11-13 合肥凌极西雅电子科技有限公司 音频处理方法和处理系统
US11195543B2 (en) * 2019-03-22 2021-12-07 Clear Peaks LLC Systems, devices, and methods for synchronizing audio
CN113314132B (zh) * 2021-05-17 2022-05-17 武汉大学 交互式音频系统中的音频对象编码方法、解码方法及装置
CN117292694B (zh) * 2023-11-22 2024-02-27 中国科学院自动化研究所 基于时不变编码的少令牌神经语音编解码方法和系统

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3211752C2 (de) 1982-03-30 1985-09-26 Siemens AG, 1000 Berlin und 8000 München Verfahren zum selektiven Abscheiden von aus Siliziden hochschmelzender Metalle bestehenden Schichtstrukturen auf im wesentlichen aus Silizium bestehenden Substraten und deren Verwendung
JPS621228A (ja) 1985-06-26 1987-01-07 Fujitsu Ltd タングステンシリサイドの選択成長方法
US4692343A (en) 1985-08-05 1987-09-08 Spectrum Cvd, Inc. Plasma enhanced CVD
US4737474A (en) 1986-11-17 1988-04-12 Spectrum Cvd, Inc. Silicide to silicon bonding process
US4902645A (en) 1987-08-24 1990-02-20 Fujitsu Limited Method of selectively forming a silicon-containing metal layer
DE69127842T2 (de) * 1990-03-09 1998-01-29 At & T Corp Hybride wahrnehmungsgebundene Kodierung von Audiosignalen
JPH0410429A (ja) 1990-04-26 1992-01-14 Matsushita Electron Corp 半導体装置
JP2892451B2 (ja) 1990-07-13 1999-05-17 住友重機械工業株式会社 電気―空気サーボアクチュエータ
NL9100173A (nl) 1991-02-01 1992-09-01 Philips Nv Subbandkodeerinrichting, en een zender voorzien van de kodeerinrichting.
US5392037A (en) * 1991-05-21 1995-02-21 Matsushita Electric Industrial Co., Ltd. Method and apparatus for encoding and decoding
JP2778324B2 (ja) * 1992-01-24 1998-07-23 日本電気株式会社 サブバンド分割方式
JPH05235701A (ja) * 1992-02-25 1993-09-10 Nippon Steel Corp 環状畳み込みによるディジタルフィルタバンク処理方法及び装置
US5408580A (en) * 1992-09-21 1995-04-18 Aware, Inc. Audio compression system employing multi-rate signal analysis
US5926791A (en) * 1995-10-26 1999-07-20 Sony Corporation Recursively splitting the low-frequency band with successively fewer filter taps in methods and apparatuses for sub-band encoding, decoding, and encoding and decoding
US5956674A (en) * 1995-12-01 1999-09-21 Digital Theater Systems, Inc. Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels
US5852806A (en) * 1996-03-19 1998-12-22 Lucent Technologies Inc. Switched filterbank for use in audio signal coding
KR100261253B1 (ko) * 1997-04-02 2000-07-01 윤종용 비트율 조절이 가능한 오디오 부호화/복호화 방법및 장치
SE512719C2 (sv) * 1997-06-10 2000-05-02 Lars Gustaf Liljeryd En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion
US5890125A (en) * 1997-07-16 1999-03-30 Dolby Laboratories Licensing Corporation Method and apparatus for encoding and decoding multiple audio channels at low bit rates using adaptive selection of encoding method
US6016473A (en) * 1998-04-07 2000-01-18 Dolby; Ray M. Low bit-rate spatial coding method and system
KR100354531B1 (ko) * 1998-05-06 2005-12-21 삼성전자 주식회사 실시간 복호화를 위한 무손실 부호화 및 복호화 시스템
SE9903553D0 (sv) * 1999-01-27 1999-10-01 Lars Liljeryd Enhancing percepptual performance of SBR and related coding methods by adaptive noise addition (ANA) and noise substitution limiting (NSL)
US6978236B1 (en) * 1999-10-01 2005-12-20 Coding Technologies Ab Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching
US7260523B2 (en) * 1999-12-21 2007-08-21 Texas Instruments Incorporated Sub-band speech coding system
SE0001926D0 (sv) * 2000-05-23 2000-05-23 Lars Liljeryd Improved spectral translation/folding in the subband domain
JP2001339311A (ja) * 2000-05-26 2001-12-07 Yamaha Corp オーディオ信号圧縮回路および伸長回路
US6996198B2 (en) * 2000-10-27 2006-02-07 At&T Corp. Nonuniform oversampled filter banks for audio signal processing
EP1423847B1 (en) * 2001-11-29 2005-02-02 Coding Technologies AB Reconstruction of high frequency components
KR101049751B1 (ko) * 2003-02-11 2011-07-19 코닌클리케 필립스 일렉트로닉스 엔.브이. 오디오 코딩

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